Whaler Sharks - seafdec.org.my
Whaler Sharks - seafdec.org.my
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SHARKS and RAYS of<br />
BORNEO<br />
Peter R. Last 4<br />
William T. White 4<br />
Janine N. Caira 4<br />
Dharmadi 4<br />
Fahmi 4<br />
Kirsten Jensen 4<br />
Annie P. K. Lim 4<br />
B. Mabel Manjaji-Matsumoto 4<br />
Gavin J. P. Naylor 4<br />
John J. Pogonoski 4<br />
John D. Stevens 4<br />
Gordon K. Yearsley 4
SHARKS and RAYS of<br />
BORNEO<br />
Peter R. Last 4<br />
William T. White 4<br />
Janine N. Caira 4<br />
Dharmadi 4<br />
Fahmi 4<br />
Kirsten Jensen 4<br />
Annie P. K. Lim 4<br />
B. Mabel Manjaji-Matsumoto 4<br />
Gavin J. P. Naylor 4<br />
John J. Pogonoski 4<br />
John D. Stevens 4<br />
Gordon K. Yearsley 4
© CSIRO 2010<br />
All rights reserved. Except under the conditions described in the Australian Copyright Act 1968<br />
and subsequent amendments, no part of this publication may be reproduced, stored in a<br />
retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying,<br />
recording, duplicating or otherwise, without the prior permission of the copyright<br />
owner. Contact the author for all permission requests.<br />
The National Library of Australia Cataloguing-in-Publication entry<br />
Last, Peter R. (Peter Robert) et al.<br />
<strong>Sharks</strong> and rays of Borneo/ Peter R. Last, William T. White, Janine N. Caira,<br />
Dharmadi, Fahmi, Kirsten Jensen, Annie P.K. Lim, B. Mabel Manjaji-Matsumoto,<br />
Gavin J.P. Naylor, John J. Pogonoski, John D. Stevens, Gordon K. Yearsley.<br />
9781921605598 (pbk.)<br />
9781921605642 (pdf)<br />
Includes index.<br />
Bibliography<br />
<strong>Sharks</strong> – Borneo.<br />
Rays (Fishes) – Borneo.<br />
597.3095983<br />
Produced and distributed by<br />
CSIRO PUBLISHING<br />
150 Oxford Street (PO Box 1139)<br />
Collingwood VIC 3066<br />
Australia<br />
Telephone: +61 3 9662 7666<br />
Local call: 1300 788 000 (Australia only)<br />
Fax: +61 3 9662 7555<br />
Email: publishing.sales@csiro.au<br />
Web site: www.publish.csiro.au<br />
Cover design by Louise Bell<br />
Illustrations by Ge<strong>org</strong>ina Davis, Lindsay Marshall and Stephanie Barnes<br />
Book design by William White and Peter Last<br />
Layout by William White<br />
Printed in Australia by Ligare
iii<br />
Foreword<br />
Slow growth, delayed maturity and low fecundity make chondrichthyans<br />
particularly vulnerable to the many sources of mortality accompanying<br />
humankind’s spreading influence on the planet. Habitat degradation, overfishing<br />
and unsustainable fishing practices, including dynamiting, cyanide poisoning and<br />
finning, all contribute to the pressures imposed on this unproductive group of<br />
fishes. About a fifth of Indo-Australian chondrichthyans are considered threatened<br />
and forty percent of conservation concern in the 2009 IUCN Red List, so it<br />
is critical that regional faunas are well defined and guides are available to help<br />
make accurate identifications of species. Taxono<strong>my</strong> is providing an increasingly<br />
important basis for managing species - the Borneo Broadfin Shark (Lamiopsis<br />
tephrodes Fowler, 1905) was recently resurrected from what was previously<br />
considered to be the monotypic genus Lamiopsis, as a result primarily of evidence<br />
of substantial DNA sequence divergence between sister species. Accurate<br />
taxono<strong>my</strong> remains the product of painstaking effort from a committed group of<br />
experts using all contemporary tools available.<br />
Taxonomic studies of the fishes of Borneo started almost 200 years ago. In 1996,<br />
an international project funded by the Darwin Foundation provided data on 36<br />
chondrichthyan species from Sabah, and three years later a published checklist<br />
from Borneo included 82 species. During a National Science Foundation (NSF)<br />
study of the metazoan parasites of Borneo and their chondrichthyan hosts, this list<br />
was expanded to include 118 chondrichthyan species and provided the impetus<br />
for the international collaboration that has produced this book. This guide will aid<br />
the conservation and management of this most vulnerable group of marine fishes<br />
and provide much pleasure to people interested in the natural history of Borneo,<br />
particularly its highly diverse shark and ray fauna.<br />
Nic Bax<br />
Leader, Marine Biodiversity and Conservation Management Research, CSIRO<br />
Director, CERF Marine Biodiversity Hub.<br />
Australia
iv<br />
Contents<br />
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii<br />
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1<br />
How to use this book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9<br />
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12<br />
Key to families and genera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23<br />
Hexanchiformes<br />
Hexanchidae (Cowsharks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36<br />
Squaliformes<br />
Squalidae (Dogfishes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38<br />
Centrophoridae (Gulper <strong>Sharks</strong>) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40<br />
Squatiniformes<br />
Squatinidae (Angelsharks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42<br />
Heterodontiformes<br />
Heterodontidae (Hornsharks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44<br />
Orectolobiformes<br />
Orectolobidae (Wobbegongs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46<br />
Hemiscylliidae (Longtail Carpetsharks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48<br />
Ginglymostomatidae (Nurse <strong>Sharks</strong>) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56<br />
Stegostomatidae (Zebra <strong>Sharks</strong>) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58<br />
Rhincodontidae (Whale <strong>Sharks</strong>) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60<br />
Lamniformes<br />
Alopiidae (Thresher <strong>Sharks</strong>) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62<br />
Lamnidae (Mackerel <strong>Sharks</strong>) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64<br />
Carcharhiniformes<br />
Scyliorhinidae (Catsharks) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66<br />
Triakidae (Houndsharks). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74<br />
Hemigaleidae (Weasel <strong>Sharks</strong>) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86<br />
Sphyrnidae (Hammerhead <strong>Sharks</strong>) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Rajiformes<br />
Pristoidei<br />
Pristidae (Sawfishes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140<br />
Rhinoidei<br />
Rhinidae (Shark Rays) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146<br />
Rhynchobatoidei<br />
Rhynchobatidae (Wedgefishes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148<br />
Rhinobatoidei<br />
Rhinobatidae (Shovelnose Rays). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154<br />
Torpedinoidei<br />
Narcinidae (Numbfishes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160<br />
Narkidae (Sleeper Rays) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166<br />
Rajoidei<br />
Rajidae (Skates) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170<br />
Anacanthobatidae (Leg Skates) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178<br />
Myliobatoidei<br />
Plesiobatidae (Giant Stingarees) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180<br />
Dasyatidae (Stingrays) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182<br />
Gymnuridae (Butterfly Rays) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238<br />
Myliobatidae (Eagle Rays) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242<br />
Rhinopteridae (Cownose Rays) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252<br />
Mobulidae (Devilrays) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256<br />
Chimaeriformes<br />
Chimaeridae (Shortnose Chimaeras) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266<br />
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268<br />
Images sourced outside Borneo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270<br />
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271<br />
Checklist of Borneo sharks and rays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277<br />
Scientific names index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283<br />
English common names index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288<br />
Indonesian common names index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293<br />
Malaysian common names index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Introduction<br />
The region<br />
The island of Borneo lies at the western margin of the Coral Triangle of South-East<br />
Asia, a mega-diverse faunal region comprising the Philippines, Malaysia, Indonesia,<br />
Timor-Leste, Papua New Guinea and the Solomon Islands. Borneo is surrounded<br />
by four large marine basins, the Sulu, Celebes, Java and South China Seas. Divided<br />
administratively between the States of Brunei, Indonesia (Kalimantan), and Malaysia<br />
(Sabah and Sarawak), the 730,000 km 2 landmass supports a population of about<br />
18 million people. Considered to have unparalleled terrestrial biodiversity, its aquatic<br />
environments are equally complex and variable with a rich variety of habitats in both<br />
the sea and freshwater. Borneo has the longest rivers in Indonesia (Kapuas River,<br />
ca 1,140 km) and Malaysia (Rajang River, ca 560 km), as well as a few others longer<br />
than 800 km. Runoff from these rivers controls salinity in the nearby coastal zone,<br />
particularly in the south, forming expansive plumes of brackish water that create<br />
marginal estuaries that extend well into the open sea. Other parts of the island, such<br />
as the northern coast, are devoid of large rivers and here the habitats are dominated by<br />
freshwater intolerant marine species. There are also extensive areas of coral reef off the<br />
west coast. Very deep water habitats are restricted to parts of the Celebes and Sulu seas.<br />
Consequently, the intraregional distribution of the marine biota and its utilisation also<br />
vary considerably within the region.<br />
Biodiversity<br />
Borneo is considered to be a major centre of evolution and radiation of endemic<br />
terrestrial plants and animals. It is known to harbour 15,000 or so species of plants,<br />
more than 220 species of terrestrial mammals, and some 420 species of endemic birds.<br />
This high endemicity is largely due to extinction and speciation events during the<br />
Pleistocene ice ages and separation from continental Asia during the Holocene. A<br />
high level of endemism is shared by nearby aquatic systems, and of the 394 species of<br />
freshwater fishes, 149 are endemic to the island. Falling within the Coral Triangle, which<br />
covers only 2% of the world’s oceans but contains 76% of known coral species, the<br />
marine fish fauna is equally impressive. In a comprehensive biodiversity survey of coral<br />
reef fishes of the Indo Pacific, Allen (2008) recorded almost 1,500 species in the 100,000<br />
km 2 grid along the eastern border of Sabah and Kalimantan.<br />
Early work on Borneo fishes<br />
Borneo is historically important in ichthyology as it is the collection locality for some<br />
of the first taxonomic studies of the region’s fishes. Schlegel & Müller (1839) described<br />
the first marine fish from the region and soon after, Heckel (1843) described species<br />
from freshwater. Their work was followed by the unparalleled efforts of the Dutch<br />
field scientist, Pieter Bleeker, who between 1850 and 1876 described more than
S h a r k s a n d R a y s o f B o r n e o<br />
1,100 new fish species from the Indo-Malay archipelago, including a large number of<br />
chondrichthyans, and produced the historically important Atlas Ichthyologique des Indes<br />
Orientales Néerlandaises. Many of Bleeker’s 12,000 or so fish specimens are catalogued<br />
at the Natural History Museum in Leiden, Netherlands. Other famous 19 th C<br />
ichthyologists, including Richardson, Günther and Kaup, also made important contributions<br />
to our knowledge of this fascinating fauna.<br />
Cartilaginous fishes are relatively diverse in both marine and freshwater environments<br />
of Borneo. The region is the type locality for Pristis zijsron, Carcharhinus borneensis,<br />
C. sealei, Lamiopsis tephrodes and Sinobatis borneensis, as well as 10 new species<br />
discovered recently, i.e. Orectolobus leptolineatus, Cephaloscyllium sarawakensis, Glyphis<br />
fowlerae, Rhynchobatus springeri, Okamejei cairae, Okamejei jensenae, Himantura lobistoma,<br />
Pastinachus gracilicaudus, Pastinachus solocirostris and Pastinachus stellurostris. Until recently,<br />
this fauna was poorly known and accounts by field scientists in the mid-19 th C<br />
produced only patchy records of the region’s elasmobranchs. Cantor (1849) compiled<br />
a catalogue of Malaysian fishes that included 28 species of sharks and rays. Basic<br />
information, such as collection details, morphological traits, distribution within the<br />
region and basic biology, were not collected. In the early 20 th C, Henry Fowler<br />
and Albert Herre provided supplementary data on elasmobranchs from the region,<br />
especially from Sabah and Sarawak. Fowler, in particular, considered most of Bleeker’s<br />
new rays to be invalid. During a series of ad hoc surveys in the early 1990s, several of<br />
Bleeker’s species were rediscovered in fish markets of nearby Java rekindling interest in<br />
the taxono<strong>my</strong> of the group.<br />
Environmental pressures<br />
About 120 million people, whose livelihoods depend directly on fishing, live along the<br />
coasts and islands of the Coral Triangle. This large population is placing huge pressures<br />
on the marine environment through a range of fishing activities, many of which are<br />
unreported and unregulated (but not illegal, particularly fishing activities of the numerous<br />
artisanal fishers, where marine fishes are considered as “free common-good resources”).<br />
The live fish trade, supplying dominant markets in Hong Kong and China, takes some<br />
30,000 t/yr of reef fish worth more than US$150/kg out of the Coral Triangle, with<br />
Kota Kinabalu the main base in Malaysia. As well as supplying restaurants, these fish also<br />
enter the ornamental fish trade and many are caught by illegal cyanide fishing. Due to<br />
dynamite fishing, illegal, unreported and unregulated (IUU) fishing by other South-<br />
East Asian countries, and over-harvesting of invertebrates such as triton, sea cucumber<br />
and giant clam, the area’s coral reefs and associated ecosystems are being increasingly<br />
threatened. While there are some Marine Parks in the region, the lack of enforcement<br />
reduces their effectiveness. However there are some recent encouraging initiatives. In<br />
March 2008, the Asia Development Bank provided a US$1.5 million grant for environmentalists<br />
and respective governments to protect the forests and seas of Brunei, Indonesia,<br />
Malaysia and the Philippines.
I n t r o d u c t i o n<br />
<br />
Shark fisheries<br />
Major environmental degradation in Borneo, along with a four-fold increase in<br />
worldwide fisheries since World War II, has coincided with a major increase in<br />
exploitation of cartilaginous fishes. Most species known from Borneo occur in coastal<br />
or freshwater habitats easily accessible to fisheries and other antropogenic activities<br />
impacting on these fishes. Indonesia traditionally has the largest annual global production of<br />
elasmobranchs but, despite the early focus on them, only recently has the composition of<br />
this fauna been comprehensively described. The declaration of the Indonesian Exclusive<br />
Economic Zone (EEZ) in 1983, which includes the waters of Kalimantan, gives Indonesia<br />
control of more than 5.4 million km 2 of sea. With a reported 118,000 and 121,000<br />
tonnes landed in 2003 and 2004 respectively, Indonesia has the largest chondrichthyan<br />
fishery in the world. Catches of Malaysian Borneo are smaller but far from insignificant.<br />
Chondrichthyans are caught locally by target fisheries, and as commercial and artisanal<br />
bycatch, using fishing methods that vary greatly geographically and between nations. In<br />
Indonesia, chondrichthyans are targeted using a variety of fishing methods, such as gill<br />
and tangle nets, longlines and harpoons. Fisheries that land substantial catches of elasmobranchs<br />
as bycatch include those operating small-scale bottom trawls, trammel and gill<br />
nets, and longlines and droplines. In Malaysia, demersal trawling and drift nets account for<br />
the bulk of the catch (DOFM, 2006).<br />
Darwin project<br />
In 1996, the first major investigation of the elasmobranchs of Sabah was initiated<br />
by an international research team led by Sarah Fowler and supported by funding<br />
from the UK Darwin Foundation. This project attempted to answer basic questions<br />
relating to the biodiversity, fisheries impact, biology, and conservation status of coastal<br />
marine and freshwater elasmobranchs of Sabah, and compile a preliminary checklist of<br />
chondrichthyans of greater Borneo. The survey work, which focused on both coastal<br />
marine and freshwater habitats, uncovered a relatively rich freshwater fauna. For<br />
example, Fowler & Payne (1995) recorded two species of rays, several species of rare<br />
sharks and a species of sawfish, from the Kinabatangan River in East Malaysia. A<br />
preliminary report on the project was published by Cook & Compagno (1996) providing<br />
data on 36 elasmobranch species in markets and freshwater habitats of Sabah. At the<br />
completion of the formal survey of elasmobranchs from fish markets, and river and<br />
coastal villages throughout Sabah, conducted by the IUCN Shark Specialist Group (see<br />
Fowler et al., 1999), 69 species of elasmobranchs (34 sharks and 35 rays) were recorded, 23<br />
of which were new records for the state. Of particular note was the listing of new species<br />
of the river shark, genus Glyphis, and new species of Mustelus, Orectolobus and Rhynchobatus.<br />
A checklist of chondrichthyan fishes of all of Borneo was compiled at the same time,<br />
which included 82 species (40 sharks, 41 rays and 1 chimaera).<br />
Following on from this project (1999-2004), a primarily Malaysian led study of the<br />
chondrichthyans of Brunei and Malaysia, including Sabah and Sarawak, led to the
S h a r k s a n d R a y s o f B o r n e o<br />
collection of 760 specimens of 79 species, comprised of 43 sharks, 35 rays and one<br />
chimaera (Yano et al., 2005), but some of these species appear to be invalid. A new<br />
and valid species of catshark, Cephaloscyllium sarawakensis, was also described from this<br />
research.<br />
Figure 1 Map of Borneo showing the locations of landing sites and villages surveyed. The<br />
different landmass colours used correspond to the different countries making up Borneo:<br />
grey (Indonesia), green (Malaysia) and yellow (Brunei).
I n t r o d u c t i o n<br />
<br />
National Science Foundation project<br />
The Darwin project was followed by a more broad-based field project funded largely by<br />
the National Science Foundation (NSF) covering the whole of Borneo. In a multi-agency<br />
collaborative effort, involving parasite and elasmobranch taxonomists from institutions<br />
in the USA, Australia, Indonesia and Malaysia, this project focused on surveying and<br />
describing the chondrichthyans and their metazoan parasite faunas of inshore, estuarine<br />
and selected freshwater habitats. The project consisted of two phases: field surveys of<br />
Malaysian Borneo (2002–04) and Indonesian Kalimantan (2006–08) (Fig. 1). Earlier<br />
research suggested this region was home to well over 100 species of sharks and rays, many<br />
of which were poorly known, and some new to science. While records of metazoan<br />
parasites were virtually non-existent for elasmobranchs in this geographic region, based<br />
on studies elsewhere, it was predicted that the host fauna could yield over 500 parasite<br />
species with well over 70% new to science. In all, over 600 species of metazoan parasites,<br />
of which about 85% are new to science, were collected during the project.<br />
Several thousand elasmobranch specimens were examined from research and chartered<br />
fishing vessels, commercial trawlers, landing sites, and fish markets from around the<br />
island. In many cases, these specimens were documented with a series of digital photos.<br />
These images can be accessed via the elasmobranch host specimen database available<br />
at https://web2.uconn.edu/tapeworm/hosts.php. Tissue samples were taken from<br />
elasmobranch specimens whenever possible for subsequent DNA sequencing,<br />
comparative analysis and species validation. These sequences are being databased as part of<br />
a global elasmobranch sequence repository that will eventually serve as a baseline against<br />
which new elasmobranch records can be compared. The surveys led to the descriptions<br />
of an additional 9 new species, as well as specimens of endangered, rare or little known<br />
species, including the rediscovery of the Borneo Shark (Carcharhinus borneensis), once<br />
considered to be extinct. These baseline taxonomic data can be used to facilitate development<br />
of a resource management plan for elasmobranchs of the region. Several inshore<br />
species exhibit regional patterns in distribution that appear to be closely related to habitat<br />
availability. For example, several micro-endemic stingrays (genera Himantura and Pastinachus)<br />
occur in the environs of the large Kapuas River estuary in western Kalimantan, and<br />
the region has additional undocumented, extreme, intraspecific variability in some shark<br />
groups.<br />
Characteristics of the fauna<br />
The chondrichthyan fauna of Borneo presently contains 118 validated species, including<br />
52 sharks, 65 rays and 1 chimaera. The representation of the group at highest taxonomic<br />
levels (Table 1) is similar to regions adjacent (i.e. northwestern Australia, Philippines<br />
and Indonesia), but there are some differences in the relative importance of some<br />
subgroups. For example, ground sharks (Carcharhiniformes) and eagle rays and their allies<br />
(Myliobatoidei) are the dominant subgroups in each region comprising more than 20%<br />
of the species; the latter are more dominant in Borneo than any other region. Conversely,<br />
dogsharks (Squaliformes) and skates (Rajoidei) are relatively depauperate in Borneo and
S h a r k s a n d R a y s o f B o r n e o<br />
Table 1 Proportional species richness (%) of shark and ray groups across the region.<br />
Higher taxa<br />
NW Philippines Indonesia Borneo<br />
Australia<br />
Heterodontiformes 1 1 - 1<br />
Lamniformes 5 6 6 2<br />
Orectolobiformes 7 6 6 7<br />
Carcharhiniformes 31 32 33 31<br />
Hexanchiformes 2 2 2 1<br />
Squaliformes 12 10 10 2<br />
Squatiniformes 1 1 1 1<br />
Pristiphoriformes - 1 - -<br />
Pristoidei 3 2 1 3<br />
Rhinoidei 1 1 1 1<br />
Rhynchobatoidei 1 2 2 2<br />
Rhinobatoidei 2 3 4 2<br />
Platyrhinoidei - 1 - -<br />
Torpedinoidei 3 4 1 4<br />
Rajoidei 8 7 1 4<br />
Myliobatoidei 20 21 33 38<br />
Chimaeriformes 3 2 1 1<br />
TOTAL 179 164 139 118<br />
this may be due to the comparative paucity of deepwater habitats near the coast. Clearly<br />
the richest chondrichthyan families in all regions, the whaler sharks (Carcharhinidae)<br />
and stingrays (Dasyatidae), both attained the highest relative proportions of any fauna in<br />
Borneo (Table 2). Also, eagle rays (Myliobatidae) and devil rays (Mobulidae) are more<br />
diverse in this region than off Australia. Once again, deepwater subgroups, such as the<br />
gulper sharks (Centrophoridae), spurdogs (Squalidae) and lantern sharks (Etmopteridae),<br />
were absent from the ten main families.<br />
Shelf demersal species, comprising about 70% of the fauna, are more dominant in Borneo<br />
than in other regions (Table 3); conversely, the proportions of outer shelf and slope species<br />
are comparatively low. Freshwater and estuarine species comprise almost 7% of the fauna;<br />
by far the highest proportion of any region and this may be linked to the diversity of<br />
these habitats in the region.
I n t r o d u c t i o n<br />
<br />
Table 2 Comparative proportional species richness (>2%) of the major shark and ray<br />
families across the region.<br />
Family NW Australia Philippines Indonesia Borneo<br />
Carcharhinidae 16 15 19 24<br />
Dasyatidae 12 11 19 25<br />
Scyliorhinidae 8 7 4 4<br />
Rajidae 8 7 4<br />
Triakidae 4 4 4<br />
Orectolobidae 3<br />
Centrophoridae 3 4 5<br />
Etmopteridae 3<br />
Squalidae 3 4 4<br />
Urolophidae 3<br />
Pristidae 3 3<br />
Myliobatidae 4 4 4<br />
Mobulidae 4 4<br />
Rhinobatidae 4 3<br />
Sphyrnidae 3 3<br />
Hemigaleidae 3 3<br />
Narcinidae 3<br />
Hemiscylliidae 4<br />
Rhynchobatidae 3<br />
Aims of this book<br />
This international collaborative survey, funded largely by the National Science<br />
Foundation, has provided a fuller understanding of the biodiversity of chondrichthyans<br />
and their parasite faunas in one of the most faunally diverse parts of the planet. This work<br />
complements related research on parasites and their host faunas conducted elsewhere<br />
over the past 25 years, as well as similar regional surveys of the chondrichthyans of<br />
the Philippines and Indonesia. In the late 1990s, an elasmobranch biodiversity and<br />
conservation project in the Philippines, defined the fauna and produced conservation<br />
and management strategies to ensure sustainability of chondrichthyan fisheries in the<br />
environs of the nearby Sulu Sea. Soon after, an ACIAR-funded investigation of the<br />
chondrichthyans of Indonesia led to the production of the first regional guide to the<br />
sharks and rays of this region. Collectively, these studies have contributed greatly to an<br />
improved knowledge of the composition and distribution of these fishes in the Indo-<br />
Malay Archipelago.
S h a r k s a n d R a y s o f B o r n e o<br />
Table 3 Proportional species richness (%) for primary biomes across the region.<br />
Habitat type<br />
NW<br />
Australia<br />
Philippines Indonesia Borneo<br />
Freshwater/estuarine 2 - 1 7<br />
Continental/insular shelves 49 52 60 72<br />
Shelf to slope (demersal) 12 13 8 7<br />
Continental/insular slopes 24 18 14 3<br />
Shelf to oceanic (pelagic) 9 14 14 11<br />
Oceanic (pelagic) 2 1 3 1<br />
Wide ranging 1 1 1 -
How to use this book<br />
This book is designed to assist in the identification of sharks, rays and chimaeras that can<br />
be observed in fisheries catches or in domestic fish markets in the riverine, estuarine and<br />
marine regions of Borneo. This island includes both Indonesian and Malaysian landmass<br />
and contains the entire country of Brunei. Species included in this guide are mostly those<br />
observed in fish market surveys of Borneo, but include some additional species taken<br />
in other surveys (e.g. Yano et al., 2005) or species that have been observed by divers in<br />
the region (e.g. Silvertip Shark Carcharhinus albimarginatus, Tawny Nurse Shark Nebrius<br />
ferrugineus).<br />
A key is provided so that a specimen can be systematically identified to its family<br />
and genus group. Users can go straight to the relevant chapter when the family is<br />
already known. However, where users are in any doubt they should firstly refer to<br />
the key when making an identification. Species treatment sections follow the keys<br />
and these are <strong>org</strong>anised in phylogenetic sequence of families, commencing with the<br />
cowsharks (Hexanchidae) and finishing with chimaeras (Chimaeridae). Each major<br />
group of sharks or chimaeras is colour coded at the level of order, while each major<br />
group of rays is colour coded at the level of suborder. Species within each family are<br />
arranged in alphabetical order of their scientific names and undescribed species are arranged<br />
prior to nominal members of the same genus. Species accounts have been kept relatively<br />
simple, but the use of technical ichthyological terms is sometimes unavoidable and users<br />
can consult the illustrated glossary for a definition of these terms.<br />
Species treatments<br />
Details of the identifying features, size, distribution, habitat and biology, and utilisation<br />
are provided for each species under appropriate subheadings. Additional information on<br />
other names, synonyms, conservation status and relevant literature, as well as images and<br />
maps, are also provided.<br />
Images and illustrations<br />
The primary image for each species is usually of a specimen from Borneo. However, in<br />
some circumstances, when local images were unavailable, a suitable image from a nearby<br />
region was used. A list of the species for which images were sourced from outside of<br />
Borneo is provided on page 270.<br />
Additional photographs were used, where possible, to highlight identifying characteristics<br />
of a species that are not apparent from the primary image alone. When photographs were<br />
unavailable or unsuitable, line drawings were used.
10 S h a r k s a n d R a y s o f B o r n e o<br />
Common and scientific names<br />
The recommended common names generally follow English names adopted<br />
by Compagno et al. (2005a) for sharks, and Last & Stevens (2009) and the relevant<br />
sections in Carpenter & Niem (1999) for rays, with the exception of some species that<br />
have a more commonly accepted regional name. Newly recognised species have been<br />
give new common names. Alternative English, Indonesian and Malaysian names used in<br />
the Indo–Malay Archipelago are also given under ‘Other names’. Local common names<br />
are based on information gathered during this project, and from Yano et al. (2005) and<br />
White et al. (2006b).<br />
The scientific name of each species consists of genus and species names, the name of<br />
the author(s) who named it, and the year in which it was named. Parentheses around<br />
the author(s) and date indicate that the species was originally placed in a different genus.<br />
Species of uncertain identity are referred to by their generic name followed by ‘sp.’.<br />
Identifying features<br />
These include the main features by which a species can be most easily identified in the<br />
field, such as body and tooth shapes, fin positions and dimensions, and colour pattern. Each<br />
character is ordered numerically and the corresponding number is usually positioned on<br />
either the primary or secondary images to illustrate the feature or at least its location.<br />
Size<br />
Maximum size, and the sizes at birth, hatching and sexual maturity, is given for each<br />
species when known. Unless stated otherwise, all measurements refer to total lengths of<br />
species. In the case of sharks, total length is measured as a straight line from the tip of the<br />
snout to the tip of the extended upper caudal-fin lobe. Ray sizes are also given as total<br />
lengths, except in the families Dasyatidae, Gymnuridae, Myliobatidae, Rhinopteridae and<br />
Mobulidae, where the tail is frequently absent or damaged. For these groups the main size<br />
measurement is disc width (DW), taken from the extremities of the left and right pectoral<br />
fins. The caudal filament at the tail tip of chimaeras is not included in the total length;<br />
instead, the length measurement is taken at the posterior edge of the caudal fin.<br />
Distribution<br />
Maps show the distribution of each species in Borneo with specimen records marked<br />
by circles; red is used for distributions recorded during the present study, blue for other<br />
distributional data, and orange for unpublished data collected in Kalimantan by one of<br />
us (Fahmi). An asterix indicates the type locality for those species originally described<br />
from Borneo. These maps reflect current knowledge, but many species are probably more<br />
widely distributed in the region. River drainages are not shown on the maps so some<br />
distributional appear to be on land. Global distributional ranges for species and their<br />
ranges within Borneo are provided separately in the text.
H o w t o u s e t h i s b o o k<br />
11<br />
Habitat and biology<br />
This section covers basic information on the habitats (pelagic and oceanic, demersal on<br />
continental shelf, etc.) and depth distributions of species, and also on aspects of their<br />
reproductive biology, age and growth, their prey and, in some cases, their potential<br />
danger to humans.<br />
Utilisation<br />
This section briefly details the way species are used in Borneo, including what parts of the<br />
animals are used. In some cases it relates to use in nearby regions when the full extent of<br />
use in Borneo is unclear or unknown.<br />
Conservation status<br />
The current (at time of writing) IUCN Red List Threatened Species Assessment for<br />
each species is included here, along with any other relevant conservation assessment<br />
(e.g. CITES). For the IUCN Red List category, species that are listed as Vulnerable,<br />
Endangered or Critically Endangered, are considered as ‘threatened’ species by the IUCN.<br />
Local synonyms<br />
Any other scientific names used for a particular species are listed in this section, including<br />
junior synonyms, temporary names and misidentifications (names followed by a colon).<br />
Only alternative names used within the Coral Triangle area are listed in this section, i.e.<br />
Borneo, Indonesia, Malaysian Peninsular, Philippines and New Guinea. The literature<br />
sources of any temporary names or misidentifications are also provided, as well as<br />
misidentified images in field guides.<br />
References<br />
This section includes relevant literature sources used for species in the general region.<br />
Primary regional references covering a large proportion of Borneo species, such as<br />
Carpenter & Niem (1999), Compagno et al. (2005a), Yano et al. (2005), White et al.<br />
(2006b) and Last & Stevens (2009), are not referred to repeatedly. Similarly, several major<br />
biological references relevant to the region were also not referred to repeatedly, i.e. White<br />
(2007c) and White & Dharmadi (2007). The full citations of references can be found in<br />
the Reference section beginning on page 271.<br />
Indexes<br />
Indexes of scientific names, English common names, and Indonesian and Malaysian<br />
local names are provided on pages 283–298, and a checklist of species known from<br />
Borneo is provided on pages 277–282. In the checklist, authorities are sometimes<br />
abbreviated to improve the layout, e.g. M. & H. for Müller & Henle, Bl. & Sch. for Bloch<br />
& Schneider.
12 S h a r k s a n d R a y s o f B o r n e o<br />
Glossary<br />
acute – sharp or pointed.<br />
adelphophagy – method of embryonic nutrition where the embryo cannibalises other<br />
embryos within the uterus.<br />
adpressed – pressed flat against the body.<br />
alar thorns – paired patches of thorns on the outer disc of mature male skates.<br />
angular – forming a distinct angle.<br />
anterior – relating to front of or head end of an object.<br />
barbel – a slender, tentacle-like sensory structure on the head.<br />
benthic – living on the bottom of the ocean.<br />
benthopelagic – living above but near the bottom of the ocean.<br />
bilobate – having two lobes.<br />
blotch – an enlarged area or patch that is different in colour to adjacent areas.<br />
brackish – waters with a salinity between that of freshwater and saltwater.<br />
buccal – pertaining to the mouth cavity.<br />
bycatch – component of the catch excluding targeted commercial species.<br />
cartilage – a skeletal material consisting of a matrix of soft, white or translucent<br />
chondrin.<br />
caudal keel – a longitudinal fleshy ridge along side of the caudal peduncle.<br />
caudal peduncle – the posterior part of the body supporting the caudal fin.<br />
cephalic lobe – broad lobe on forehead of some rays.<br />
cephalopods – group of animals including cuttlefishes, nautili, squids and octopi.<br />
cetaceans – group of aquatic mammals including whales and dolphins.<br />
chevron – a V-shaped pattern of adjoining lines.<br />
chondrichthyans – group of fishes including sharks, rays and chimaeras.<br />
chondrin – a horny, gelatinous protein substance that forms the matrix of cartilage.<br />
circumglobal – distributed around the world within a certain latitudinal range.<br />
claspers – modified portions of pelvic fins in male chondrichthyans used for
G l o s s a r y 13<br />
transferring sperm to female during mating.<br />
cloaca – a common opening for digestive, urinary and reproductive tracts (also called<br />
vent).<br />
common name – the informal name for an animal, which often varies from place to<br />
place.<br />
compressed – flattened laterally from side to side.<br />
concave – curved inwards (opposite of convex)<br />
continental shelf – the shelf-like part of the seabed adjacent to the coast to a depth of<br />
about 200 m.<br />
continental slope – the typically steep, slope-like part of seabed bordering the<br />
continental shelf to a depth of about 2000 m.<br />
convex – arched, curved outwards (opposite of concave).<br />
cosmopolitan – having a worldwide distribution.<br />
crenulate – margin shaped into small rounded scallops.<br />
crescentic – shaped like the new moon (roughly C-shaped).<br />
crustaceans – group of invertebrate animals including crabs, shrimps, prawns, lobsters<br />
and crayfish.<br />
cusp – a projection on a tooth.<br />
cusplet – a small cusp.<br />
demersal – living on or near the bottom of the ocean.<br />
denticle – a small, tooth-like structure; plate-like scale of a cartilaginous fish.<br />
depressed – dorsoventrally flattened from top to bottom.<br />
depth – height of body or head from top to bottom; also distance from sea surface to<br />
the bottom.<br />
dermal – relating to the skin.<br />
dermal flaps – outgrowths of skin.<br />
disc – the combined head, trunk and enlarged pectoral fins of those cartilaginous fishes<br />
with depressed bodies, e.g. stingrays.<br />
distal – region, border or point remote from the site of attachment (opposite of<br />
proximal).
14 S h a r k s a n d R a y s o f B o r n e o<br />
dorsal – relating to upper part or surface of back.<br />
dorsolateral – positioned or orientated between dorsal and lateral surfaces.<br />
dusky – slightly dark or greyish in colour.<br />
elasmobranchs – group of fishes including sharks and rays.<br />
electric <strong>org</strong>an – <strong>org</strong>an capable of delivering a mild electric shock.<br />
elongate – extended in length in relation to another object or drawn out.<br />
embedded – within surrounding tissue.<br />
endemic – native and restricted to a certain area.<br />
epipelagic – upper part of the oceanic zone from the surface to about 200 m.<br />
estuarine – living mainly in estuaries.<br />
falcate – curved like a sickle.<br />
family – a group term for classifying <strong>org</strong>anisms, containing one or more closely related<br />
genera.<br />
fauna – the communities of animals in an area.<br />
fertilisation – the union of male and female cells to form a new individual.<br />
filter feeding – filtering food particles from the water by means of the gill rakers.<br />
fusiform – spindle-shaped, tapering at both ends.<br />
genus – a group term for classifying <strong>org</strong>anisms, containing one or more related species.<br />
gestation – the period of development in the uterus from conception until birth.<br />
gillnet – a net used to tangle fishes.<br />
gill opening – an opening (usually slit-like in cartilaginous fishes) on head that<br />
connects the gill chamber to the exterior.<br />
granulations – fine denticles.<br />
habitat – the locality with its own particular environment in which an <strong>org</strong>anism lives.<br />
hammer-shaped – shaped with paired lateral expansions, like the head of a mallet.<br />
head – specialised anterior part of an animal on which the mouth and major sensory<br />
<strong>org</strong>ans are located; part other than body and tail.<br />
head clasper – small appendage on the forehead of mature male chimaeroid fishes.
G l o s s a r y 15<br />
histotrophy – form of embryonic nutrition where the developing embryos receive a<br />
lipid-rich histotroph, or uterine milk, usually delivered through extensions of the<br />
uterine wall called trophonemata.<br />
holotype – the specimen used in the original description of a species.<br />
hyomandibular pores – line of enlarged pores extending posteriorly from the mouth<br />
corners.<br />
infraorbital – area below the eye.<br />
interdorsal – space on dorsal surface between 1 st and 2 nd dorsal fins.<br />
interdorsal ridge – ridge of skin between dorsal fins.<br />
internarial space – distance between the nostrils.<br />
internasal flap – fleshy flap extending between nostrils, sometimes partly covering the<br />
mouth.<br />
interorbital space – area on top of head between eyes.<br />
jaws – part of mouth supporting teeth.<br />
juvenile – young fish, similar in form to adults but not yet sexually mature.<br />
keel – a fleshy ridge.<br />
lateral – referring to the sides.<br />
lateral-line canal – part of the sensory network of chimaeras; appearing as a distinct<br />
line.<br />
lateral ridges – fleshy expansions on sides of body.<br />
life cycle – the generalised history of a species from birth to death.<br />
lip – fleshy outer portion of jaws.<br />
longitudinal – lengthwise (opposite of transverse).<br />
longline – a fishing line bearing numerous baited hooks, typically set horizontally in<br />
water column.<br />
lunate – shaped like a crescent moon.<br />
margin – edge or rim.<br />
median – relating to the middle of an object.<br />
mesopelagic – living in open ocean at depths between 200 and 1000 m.
16 S h a r k s a n d R a y s o f B o r n e o<br />
mouth – opening through which food enters the alimentary canal.<br />
mucous canal – part of the sensory network of the head of chimaeras.<br />
multicuspid – a tooth or denticle with several cusps.<br />
nape – region of head above and behind eyes.<br />
nasal curtain – see internasal flap.<br />
nasoral grooves – furrow connecting mouth to the nostrils.<br />
nektonic – swimming <strong>org</strong>anisms capable of moving against a current and thus not<br />
only drifting.<br />
nictitating eyelid – a transparent, moveable membrane or inner eyelid that protects<br />
eye.<br />
nomenclature – the systematic naming of animals and plants.<br />
nostril – external opening of the nasal <strong>org</strong>ans.<br />
nuchal – pertaining to the nape.<br />
obtuse – broadly rounded or having a blunt end.<br />
oceanic – living in the open ocean.<br />
ocellus (pl. ocelli) – an eye-like spot or marking with a marginal ring.<br />
ocular – relating to the eye.<br />
oophagy – method of matrotrophic embryonic nutrition in viviparous species where<br />
the embryo feeds on unfertilised eggs in the uterus.<br />
oral – relating to the mouth.<br />
orbit – bony cavity in skull where eyeball is housed.<br />
oviparous – producing eggs that hatch after being deposited from the body of a<br />
pregnant female.<br />
papillae – a small fleshy projection.<br />
parasitic – living and feeding in or on another <strong>org</strong>anism to the detriment of that<br />
<strong>org</strong>anism.<br />
pearl thorn – nuchal thorn of stingrays shaped like an embedded pearl.<br />
pedicel – small stalk, usually of a denticle.<br />
pelagic – free-swimming in the seas, oceans or open water and not associated with the<br />
bottom.
G l o s s a r y 17<br />
plain – uniformly coloured, without a contrasting colour pattern.<br />
placental - method of matrotrophic embryonic nutrition in viviparous species where<br />
nutrients are transferred across the mother’s uterine epithelium, which is intimately<br />
connected with foetal tissue (placenta).<br />
plankton – small animals or plants that drift in open water.<br />
population – a biological unit that represents the individuals of a species living in a<br />
certain area.<br />
pore – small secretory or sensory opening.<br />
posterior – relating to hind of or rear end of an object.<br />
precaudal pit – a transverse or longitudinal notch on caudal peduncle just anterior to<br />
origin of caudal fin in some sharks.<br />
predator – feeding on other animals.<br />
pre-pelvic clasper – small, retractable appendages on each side just forward of the<br />
pelvic fins in mature male chimaeroid fishes.<br />
preorbital – before (anterior to) the eye.<br />
purse seine – a fishing net used to encircle surface-dwelling fish and land onto a boat.<br />
quadrangular – shaped with four distinct edges or marigns.<br />
reticulated – divided into a network.<br />
reticulations – markings in a general form of a net.<br />
rhomboidal – diamond-shaped.<br />
rostral cartilage – a gristly structure supporting the snout.<br />
rostral teeth – tooth-like projections on the sides of the snout of sawfishes and sawsharks.<br />
rostrum (adj. rostral) – a projecting snout.<br />
rounded – margin evenly convex.<br />
saddle – a blotch extending across dorsal surface from one side to another.<br />
salinity – the concentration of salt in water.<br />
school – a close aggregation of fish swimming in association with each other.<br />
scientific name – the formal binomial name of an <strong>org</strong>anism consisting of the genus<br />
and species names; only one valid scientific name exists per species.
18 S h a r k s a n d R a y s o f B o r n e o<br />
scythe-like – shaped like a scythe; long and narrowly curved.<br />
seine – a fishing net that hangs vertically in water column and encircles fish when its<br />
ends are drawn together.<br />
serrate – saw-like.<br />
snout – part of head in front of eyes.<br />
species – actually or potentially inter-breeding populations that are reproductively<br />
isolated from other populations.<br />
spine – a sharp projecting point.<br />
spiracle – a respiratory opening behind the eye in sharks and rays.<br />
spiracular fold – fold of skin present on the hind margin of the spiracular opening in<br />
some ray species.<br />
spot – a regularly shaped or rounded area of a colour different to adjacent areas.<br />
squalene – oil produced from the liver of some sharks.<br />
stellate – star-shaped.<br />
stinging spine – large, serrated bony structure on the tail of some rays.<br />
stripe – a contrasting longitudinal pattern in the form of a line.<br />
subcircular – almost circular.<br />
subequal – almost equal.<br />
substrate – the substance forming the bottom of the sea or ocean.<br />
subterminal – positioned near but not at end of an object.<br />
supraorbital crests – enlarged ridges above the eyes.<br />
sympatric – living together in the same geographic area.<br />
symphysis (adj. symphysial) – relating to medial junction of either the upper or lower<br />
jaw.<br />
synonym (adj. synonymous) – each of two or more scientific names of the same rank<br />
used to denote the same taxon.<br />
tail – part of fish between cloaca and origin of the caudal fin.<br />
taxono<strong>my</strong> – the science of classification of plants and animals.<br />
taxon – any formal taxonomic unit or category of <strong>org</strong>anisms (genus, species, etc.)
G l o s s a r y 19<br />
teeth – hard outgrowths on jaws, used for biting and masticating food.<br />
teleost – large group containing most bony fishes.<br />
tendril – a slender, curling barbel.<br />
terminal – located at or forming the end of something.<br />
thorn – large denticles on surface of a ray or skate.<br />
tip – the extremity of a part of a fish.<br />
tooth rows – horizontal rows of teeth in the jaws.<br />
total length – longest length of a fish, from snout tip to upper caudal tip or tail tip.<br />
trammel net – a three layered fishing net used for entangling fish.<br />
transverse – directed crosswise, across width (opposite of longitudinal).<br />
trawl net – fishing net which is dragged behind a boat.<br />
tricuspid tooth – tooth with 3 cusps.<br />
trunk – part of fish between head and tail; between fifth gill slit and cloaca.<br />
ventral – relating to the lower part or surface.<br />
vertebrate – animal having a vertebral column or backbone.<br />
viviparous – producing live young from within the body of the parent female.
20 S h a r k s a n d R a y s o f B o r n e o<br />
anterior<br />
eye<br />
spiracle<br />
snout tip<br />
gill opening<br />
dorsal-fin spine<br />
1 st dorsal fin<br />
2 nd dorsal fin<br />
precaudal pit<br />
posterior<br />
nostril<br />
mouth<br />
labial furrows<br />
pelvic fin anal fin<br />
caudal keel<br />
clasper (males)<br />
caudal fin<br />
structural features of sharks<br />
pectoral fin<br />
anterior margin<br />
apex<br />
spine<br />
posterior margin<br />
origin<br />
lobe<br />
free rear tip<br />
insertion<br />
inner margin<br />
shark dorsal fin<br />
barbel<br />
circumnarial groove<br />
nostril<br />
circumnarial fold<br />
oronasal groove<br />
upper labial furrow<br />
mouth<br />
symphysial groove<br />
lower labial furrow<br />
shark undersurface of head
G l o s s a r y 21<br />
upper origin<br />
dorsal margin<br />
upper lobe<br />
terminal lobe<br />
posterior tip<br />
terminal margin<br />
subterminal margin<br />
caudal fork<br />
subterminal notch<br />
upper postventral margin<br />
lower origin<br />
lower postventral margin<br />
shark caudal fin<br />
preventral margin<br />
lower lobe<br />
ventral tip<br />
ventral<br />
dorsal<br />
internasal flap<br />
mouth<br />
gill opening<br />
spiracle<br />
eye<br />
rostral cartilage<br />
shoulder<br />
pectoral fin<br />
cloaca<br />
pectoral fin insertion<br />
thorn<br />
pelvic fin<br />
caudal fin<br />
lateral tail fold<br />
clasper<br />
(male)<br />
2 nd dorsal fin<br />
1 st dorsal fin stinging spine<br />
structural features of rays
22 S h a r k s a n d R a y s o f B o r n e o<br />
nostril<br />
lobes<br />
internasal flap<br />
fringe<br />
papillae<br />
mouth<br />
ray nostrils and mouth (oronasal)<br />
enlarged thorn<br />
stinging spine<br />
dorsal fold<br />
thorn<br />
granulations<br />
ventral fold<br />
ray tail<br />
head clasper (male)<br />
spine<br />
1 st dorsal fin<br />
lateral line<br />
mucous canal<br />
eye<br />
2 nd dorsal fin<br />
caudal-fin<br />
upper lobe<br />
mouth<br />
gill opening<br />
pre-pelvic<br />
clasper (male)<br />
clasper<br />
(male)<br />
anal fin<br />
caudal filament<br />
caudal-fin<br />
lower lobe<br />
pectoral fin<br />
pelvic fin<br />
structural features of chimaerids
R u n n i n g h e a d 23<br />
Key to families and genera<br />
1. Single gill opening on each side of head<br />
(fig. 1) ..................................................<br />
............ Family Chimaeridae, Chimaeras<br />
fig. 1; 266<br />
5–7 gill openings on each side of head<br />
........................................................... 2<br />
fig. 1<br />
2. Body flattened, ray-like; gill openings on<br />
undersurface of head (except in Angel<br />
<strong>Sharks</strong>) ..................................................... 3<br />
Body more or less fusiform, shark-like;<br />
gill openings on sides of head ........... 17<br />
3. Gill openings partly on sides of head<br />
(fig. 2); pectoral fins very large, clearly<br />
detached from head (fig. 2) .................<br />
......... Family Squatinidae, Angel <strong>Sharks</strong><br />
fig. 3; 42<br />
Gill openings entirely on undersurface<br />
of head; pectoral fins wholly or partly<br />
joined to head .................................... 4<br />
4. Snout saw-like, flattened, armed with<br />
lateral teeth (fig. 4) .................................<br />
..................... Family Pristidae, Sawfishes<br />
Rostral teeth absent from basal quarter<br />
of saw (fig. 4); lower lobe of caudal fin<br />
large, more than half length of upper<br />
lobe (fig. 4) .......................... Anoxypristis<br />
fig. 4; 140<br />
Rostral teeth extending onto basal quarter<br />
of saw, almost to its base (fig. 5); lower<br />
lobe of caudal fin small, less than half<br />
length of upper lobe (fig. 5) .......... Pristis<br />
fig. 5; 142<br />
Snout not saw-like, no rostral teeth .... 5<br />
fig. 2<br />
fig. 3<br />
fig. 4<br />
fig. 5
24 S h a r k s a n d R a y s o f B o r n e o<br />
5. Two prominent dorsal fins (fig. 6); 1 st<br />
dorsal fin originating closer to insertion<br />
of pelvic fins than to tail tip (fig. 6) ...... 6<br />
0–2 dorsal fins; 1 st dorsal fin originating<br />
closer to tail tip than to insertion of pelvic<br />
fins when 2 fins are present (fig. 7) ..... 10<br />
6. Caudal fin with a well developed<br />
ventral lobe (fig. 8); pectoral and pelvic<br />
fins separated slightly, not touching<br />
(fig. 8) .............................................. 7<br />
Ventral lobe of caudal fin not prominent<br />
(fig. 6); pectoral and pelvic fins touching<br />
or overlapping (fig. 6) ........................ 8<br />
7. Head triangular (fig. 8); upper disc with<br />
small thorns; two spiracular folds .......<br />
.... Family Rhynchobatidae, Wedgefishes<br />
fig. 8; 148<br />
Head broadly rounded (fig. 9); upper<br />
disc with ridges lined with large thorns;<br />
no spiracular folds .................................<br />
................ Family Rhinidae, Shark Rays<br />
fig. 9; 146<br />
8. Snout triangular, forming an acute angle<br />
at tip (fig. 10); body surface rough with<br />
thorns or fine denticles; no electric<br />
<strong>org</strong>ans ...................................................<br />
... Family Rhinobatidae, Shovelnose Rays<br />
Anterior nasal aperture almost rectangular,<br />
very large (fig. 11); snout length more than<br />
5 times eye diameter .............Glaucostegus<br />
fig. 10; 154<br />
Anterior nasal aperture almost circular,<br />
relatively smaller (fig. 12); snout length less<br />
than 5 times eye diameter ........ Rhinobatos<br />
fig. 13; 158<br />
Snout broadly rounded (fig. 14); body<br />
surface entirely smooth; electric <strong>org</strong>ans<br />
present ................................................ 9<br />
fig. 6<br />
fig. 7<br />
fig. 8<br />
fig. 9<br />
fig. 10<br />
fig. 11 fig. 12<br />
fig. 13
K e y t o f a m i l i e s a n d g e n e r a 25<br />
9. 2 dorsal fins present (fig. 14); a deep<br />
groove around mouth; teeth extending<br />
onto outer surfaces of upper and lower<br />
jaws in most species ...............................<br />
............. Family Narcinidae, Numbfishes<br />
fig. 14; 160<br />
0–1 dorsal fins present (figs 15 and 16);<br />
a shallow groove around mouth; teeth<br />
not extending onto outer surfaces of<br />
upper and lower jaws in most species<br />
............... Family Narkidae, Sleeper Rays<br />
No dorsal fins present (fig. 15) ....... Temera<br />
fig. 15; 168<br />
One dorsal fin present (fig. 16) ...... Narke<br />
fig. 16; 166<br />
10. Pelvic fin divided into two distinct lobes<br />
(fig. 17); no enlarged stinging spine on tail<br />
......................................................... 11<br />
Pelvic fin with only one lobe (fig. 18);<br />
usually with 1 or more enlarged, serrated<br />
stinging spines (scar visible when spine<br />
absent) .............................................. 12<br />
11. Entire dorsal surface smooth (except<br />
for alar thorns of male); preorbital snout<br />
more than 8 times eye diameter (fig. 19);<br />
tail very short and thin, without dorsal<br />
fins (fig. 19) ..........................................<br />
..... Family Anacanthobatidae, Leg Skates<br />
fig. 19; 178<br />
Thorns or fine denticles present on dorsal<br />
surface; preorbital snout much less than 8<br />
times eye diameter (fig. 20); tail slender<br />
(but not filamentous), with 2 dorsal fins<br />
when undamaged (fig. 20) .....................<br />
........................... Family Rajidae, Skates<br />
fig. 20; 170<br />
12. Anterior part of head not extending<br />
forward beyond disc (fig. 21); eyes located<br />
fig. 14<br />
fig. 15<br />
fig. 16<br />
fig. 17 fig. 18<br />
fig. 19<br />
fig. 20
26 S h a r k s a n d R a y s o f B o r n e o<br />
dorsally and well inward from disc margin<br />
(fig. 21) ............................................ 13<br />
Anterior part of head extending forward<br />
beyond disc (fig. 22); eyes located laterally<br />
on side of head (fig. 22) ...................... 15<br />
13. Disc very broad, width more than 1.5<br />
times length (fig. 23); tail very short and<br />
filamentous (fig. 23) ..............................<br />
...... Family Gymnuridae, Butterfly Rays<br />
fig. 23; 238<br />
Disc narrower, width less than 1.5 times<br />
length; tail much longer and thicker ....<br />
........................................................ 14<br />
14. Caudal fin present (fig. 24); no thorns or<br />
tubercles on disc or tail .........................<br />
... Family Plesiobatidae, Giant Stingarees<br />
fig. 24; 180<br />
Caudal fin absent; central disc and dorsal<br />
surface of tail normally with some<br />
thorns or tubercles .................................<br />
................... Family Dasyatidae, Stingrays<br />
a. No skin folds on tail; base of tail narrow<br />
and typically rounded to slightly<br />
compressed in cross-section (fig. 25) ..... b<br />
Skin folds present on undersurface of<br />
tail, and sometimes on dorsal surface<br />
after sting; base of tail relatively broad,<br />
distinctly depressed (fig. 26) .................. c<br />
b. No stinging spine; many long, sharp<br />
thorns over entire disc ............ Urogymnus<br />
fig. 27; 236<br />
One or more stinging spines on tail<br />
(if lost, scar visible); no long, sharp<br />
thorns present over sides of disc<br />
(sometimes with low thorns near<br />
midline of disc) .................... Himantura<br />
fig. 28; 190<br />
fig. 21 fig. 22<br />
fig. 23<br />
fig. 24<br />
fig. 25 fig. 26<br />
fig. 27<br />
fig. 28<br />
c. Disc oval or subcircular; ventral skin fold<br />
tall, extending to tail tip ..................... d
K e y t o f a m i l i e s a n d g e n e r a 27<br />
Disc more or less quadrangular; ventral<br />
skin fold terminating well before tail tip<br />
when undamaged ................................ e<br />
d. Disc oval (fig. 29); dorsal surface with<br />
numerous blue spots over a brownish<br />
background (fig. 29); tail with a blue<br />
stripe along each side ................ Taeniura<br />
fig. 29; 232<br />
Disc subcircular (fig. 30); dorsal surface<br />
with fine black and white mottling (fig.<br />
30); no blue spots or stripes on body or<br />
tail ......................................... Taeniurops<br />
fig. 30; 234<br />
e. Anterior margin of disc uniformly<br />
convex (fig. 31); ventral surface dark<br />
greyish ........................... Pteroplatytrygon<br />
fig. 31; 230<br />
Anterior margin of disc angular (fig. 32);<br />
ventral surface mostly pale .................... f<br />
f. Distance from cloaca to stinging spine<br />
exceeding half of disc width; ventral skin<br />
fold relatively tall, its maximum height<br />
equal to or exceeding spiracle length ......<br />
............................................. Pastinachus<br />
fig. 32; 222<br />
Distance from cloaca to stinging spine<br />
less than half of disc width; ventral skin<br />
fold relatively low, its maximum height<br />
much less than spiracle length .............. g<br />
g. Tail banded black and white behind sting<br />
(fig. 33); blue-spotted with dark transverse<br />
band through eyes (fig. 33) ....... Neotrygon<br />
fig. 33; 220<br />
Tail not banded beyond sting (fig. 34); not<br />
blue-spotted and without dark transverse<br />
band through eyes (fig. 34) ......... Dasyatis<br />
fig. 34; 182<br />
15. A pair of long, paddle-like flaps<br />
situated laterally on front of head<br />
(fig. 35); teeth minute, in many rows<br />
................. Family Mobulidae, Devilrays<br />
fig. 30<br />
fig. 32<br />
fig. 34<br />
fig. 31<br />
fig. 29<br />
fig. 33
28 S h a r k s a n d R a y s o f B o r n e o<br />
Mouth terminal, located at end of snout<br />
tip ............................................... Manta<br />
fig. 35; 256<br />
Mouth subterminal, located on undersurface<br />
of head .......................... Mobula<br />
fig. 36; 258<br />
fig. 35<br />
No lateral, paddle-like processes on head,<br />
instead with a pair of broadly rounded<br />
lobes (fig. 37) or a single, fleshy subrostral<br />
lobe (fig. 38); teeth large and plate-like,<br />
fewer than 10 rows in each jaw ......... 16<br />
16. Margin of subrostral lobe with a deep<br />
central notch (fig. 37); floor of mouth<br />
without papillae ....................................<br />
... Family Rhinopteridae, Cownose Rays<br />
fig. 37; 252<br />
Margin of subrostral lobe rounded (fig.<br />
38); floor of mouth with fleshy papillae<br />
.......... Family Myliobatidae, Eagle Rays<br />
Posterior margin of internasal flap<br />
deeply notched (inverted V-shape) (fig.<br />
39); teeth in a single row in each jaw<br />
............................................... Aetobatus<br />
fig. 38; 242<br />
Posterior margin of internasal flap almost<br />
straight or only undulating slightly<br />
(fig. 40); teeth in more than one row in<br />
each jaw ............................. Aeto<strong>my</strong>laeus<br />
fig. 41; 246<br />
17. A single dorsal fin (fig. 42); 6 or 7 gill<br />
openings on each side of head (fig. 42)<br />
............ Family Hexanchidae, Cowsharks<br />
fig. 42; 36<br />
fig. 36<br />
fig. 37<br />
fig. 38<br />
fig. 39 fig. 40<br />
fig. 41<br />
2 dorsal fins; 5 gill openings on each<br />
side of head ..................................... 18<br />
18. Anal fin absent ................................ 19<br />
Anal fin present, sometimes small or<br />
fig. 42
K e y t o f a m i l i e s a n d g e n e r a 29<br />
obscure (situated close to caudal fin) ... 20<br />
19. Teeth in both jaws similar in shape and<br />
size (fig. 44); no subterminal notch on<br />
caudal fin (fig. 43) ...............................<br />
................... Family Squalidae, Dogfishes<br />
fig. 43; 38<br />
Teeth in upper jaw differing in shape<br />
and/or size to those of lower jaw (fig. 45);<br />
strong subterminal notch present<br />
(fig. 46) .................................................<br />
... Family Centrophoridae, Gulper <strong>Sharks</strong><br />
fig. 46; 40<br />
20. Head very broad, hammer-shaped, with<br />
very widely separated eyes (fig. 47) ........<br />
Family Sphyrnidae, Hammerhead <strong>Sharks</strong><br />
Lateral blades of head very broad, narrow<br />
and wing-like; width of head close to<br />
half of total length ................... Eusphyra<br />
fig. 47; 134<br />
Lateral blades of head much shorter and<br />
not wing-like; width of head less than<br />
40% of total length .................... Sphyrna<br />
fig. 48; 136<br />
fig. 43<br />
fig. 44 fig. 45<br />
fig. 46<br />
fig. 47<br />
Head much narrower, not hammershaped<br />
.............................................. 21<br />
21. Upper caudal-fin lobe equal to or longer<br />
than half total length (fig. 49); body<br />
without spots or bands ..........................<br />
....... ..Family Alopiidae, Thresher <strong>Sharks</strong><br />
fig. 49; 62<br />
Upper caudal-fin lobe much shorter<br />
than half total length (caudal fin also<br />
long in Zebra <strong>Sharks</strong> but their body<br />
spotted and/or banded) ................... 22<br />
22. Dorsal-fin spines present (fig. 50); medium<br />
to tall crest over eye (fig. 50) ..................<br />
fig. 48<br />
fig. 50<br />
fig. 49
30 S h a r k s a n d R a y s o f B o r n e o<br />
....... Family Heterodontidae, Hornsharks<br />
fig. 50; 44<br />
Dorsal-fin spines absent; no crest over<br />
eye ................................................... 23<br />
23. Whole mouth forward of front margin<br />
of eye (fig. 51) ................................... 24<br />
Mouth partly beneath or behind front<br />
margin of eye (fig. 52) ....................... 28<br />
fig. 51<br />
fig. 52<br />
24. Mouth very broad, terminal; caudal fin<br />
forked (fig. 53) .......................................<br />
... Family Rhincodontidae, Whale <strong>Sharks</strong><br />
fig. 53; 60<br />
Mouth smaller, subterminal; caudal fin<br />
not forked ...................................... 25<br />
fig. 53<br />
25. No fleshy lobe or groove on outer<br />
margin of nostril (fig. 54) .................. 26<br />
Fleshy lobe and groove present on outer<br />
margin of nostril (fig. 55) ................ 27<br />
26. Caudal fin very long, about equal to<br />
trunk length (fig. 56); ridges present along<br />
sides of body (fig. 56) ...........................<br />
... Family Stegostomatidae, Zebra <strong>Sharks</strong><br />
fig. 56; 58<br />
Caudal fin shorter, less than half trunk<br />
length (fig. 57); no ridges on body<br />
(fig. 57) ..... Family Ginglymostomatidae,<br />
Nurse <strong>Sharks</strong><br />
fig. 57; 56<br />
fig. 57<br />
fig. 54 fig. 55<br />
fig. 56<br />
27. Head and body strongly depressed<br />
(fig. 58); skin flaps present on sides of<br />
head (fig. 58) .........................................<br />
....... Family Orectolobidae, Wobbegongs<br />
fig. 58; 46<br />
Head and body cylindrical (fig. 59); no<br />
skin flaps on sides of head (fig. 59) ........<br />
fig. 59<br />
fig. 58
K e y t o f a m i l i e s a n d g e n e r a 31<br />
.......................... Family Hemiscylliidae,<br />
Longtail Carpetsharks<br />
fig. 59; 48<br />
28. Caudal fin almost symmetrical, lunate<br />
(fig. 60); a strong keel on either side of<br />
caudal peduncle (fig. 60) .......................<br />
........ Family Lamnidae, Mackerel <strong>Sharks</strong><br />
fig. 60; 64<br />
Caudal fin asymmetrical, heterocercal<br />
(fig. 61); caudal-peduncle keel either low<br />
or absent (fig. 61) ............................... 29<br />
29. 1 st dorsal-fin origin behind pelvic-fin<br />
origin ... Family Scyliorhinidae, Catsharks<br />
fig. 60<br />
fig. 61<br />
a. Upper labial furrows very long, more<br />
than 3 times spiracle diameter, mostly<br />
extending to level of front of eye (fig. 62)<br />
........................................................... b<br />
Upper labial furrows much shorter or<br />
rudimentary, when present much less than<br />
3 times spiracle diameter, never extending<br />
to level of front of eye (fig. 63) ............ c<br />
b. Anterior nasal flaps greatly expanded,<br />
reaching mouth (fig. 65); nasoral grooves<br />
present ............................... Atelo<strong>my</strong>cterus<br />
fig. 64; 68<br />
Anterior nasal flaps much shorter, smaller<br />
than nostrils, not reaching mouth (fig. 66);<br />
nasoral grooves absent ............. Apristurus<br />
fig. 67; 66<br />
c. 2 nd dorsal fin much smaller than 1 st<br />
dorsal fin (fig. 68); origin of 2 nd dorsal<br />
fin only slightly behind origin of anal fin<br />
(fig. 68); stomach inflatable ....................<br />
....................................... Cephaloscyllium<br />
fig. 68; 70<br />
Dorsal fins about equal in size (fig.<br />
69); origin of 2 nd dorsal fin behind<br />
midbase of anal fin (fig. 69); stomach not<br />
inflatable ................................ Halaelurus<br />
fig. 69; 72<br />
fig. 62 fig. 63<br />
fig. 64<br />
fig. 65 fig. 66<br />
fig. 67<br />
fig. 68<br />
fig. 69
32 S h a r k s a n d R a y s o f B o r n e o<br />
1 st dorsal-fin origin well in front of<br />
pelvic-fin base .................................. 30<br />
30. Precaudal pits absent (fig. 71); anterior<br />
margin of caudal fin smooth (fig. 71)<br />
............ Family Triakidae, Hound <strong>Sharks</strong><br />
fig. 70; 74<br />
Precaudal pits present (fig. 72); anterior<br />
margin of caudal fin usually rippled<br />
(fig. 72) ............................................ 31<br />
31. Spiracles present; posterior margin of<br />
2 nd dorsal fin deeply concave; intestine<br />
with spiral valves (fig. 73) ......................<br />
...... Family Hemigaleidae, Weasel <strong>Sharks</strong><br />
a. Lower teeth near symphysis with short,<br />
straight or weakly hooked cusps (fig. 74)<br />
that are concealed when mouth closed;<br />
gill slits small, less than twice eye length .. b<br />
Lower teeth near symphysis with long,<br />
strongly hooked cusps (fig. 75) that<br />
prominently protrude from mouth when<br />
closed; gill slits large, more than twice eye<br />
length ................................................. c<br />
b. Pelvic, dorsal and caudal fins not falcate<br />
(fig. 76); mouth long, narrowly arched;<br />
lower teeth near symphysis with erect<br />
cusps and slightly arched roots; cusplets<br />
present on lower teeth……….. Paragaleus<br />
fig. 76; 84<br />
Pelvic, dorsal and caudal fins strongly<br />
falcate (fig. 77); mouth very short, broadly<br />
arched; lower teeth near symphysis with<br />
erect cusps and highly arched roots; no<br />
cusplets on lower teeth ........... Hemigaleus<br />
fig. 77; 80<br />
c. Snout obtusely wedge-shaped in dorsoventral<br />
view; fins not falcate, posterior<br />
margins of pelvic and pectoral fins<br />
straight or slightly concave (fig. 78) .......<br />
.......................................... Chaenogaleus<br />
fig. 78; 78<br />
fig. 70<br />
fig. 71 fig. 72<br />
fig. 73<br />
fig. 74 fig. 75<br />
fig. 76<br />
fig. 77<br />
fig. 78
K e y t o f a m i l i e s a n d g e n e r a 33<br />
Snout bluntly rounded in dorsoventral<br />
view; fins strongly falcate, posterior<br />
margins of pelvic and pectoral fins deeply<br />
concave (fig. 79) ................... Hemipristis<br />
fig. 79; 82<br />
Spiracles absent (except in Tiger Shark);<br />
posterior margin of 2 nd dorsal fin not<br />
deeply concave; intestine with a scroll<br />
valve (fig. 80) ........................................<br />
... Family Carcharhinidae, <strong>Whaler</strong> <strong>Sharks</strong><br />
a. Caudal peduncle with lateral keels<br />
(fig. 81); spiracles present; upper labial<br />
furrows, reaching forward to front of eyes;<br />
teeth cockscomb-shaped (fig. 82)...........<br />
.............................................. Galeocerdo<br />
fig. 83; 114<br />
Caudal peduncle without lateral keels<br />
(weak ones present in Prionace); spiracles<br />
absent; upper labial furrows short, never<br />
reaching forward to in front of eyes;<br />
teeth not cockscomb-shaped .............. b<br />
b. 2 nd dorsal fin half or more height of 1 st<br />
dorsal fin ............................................ c<br />
2 nd dorsal fin less than half height of 1 st<br />
dorsal fin ............................................ e<br />
c. 1 st dorsal and upper caudal fin with<br />
distinct white tips (fig. 84); teeth with a<br />
single cusp and lateral cusplets (fig. 85) ...<br />
.............................................. Triaenodon<br />
fig. 84; 132<br />
1 st dorsal and upper caudal fin without<br />
obvious white tips; teeth with a single<br />
cusp and no lateral cusplets (fig. 86) ...... d<br />
d. 2 nd dorsal fin nearly as large as 1 st dorsal<br />
fin (fig. 87) ............................... Lamiopsis<br />
fig. 87; 120<br />
2 nd dorsal fin half to two thirds height of<br />
1 st dorsal fin (fig. 88) .................. Glyphis<br />
fig. 88; 116<br />
e. Head greatly depressed and trowelshaped<br />
(fig. 89); pectoral fins triangular<br />
fig. 79<br />
fig. 80<br />
fig. 81<br />
fig. 83<br />
fig. 84<br />
fig. 87<br />
fig. 88<br />
fig. 82<br />
fig. 85 fig. 86
34 S h a r k s a n d R a y s o f B o r n e o<br />
(fig. 89); 1 st dorsal-fin free rear tip<br />
almost over mid-base of pelvic fin<br />
(fig. 89) .................................. Scoliodon<br />
fig. 89; 130<br />
Head varying from conical to slightly<br />
depressed; pectoral fins narrower; 1 st<br />
dorsal-fin free rear tip over or slightly<br />
anterior to pelvic-fin origin ................. f<br />
f. 2 nd dorsal-fin origin well behind anal-fin<br />
origin (usually over or just anterior to analfin<br />
insertion) (fig. 90); posterior margin<br />
of anal fin nearly straight or shallowly<br />
concave (fig. 90); preanal ridges very<br />
long, subequal to anal-fin base length ... g<br />
2 nd dorsal-fin origin usually about<br />
opposite anal-fin origin (sometimes more<br />
posterior but always well anterior of analfin<br />
insertion) (fig. 91); posterior margin<br />
of anal fin deeply concave or deeply<br />
notched (fig. 91); preanal ridges short,<br />
about half anal-fin base or less .............. h<br />
h. Notch present at posterior edge of eye<br />
(fig. 93); 1 st dorsal-fin origin posterior<br />
to adpressed pectoral-fin free rear tips<br />
by a distance exceeding 4 th gill opening<br />
height (fig. 92) ......................... Loxodon<br />
fig. 92; 122<br />
Posterior rim of eye without a notch (fig.<br />
94); 1 st dorsal-fin origin over or only just<br />
posterior to adpressed pectoral-fin free<br />
rear tips (fig. 95) …….… Rhizoprionodon<br />
fig. 95; 126<br />
i. 1 st dorsal-fin base much closer to pelvicfin<br />
than pectoral-fin bases (fig. 96);<br />
colour brilliant dark blue above; weak keels<br />
present on caudal peduncle ......... Prionace<br />
fig. 96; 124<br />
1 st dorsal-fin base equidistant between<br />
pectoral and pelvic-fin bases (fig. 97);<br />
colour light to dark greyish, greyish brown<br />
or brownish above; no keels present on<br />
caudal peduncle .................. Carcharhinus<br />
fig. 97; 86<br />
fig. 89<br />
fig. 92<br />
fig. 93<br />
fig. 95<br />
fig. 96<br />
fig. 97<br />
fig. 90<br />
fig. 91<br />
fig. 94
SPECIES INFORMATION
36 S h a r k s a n d R a y s o f B o r n e o<br />
Bluntnose Sixgill Shark<br />
Hexanchus griseus (Bonnaterre, 1788)<br />
2 1<br />
3 4<br />
Other names: Sixgill Shark, Bull Shark, Mud Shark, Cow Shark (English), Cucut<br />
Meong, Hiu Tahu Putih (Indonesian), Yu Insang Enam (Malaysian)<br />
Identifying features:<br />
1 6 gill slits<br />
2 small, greenish eye<br />
3 single dorsal fin<br />
4 dorsal fin usually plain (occasionally with narrow white posterior margin)<br />
5 snout broadly rounded (viewed ventrally)<br />
6 lower jaw with 6 rows of large, comb-like teeth<br />
Size: To at least 480 cm; males and females mature at 285–315 and 420 cm respectively;<br />
born at 65–70 cm.<br />
Distribution: Almost circumglobal in tropical and temperate waters.<br />
Habitat and biology: Adults normally found near the bottom in deepwater to at<br />
least 2500 m; young sometimes enter shallow coastal bays. Viviparous, with yolk-sac<br />
dependency; gives birth to litters of 47–108 pups. Diet includes bony fishes, elasmobranchs,<br />
cephalopods and crustaceans, and adults also feed on larger bony fishes (e.g.<br />
billfishes), cetaceans and seals.<br />
Utilisation: Caught rarely so of minimal commercial value.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: None.<br />
References: Ebert (2003); White & Dharmadi (2010).
H e x a n c h i f o r m e s 37<br />
5<br />
Ventral head<br />
Upper tooth<br />
In Borneo: Probably widespread, but<br />
known only from near Layang-layang, off<br />
western Sabah.<br />
Hexanchidae (Cowsharks)<br />
Lower tooth<br />
6
38 S h a r k s a n d R a y s o f B o r n e o<br />
Western Highfin Spurdog<br />
Squalus altipinnis Last, White & Stevens, 2007<br />
4<br />
1<br />
5 4 3<br />
7<br />
Other names: None (English), none (Indonesian), Yu Minyak (Malaysian)<br />
Identifying features:<br />
1 pectoral-fin free rear tip not elongate<br />
2 snout narrowly pointed (viewed ventrally)<br />
3 2 nd dorsal fin relatively tall, upright<br />
4 dorsal fins with thick spines<br />
5 origin of 2 nd dorsal fin well posterior to pelvic-fin free rear tips<br />
6 dermal denticle crowns elevated on pedicels, broad, with 1 or 3 cusps<br />
7 posterior margin of caudal fin pale<br />
Size: To at least 71.5 cm; males probably smaller, mature at 54 cm; birth size unknown<br />
(late term embryos 19 cm long).<br />
Distribution: Possibly widespread in the Indo-Malay Archipelago, confirmed from<br />
northwestern Australia, Borneo, the Philippines and possibly Indonesia.<br />
Habitat and biology: Occurs near the bottom on the outer continental shelf and<br />
upper slope in 130–300 m. Viviparous, with yolk-sac dependency. Diet probably consists<br />
of small bony fishes, cephalopods and crustaceans.<br />
Utilisation: Caught occasionally by demersal longline fisheries and lobster pots operating<br />
in deepwater areas. Used for its meat when fresh, otherwise discarded.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: Squalus sp. 1: Compagno et al. (2005b).<br />
References: Last et al. (2007).
S q u a l i f o r m e s 39<br />
2<br />
Ventral head<br />
Late-term embryo (19 cm)<br />
In Borneo: Northern Borneo, from<br />
Sabah and northern Sarawak.<br />
7<br />
Squalidae (Dogfishes)<br />
6<br />
Flank denticle
40 S h a r k s a n d R a y s o f B o r n e o<br />
Smallfin Gulper Shark<br />
Centrophorus moluccensis Bleeker, 1860<br />
3<br />
4<br />
3<br />
1<br />
Other names: Endeavour Dogfish (English), Hiu Botol Danten, Hiu Taji, Hiu Senget,<br />
Cucut Botol (Indonesian), Yu Minyak (Malaysian)<br />
Identifying features:<br />
1 pectoral-fin free rear tip greatly extended<br />
2 snout relatively short and broadly rounded (when viewed ventrally)<br />
3 2 nd dorsal fin relatively small, half or less height of 1 st dorsal; both fins with short<br />
spines<br />
4 origin of 2 nd dorsal fin well posterior to pelvic-fin free tips<br />
5 dermal denticles flat and sessile, not elevated on pedicels<br />
6 teeth of upper and lower jaws differing in shape<br />
Size: To at least 100 cm; males and females mature at about 70 and 85 cm respectively;<br />
born at about 33 cm.<br />
Distribution: Widespread in the Indo–West Pacific, from South Africa to Japan and<br />
Australia.<br />
Habitat and biology: Occurs near the bottom on the outer continental shelf and<br />
upper slope at depths of 125–820 m. Viviparous, with yolk-sac dependency; gives<br />
birth to litters of two pups every two years; gestation period unknown. Diet consists<br />
primarily of bony fishes and cephalopods, but also elasmobranchs and crustaceans.<br />
Utilisation: Caught infrequently by demersal longline in deepwater. Used for its meat<br />
and fins (low value), and liver oil (very high value).<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: None.<br />
References: White & Dharmadi (2010).
S q u a l i f o r m e s 41<br />
2<br />
Ventral head<br />
Patch of flank denticles<br />
5<br />
In Borneo: Sparse records from off<br />
Sarawak and eastern Sabah.<br />
Upper teeth<br />
Lower teeth<br />
6<br />
Centrophoridae (Gulper <strong>Sharks</strong>)
42 S h a r k s a n d R a y s o f B o r n e o<br />
Ocellated Angelshark<br />
Squatina tergocellatoides Chen, 1963<br />
1<br />
6<br />
3<br />
5<br />
8 8<br />
8<br />
7<br />
Other names: None (English), Hiu Kodok (Indonesian), Yu Pari (Malaysian)<br />
Identifying features:<br />
1 pectoral fins large, broad and angular<br />
2 interorbital space concave<br />
3 no enlarged predorsal thorns<br />
4 nasal barbels and anterior nasal flaps moderately expanded and finely fringed<br />
5 1 st dorsal-fin origin behind pelvic-fin free rear tips<br />
6 dorsal colour pale yellowish brown<br />
7 several pairs of dark blotches or ocelli on pectoral and pelvic fins, and on tail<br />
8 dorsal fins and upper caudal-fin lobe with dark bases<br />
Size: To at least 101 cm.<br />
Distribution: Known only from the Taiwan Straits and off Borneo.<br />
Habitat and biology: A poorly known, demersal shark found on the outer<br />
continental shelf (~160 m depth off Sarawak). Viviparous, with yolk-sac dependency<br />
(lecithotrophic); one pregnant female (~100 cm) contained at least 3 mid-term embryos<br />
(~14 cm). Diet unknown, probably consists of fishes and crustaceans. Angelsharks are<br />
swift ambush predators that use their flexible necks and protruding jaws to snatch prey.
S q u a t i n i f o r m e s 43<br />
Utilisation: Caught opportunistically rather than being targeted. Used for its meat. Fins<br />
of no commercial value.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: None.<br />
References: None.<br />
Ventral head and abdomen<br />
2<br />
In Borneo: Off western Sabah and<br />
Sarawak.<br />
Squatinidae (Angelsharks)<br />
Front view of head<br />
4<br />
Anterior nasal flap (from front)
44 S h a r k s a n d R a y s o f B o r n e o<br />
Zebra Hornshark<br />
Heterodontus zebra (Gray, 1831)<br />
2<br />
1<br />
3<br />
1<br />
Other names: Zebra Bullhead Shark, Zebra Port Jackson Shark, Bullhead Shark<br />
(English), Hiu (Indonesian), Yu Kebut (Malaysian)<br />
Identifying features:<br />
1 dorsal fins preceded by strong spines<br />
2 head large and blunt with low crests over eyes<br />
3 pale with numerous dark, narrow bands<br />
4 nostrils connected to mouth by a groove<br />
5 mouth small, near snout tip<br />
6 anterior teeth small, pointed, multicuspid<br />
7 posterior teeth molar-like with medial ridges<br />
Size: To at least 122 cm; males mature from about 61 cm; hatch at about 15 cm.<br />
Distribution: Western Pacific, from Japan southwards through the Philippines, Borneo<br />
and Indonesia to northern Australia.<br />
Habitat and biology: Common, but poorly known; continental and insular shelves<br />
mostly down to about 50 m, but deeper off Australia (150–200 m). Biology poorly<br />
known; oviparous, with large, screw-shaped egg cases that are presumably lodged into<br />
rocky crevices during embryonic development. Diet unknown, probably consists of<br />
benthic invertebrates such as sea urchins and crustaceans.<br />
Utilisation: Rarely caught and of little commercial value. Meat sold as fillets; fins have<br />
no value.
H e t e r o d o n t i f o r m e s 45<br />
Conservation status: IUCN Red List: Least Concern.<br />
Local synonyms: Cestracion amboinensis Regan, 1906.<br />
References: None.<br />
4<br />
5<br />
Ventral head<br />
6 7<br />
In Borneo: Northern Borneo, including<br />
Sarawak and Sabah.<br />
Heterodontidae (Hornsharks)<br />
Anterior upper tooth<br />
Posterior upper tooth
46 S h a r k s a n d R a y s o f B o r n e o<br />
Indonesian Wobbegong<br />
Orectolobus leptolineatus Last, Pogonoski & White, 2010<br />
1<br />
2<br />
3<br />
4<br />
5<br />
Other names: Indo Wobbegong (English), Hiu Kodok, Hiu Lepang, Hiu Jenggot<br />
(Indonesian), Yu Misai (Malaysian)<br />
Identifying features:<br />
1 body strongly depressed<br />
2 nasal barbels branched<br />
3 dermal lobes present on side of head<br />
4 elaborate variegated pattern of dark saddles, and pale spots and fine reticulations<br />
5 anal fin present<br />
Size: To at least 120 cm; males mature at 85–88 cm and females by 94 cm.<br />
Distribution: Known from Indonesia, Borneo, the Philippines and Taiwan.<br />
Habitat and biology: Habitat and biology not well known; demersal on insular and<br />
continental shelves. Viviparous, with yolk-sac dependency; one pregnant female<br />
contained at least 4 mid-term embryos. Diet probably consists of demersal invertebrates<br />
and small fishes as with other wobbegong species.<br />
Utilisation: Not recorded during market surveys thus utilisation in the area not known<br />
but likely very minimal.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: Orectolobus cf ornatus (De Vis): Compagno et al. (2005b), White et al.<br />
(2006b); Orectolobus maculatus (Bonnaterre): Pickell & Siagian (2000), Yano et al. (2005).<br />
References: Last et al. (2010c).
O r e c t o l o b i f o r m e s 47<br />
2<br />
3<br />
Ventral head<br />
Embryo (14 cm)<br />
In Borneo: Known from a few specimens<br />
collected off southeastern Sabah<br />
(Semporna) and Sarawak.<br />
Orectolobidae (Wobbegongs)
48 S h a r k s a n d R a y s o f B o r n e o<br />
Indonesian Bambooshark<br />
Chiloscyllium hasseltii Bleeker, 1852<br />
1<br />
6<br />
3<br />
4<br />
4<br />
1<br />
5<br />
2<br />
Other names: Hasselt’s Bambooshark (English), Hiu Tekek (Indonesian), Yu-cicak<br />
Lampai, Yu Bodoh (Malaysian)<br />
Identifying features:<br />
1 body and tail relatively stout<br />
2 base of anal fin shorter than lower caudal-fin lobe<br />
3 no skin ridges on trunk<br />
4 posterior margins of dorsal fins straight to convex<br />
5 anal-fin origin close behind free rear tip of 2 nd dorsal fin<br />
6 adults lacking a colour pattern<br />
7 juveniles with black-edged saddle markings and blackish blotches on fins<br />
Size: To at least 78 cm; males mature at about 62 cm; hatch at about 9–12 cm.<br />
Distribution: Tropical Indo–West Pacific, from Myanmar and Vietnam to Indonesia<br />
and New Guinea.<br />
Habitat and biology: Little known, bottom-dwelling species, found inshore to<br />
depths to at least 12 m. Oviparous, depositing egg cases on benthic marine plants, with<br />
hatching occurring in December. Diet unknown, but presumably consists of bottomdwelling<br />
invertebrates, and possibly small fishes.<br />
Utilisation: Caught occasionally by gillnet, longline and trawl fisheries. Used for its<br />
meat.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: Chiloscyllium obscurum Gray, 1851; Chiloscyllium dolganovi Kharin,<br />
1987; Chiloscyllium indicum var. obscura Günther, 1870; Chiloscyllium hasselti Bleeker:<br />
Compagno (2001), Compagno et al. (2005a), Yano et al. (2005).<br />
References: Compagno (2001).
O r e c t o l o b i f o r m e s 49<br />
Ventral head<br />
In Borneo: Central western Borneo,<br />
including northwestern Kalimantan and<br />
Sarawak.<br />
6<br />
Hemiscylliidae (Longtail Carpetsharks)<br />
Dorsal head and pectoral fins<br />
7<br />
Juvenile (34.5 cm)
50 S h a r k s a n d R a y s o f B o r n e o<br />
Slender Bambooshark<br />
Chiloscyllium indicum (Gmelin, 1789)<br />
6<br />
1<br />
3<br />
4<br />
1<br />
4<br />
5<br />
2<br />
Other names: Ridgeback Bambooshark, Ridgeback Shark (English), Hiu Bongo,<br />
Cucut Dolok, Hiu Tekek (Indonesian), Yu-cicak Tembaga, Yu Bodoh, Yu Tokeh, Yu Pasir<br />
(Malaysian)<br />
Identifying features:<br />
1 body and tail very slender<br />
2 bases of anal fin and lower caudal-fin lobe about equal in length<br />
3 lateral skin ridges present on trunk<br />
4 posterior margins of dorsal fins straight to convex<br />
5 anal-fin origin well behind free rear tip of 2 nd dorsal fin<br />
6 adults usually with numerous dark spots and blotches (no bands); spots barely evident<br />
in largest individuals<br />
7 juveniles more intensely spotted with black-edged saddles<br />
Size: To at least 65 cm; males and females mature at about 39 and 43 cm respectively;<br />
free-swimming at 13 cm.<br />
Distribution: Tropical Indo–West Pacific, from Sri Lanka to Indonesia; possibly from<br />
the Arabian Sea to the Solomon Islands, and north to Japan.<br />
Habitat and biology: A common, but little known, bottom-dwelling species<br />
occurring inshore; often enters freshwater and brackish areas. Oviparous, depositing<br />
small oval egg cases. Diet unknown but presumably dominated by small invertebrates.<br />
Three colour morphs exist in the environs of the Kapuas Estuary but, based on molecular<br />
analyses, these appear to be a single species.<br />
Utilisation: Caught often at some inshore localities using demersal gillnets and trawls.<br />
Used mainly for its meat, but of limited value due to its small size.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: Chiloscyllium phymatodes Bleeker, 1852.<br />
References: Compagno (2001).
O r e c t o l o b i f o r m e s 51<br />
Ventral head<br />
6<br />
In Borneo: Patchy; recorded from<br />
southern and western Kalimantan and<br />
Sarawak.<br />
3<br />
Hemiscylliidae (Longtail Carpetsharks)<br />
Dorsal head and pectoral fins<br />
7<br />
Juvenile (19 cm)
52 S h a r k s a n d R a y s o f B o r n e o<br />
Whitespotted Bambooshark<br />
Chiloscyllium plagiosum (Bennett, 1830)<br />
1<br />
6<br />
3<br />
4<br />
1<br />
4<br />
5<br />
2<br />
Other names: None (English), Hiu Bongo, Cucut Dolok, Hiu Tekek (Indonesian), Yucicak<br />
Bintik, Yu Bodoh (Malaysian)<br />
Identifying features:<br />
1 body and tail relatively slender<br />
2 base of anal-fin much shorter than base of lower caudal-fin lobe<br />
3 weak or obscure lateral skin ridges on trunk<br />
4 posterior margins of dorsal fins straight to convex<br />
5 anal-fin origin well behind free rear tip of 2 nd dorsal fin<br />
6 dark bands and spots interspersed with pale blotches<br />
Size: To about 95 cm; males mature at 50–63 cm; hatch at 10–13 cm.<br />
Distribution: Tropical Indo–West Pacific, from Madagascar through to Indonesia, and<br />
north to Japan.<br />
Habitat and biology: A common inshore, bottom-dwelling shark found on coral<br />
reefs, in tidal pools, and amongst rock crevices. Oviparous, depositing oval egg cases<br />
(~8 cm long); in the northwestern Pacific, hatching occurs from June to August. Both<br />
sexes mature at ~4 years of age in Taiwan populations. Nocturnal, diet consists primarily<br />
of bottom-dwelling invertebrates and small fishes.<br />
Utilisation: Caught rarely by demersal gillnet and trawl fisheries operating inshore.<br />
Used mainly for its meat, but of limited value due to its small size. The meat is processed<br />
(fish ball, fish cake), and now sold as fillets in Kota Kinabalu and Sandakan fish markets.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: Chiloscyllium plagiosum var. interruptum Bleeker, 1852; Chiloscyllium<br />
margaritiferum Bleeker, 1863.<br />
References: Compagno (2001); Chen et al. (2007).
O r e c t o l o b i f o r m e s 53<br />
Ventral head<br />
In Borneo: South China Sea, from<br />
northwestern Kalimantan to northern<br />
Sabah.<br />
6<br />
Hemiscylliidae (Longtail Carpetsharks)<br />
Dorsal head and pectoral fins<br />
6<br />
Juvenile (13 cm)
54 S h a r k s a n d R a y s o f B o r n e o<br />
Brownbanded Bambooshark<br />
Chiloscyllium punctatum Müller & Henle, 1838<br />
1<br />
4<br />
4<br />
6<br />
3<br />
1<br />
5<br />
2<br />
Other names: Grey Carpetshark, Brownbanded Catshark, Spotted Catshark (English),<br />
Hiu Bongo, Hiu Batu, Hiu Gedok, Hiu Tekek (Indonesian), Yu-cicak Insang Putih,Yu<br />
Bodoh, Yu Tokeh, Yu Punai (Malaysian)<br />
Identifying features:<br />
1 body and tail moderately slender<br />
2 base of anal-fin much shorter than base of lower caudal-fin lobe<br />
3 no skin ridges on trunk<br />
4 posterior margins of dorsal fins straight or distinctly concave<br />
5 anal-fin origin over or just behind free rear tip of 2 nd dorsal fin<br />
6 adults plain coloured or with faint brownish bands<br />
7 juveniles with dark transverse bands usually with a scattering of small dark spots<br />
Size: To at least 132 cm (144 cm in captivity); males and females mature at 67–72 cm<br />
and by 68 cm respectively; hatch at 13–18 cm.<br />
Distribution: Tropical Indo–West Pacific, from the east coast of India to Australia and<br />
New Guinea, and north to Japan.<br />
Habitat and biology: A very common, inshore bottom-dwelling shark living in tidal<br />
pools on coral reefs, on muddy banks, and amongst mangroves and seagrasses; from the<br />
intertidal zone to a depth of 85 m or more. Oviparous, depositing rounded egg cases<br />
(11 by 5 cm); in captivity, hatching occurs between 90 and 153 days afterward. Diet<br />
consists primarily of bottom-dwelling invertebrates and small fishes. Can survive for<br />
many hours out of water.<br />
Utilisation: Caught often by demersal gillnet, longline and trawl fisheries operating in<br />
insular and continental shelf waters. Used for its meat.<br />
Conservation status: IUCN Red List: Near Threatened.
O r e c t o l o b i f o r m e s 55<br />
Local synonyms: None.<br />
References: Compagno (2001).<br />
Ventral head<br />
In Borneo: Southern and western<br />
Kalimantan, Sarawak and Sabah.<br />
Hemiscylliidae (Longtail Carpetsharks)<br />
Dorsal head and pectoral fins<br />
7<br />
Sub-adult (51 cm)
56 S h a r k s a n d R a y s o f B o r n e o<br />
Tawny Nurse Shark<br />
Nebrius ferrugineus (Lesson, 1830)<br />
3<br />
5<br />
4<br />
4<br />
1<br />
Other names: Tawny Shark, Spitting Shark, Sleepy Shark, Madame X (English), Hiu<br />
Gedebong, Hiu Gedok, Hiu Bisu (Indonesian), Yu Semilang, Yu Bodoh (Malaysian)<br />
Identifying features:<br />
1 caudal fin elongate, asymmetrical, its length about one third of total length<br />
2 nostrils near tip of snout, with short barbels and nasoral grooves<br />
3 spiracle much smaller than eye<br />
4 dorsal fins similar in size, tips angular, close to tail<br />
5 body colour plain, yellowish to greyish brown<br />
Size: To at least 320 cm; males and females mature at about 225 and 230 cm respectively;<br />
born at 40–60 cm.<br />
Distribution: Widespread throughout the Indo–West and Central Pacific.<br />
Habitat and biology: A demersal shark living on coral and rocky reefs, and over<br />
sand flats, from the intertidal zone to at least 70 m depth. Viviparous, with yolk-sac<br />
dependency (in Japan, reported to be oophagous with small litters); retains up to 32<br />
egg cases that hatch inside the mother, giving birth to live pups. Sluggish and mostly<br />
nocturnal, usually resting in small groups near caves and rocky crevices during the day.<br />
Diet includes a variety of demersal invertebrates as well as small reef fishes; uses its<br />
pharynx as a powerful suction pump to extract prey from rocky crevices.<br />
Utilisation: Not recorded during market surveys thus utilisation in the area not known.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Ginglymostoma rueppellii Bleeker, 1852; Nebrius concolor Rüppell 1837.<br />
References: None.
O r e c t o l o b i f o r m e s 57<br />
2<br />
Upper tooth<br />
Lower tooth<br />
Ventral head<br />
4<br />
In Borneo: Uncommon, not observed in<br />
surveys, but known to occur on coral reefs<br />
in the Sulu Sea (Sipadan Islands) and Perak<br />
(Peninsular Malaysia). Unverified record<br />
from dive operator in Kota Kinabalu.<br />
4<br />
Ginglymostomatidae (Nurse <strong>Sharks</strong>)<br />
Lateral precaudal tail region
58 S h a r k s a n d R a y s o f B o r n e o<br />
Zebra Shark<br />
Stegostoma fasciatum (Hermann, 1783)<br />
5<br />
1<br />
4<br />
3<br />
Other names: Leopard Shark (English), Hiu Belimbing, Kluyu Blimbingan<br />
(Indonesian), Yu Rimau, Yu Kebut, Yu Cicak, Yu Tokeh (Malaysian)<br />
Identifying features:<br />
1 colour pattern yellowish brown with numerous, dark brown spots in adults<br />
2 dark brown with vertical white bars and spots in juveniles (smaller than 70 cm)<br />
3 caudal fin very long, blade-like<br />
4 prominent ridges on dorsal surface and sides<br />
5 spiracle similar in size to eye<br />
Size: To at least 235 cm (reports of 354 cm need validation); males and females mature<br />
at about 145–185 and 170 cm respectively; hatch at about 20–36 cm.<br />
Distribution: Tropical Indo–West Pacific, from southeastern Africa to New Caledonia<br />
and Japan.<br />
Habitat and biology: A common inshore, demersal shark found over coral reefs and<br />
soft bottoms in shallow waters to at least 40 m. Oviparous; their large egg cases (13–17<br />
cm long, 8 cm wide), which are dark brown to purplish black with longitudinal striations,<br />
are anchored to the substrate by lateral masses of hair-like fibres. Diet consists<br />
primarily of gastropods and bivalves, but also crustaceans and small fishes. Active<br />
mostly at night, resting on the bottom during day.<br />
Utilisation: Used primarily for its meat and skin (exported to Thailand for leather).<br />
Protected under the Malaysian Fisheries Act, so catches are opportunistic and landings<br />
not reported.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Squalus pantherinus Kuhl & van Hasselt in Bleeker, 1852 (name
O r e c t o l o b i f o r m e s 59<br />
mentioned in synon<strong>my</strong> with S. fasciatum); Scyllia quinquecornuatum van Hasselt, 1823;<br />
Squalus tigrinus Forster, 1781; Stegostoma varium Garman, 1913.<br />
References: None.<br />
Ventral head<br />
Lower tooth<br />
Upper tooth<br />
In Borneo: Western and northern<br />
Borneo, including Sarawak, Sabah and<br />
north-west and north-east Kalimantan.<br />
Stegostomatidae (Zebra <strong>Sharks</strong>)<br />
2<br />
Juvenile (49.5 cm)
60 S h a r k s a n d R a y s o f B o r n e o<br />
Whale Shark<br />
Rhincodon typus Smith, 1828<br />
1<br />
6<br />
5<br />
4<br />
3<br />
Other names: None (English), Hiu Paus (Indonesian), Yu Paus (Malaysian)<br />
Identifying features:<br />
1 head very broad and flattened<br />
2 adults huge, attaining 12 m or more in length<br />
3 mouth very wide, almost terminal on head<br />
4 caudal peduncle depressed, with strong fleshy keels on sides<br />
5 prominent ridges on dorsal surface and sides<br />
6 dorsal and lateral surfaces with numerous crea<strong>my</strong> white spots between pale bars and<br />
stripes<br />
Size: To at least 12 m, but recent studies suggest lengths of up to 18 m; males and<br />
females mature at 300–400 and >760 cm respectively; born at about 40–64 cm.<br />
Distribution: Cosmopolitan in all tropical and warm temperate seas.<br />
Habitat and biology: The whale shark is the largest living fish. Epipelagic, oceanic<br />
and coastal, sometimes venturing into atoll lagoons; highly migratory, occurring<br />
singly or in large aggregations. Viviparous, with yolk-sac dependency, although was long<br />
thought to be oviparous as it retains egg cases in utero until pups hatch; a pregnant female<br />
caught off Taiwan had 300 pups nearing full term. Diet includes a variety of planktonic<br />
and nektonic prey. Ecotourism ventures have been established in many countries to take<br />
advantage of some of the predictable aggregations.<br />
Utilisation: Caught irregularly, and somewhat opportunistically, by traditional fishers<br />
using gillnets and harpoons. Used for its fins (extremely valuable as a display item) and<br />
meat. Population declines due to overfishing reported from the Philippines, Taiwan,<br />
Maldives and India.<br />
Conservation status: IUCN Red List: Vulnerable; Appendix II of CITES (to ensure<br />
that international trade is sustainable) and Appendix II of the Convention on Migratory<br />
Species (to encourage international management).
O r e c t o l o b i f o r m e s 61<br />
Local synonyms: Rhiniodon typus Smith, 1829.<br />
References: None.<br />
1<br />
3<br />
Upper tooth<br />
In Borneo: Recorded from northern<br />
and western Sabah and northwestern<br />
Kalimantan, but probably more widely<br />
distributed. Seasonal in Sabah, usually<br />
from February to April.<br />
Rhincodontidae (Whale <strong>Sharks</strong>)<br />
Lower tooth
62 S h a r k s a n d R a y s o f B o r n e o<br />
Pelagic Thresher<br />
Alopias pelagicus Nakamura, 1935<br />
1<br />
2<br />
4<br />
5<br />
3<br />
Other names: None (English), Hiu Monyet, Hiu Tikus, Cucut Pedang, Tikusan<br />
(Indonesian), Yu Ekor Panjang (Malaysian)<br />
Identifying features:<br />
1 upper lobe of caudal fin nearly as long as rest of body<br />
2 head profile arched between eyes, no deep grooves on nape<br />
3 1 st dorsal fin closer to pectoral-fin rear tip than pelvic-fin base<br />
4 eye relatively large, almost central on side of head<br />
5 white part of belly not extending over pectoral-fin base<br />
Size: To at least 390 cm; males and females mature at about 245–270 and 265–290 cm<br />
respectively; born at about 130–160 cm.<br />
Distribution: Widespread in the tropical and subtropical Indo–Pacific.<br />
Habitat and biology: Oceanic, usually well offshore, from the surface to at least<br />
150 m depth. Viviparous, with oophagy, but no evidence of adelphophagy; gives birth to<br />
litters of two (one per uterus) after an unknown gestation period; no reproductive<br />
seasonality with females giving birth throughout the year. Males and females mature<br />
at 7–8 and 8–9 years respectively. Diet poorly known but presumably consists of small<br />
fishes and cephalopods. Possibly able to maintain a body temperature warmer than the<br />
surrounding seawater.
L a m n i f o r m e s 63<br />
Utilisation: Caught by the tuna and shark longline, and tuna drift net fisheries in deep<br />
oceanic waters. Used for its fins (high value), meat (salted), skins and cartilage.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: None.<br />
References: White (2007b).<br />
Ventral head<br />
In Borneo: Uncommon, South China<br />
Sea off Sabah and also the Natuna Islands<br />
off Sarawak; possibly more widespread.<br />
Alopiidae (Thresher <strong>Sharks</strong>)<br />
Upper tooth<br />
Lower tooth
64 S h a r k s a n d R a y s o f B o r n e o<br />
Shortfin Mako<br />
Isurus oxyrinchus Rafinesque, 1810<br />
3<br />
1<br />
2<br />
Other names: Mako Shark, Blue Pointer, Mackerel Shark, Snapper Shark (English),<br />
Hiu Tenggiri, Hiu Anjing, Hiu Mako, Hiu Kakap (Indonesian), Jerung-mako Sirip<br />
Pendek, Yu Jerung (Malaysian)<br />
Identifying features:<br />
1 large lateral keel on either side of the caudal peduncle<br />
2 pectoral fins short, their length less than head length<br />
3 eye relatively small<br />
4 snout sharply pointed (viewed ventrally), its undersurface white<br />
5 long slender, pointed teeth (smooth edged and curved with bent tips) protruding<br />
from mouth<br />
Size: To at least 390 cm; males and females mature at about 185–195 and 250–280 cm<br />
respectively; born at about 60–70 cm.<br />
Distribution: Cosmopolitan in all tropical and temperate seas.<br />
Habitat and biology: Epipelagic and oceanic, from the surface to at least 650 m<br />
depth; occasionally found close inshore. Viviparous, with oophagy and possibly<br />
adelphophagy; gives birth to litters of 10–18 pups (maximum 25) after a 15–18 month<br />
gestation period, with a 3 year reproductive cycle. Males and females mature at 8 and 18<br />
years respectively. Diet consists primarily of small to very large fishes, including<br />
elasmobranchs, cephalopods and occasionally marine mammals. Potentially<br />
dangerous to humans, known to attack boats; considered to be the fastest swimming<br />
shark.
L a m n i f o r m e s 65<br />
Utilisation: Caught occasionally by tuna and shark longline fisheries. Used for its high<br />
quality meat, fins (high value in adults), jaws (highly prized), skin and cartilage.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Oxyrhina glauca Müller & Henle, 1839.<br />
References: White (2007b).<br />
4<br />
5<br />
Ventral head<br />
In Borneo: Only recorded off Sabah, but<br />
almost certainly more widespread.<br />
Lamnidae (Mackerel <strong>Sharks</strong>)<br />
Upper tooth<br />
5<br />
Lower tooth
66 S h a r k s a n d R a y s o f B o r n e o<br />
Bigfin Catshark<br />
Apristurus platyrhynchus (Tanaka, 1909)<br />
6<br />
5<br />
4<br />
3<br />
2 1<br />
Other names: Spatulasnout Catshark (English), none (Indonesian), none (Malaysian)<br />
Identifying features:<br />
1 anal fin low and very long<br />
2 pectoral fins large, reaching almost to pelvic fins<br />
3 2 nd dorsal fin much larger than 1 st dorsal fin<br />
4 uniformly greyish to brownish<br />
5 gill slits and naked areas on fins black<br />
6 snout moderately long and flattened<br />
7 labial furrows very long<br />
8 anterior nasal flaps not greatly expanded, not reaching mouth and smaller than<br />
nostrils<br />
Size: To at least 71 cm; both sexes mature by about 60 cm.<br />
Distribution: Patchy in the Western Pacific, from Australia (including the Norfolk<br />
Ridge), Borneo, Philippines and Japan.<br />
Habitat and biology: A deepwater catshark living near the bottom on the continental<br />
slope at depths of 400–1080 m. Oviparous, but biology and diet unknown, presumably<br />
consisting of small invertebrates and bony fishes.<br />
Utilisation: Unknown; rarely encountered.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: Pentanchus verweyi Fowler, 1934; Apristurus verweyi (Fowler).<br />
References: Kawauchi et al. (2008).
C a r c h a r h i n i f o r m e s 67<br />
8<br />
7<br />
Ventral head<br />
In Borneo: Known only from off<br />
Sipadan Island, in the Celebes Sea<br />
(eastern Sabah).<br />
Scyliorhinidae (Catsharks)<br />
Flank denticles
68 S h a r k s a n d R a y s o f B o r n e o<br />
Coral Catshark<br />
Atelo<strong>my</strong>cterus marmoratus (Bennett, 1830)<br />
1<br />
1<br />
3<br />
2<br />
Other names: None (English), Hiu Tokek, Cucut Tokek (Indonesian), Yu Cicak, Yu<br />
Tokeh, Yu Pendek (Malaysian)<br />
Identifying features:<br />
1 dorsal fins large, subequal in size, angled rearwards, with obvious white tips<br />
2 covered with numerous light grey and white spots; saddles obsolete<br />
3 prominent white stripe on side of head through gill slits<br />
4 labial furrows very long<br />
5 anterior nasal flaps greatly enlarged, extending to mouth<br />
Size: To at least 70 cm; both sexes mature at about 47–55 cm.<br />
Distribution: Tropical Indo–West Pacific, from Pakistan to New Guinea and southern<br />
China and Taiwan.<br />
Habitat and biology: A common, inshore catshark found in crevices and holes on<br />
rocky reefs. Oviparous, laying pairs of egg cases onto the substrate; egg cases elongate<br />
(6–8 cm long, 2 cm wide), brown, with two constricted waists and tendrils only at one<br />
end. Diet unknown, but presumably dominated by small invertebrates.<br />
Utilisation: Caught occasionally by fishers operating over coral reefs; probably<br />
adversely affected by dynamite fishing. Utilised for its meat but of limited value due to<br />
its small size; its fins have no value.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: Scyllium marmoratum Bennett, 1830.<br />
References: Bor et al. (2003); White (2007a).
C a r c h a r h i n i f o r m e s 69<br />
5<br />
4<br />
Ventral head<br />
In Borneo: Coastal waters of Sabah and<br />
Sarawak.<br />
Scyliorhinidae (Catsharks)<br />
Dorsal head and pectoral fins
70 S h a r k s a n d R a y s o f B o r n e o<br />
Sarawak Swellshark<br />
Cephaloscyllium sarawakensis Yano, Ahmad & Gambang, 2005<br />
6<br />
2<br />
1<br />
3<br />
Other names: Sarawak Pyg<strong>my</strong> Swell Shark, Sarawak Pyg<strong>my</strong> Swellshark (English), none<br />
(Indonesian), Yu-buntal Sarawak, Yu Buncit, Yu Kembong, Yu Buntal (Malaysian)<br />
Identifying features:<br />
1 2 nd dorsal fin much smaller than 1 st dorsal fin, its origin only slightly behind analfin<br />
origin<br />
2 stomach inflatable<br />
3 no crest of enlarged denticles along dorsal caudal-fin margin<br />
4 no labial furrows<br />
5 anterior nasal flaps short, not reaching mouth<br />
6 colour pattern relatively simple, consisting of narrow dark saddles and large blotches<br />
on sides<br />
Size: To at least 48 cm; females and males appear to be mature by 32 and 35 cm<br />
respectively.<br />
Distribution: Tropical northwestern Pacific, from Borneo to Hainan Island, southern<br />
China.<br />
Habitat and biology: A recently described, demersal species found on the outer shelf<br />
at depths of about 120–165 m. Oviparous, depositing smooth, oval-shaped egg cases<br />
9–10 cm long by ~3 cm wide. Diet unknown, probably mainly small invertebrates and<br />
fishes. Stomach inflatable, filling with air or water if threatened.<br />
Utilisation: Bycatch of trawl fisheries but of limited value for food.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: Cephaloscyllium circulopullum Yano, Ahmad & Gambang, 2005;<br />
Cephaloscyllium parvum Inoue & Nakaya, 2006.<br />
References: Schaaf-Da Silva & Ebert (2008).
C a r c h a r h i n i f o r m e s 71<br />
5<br />
4<br />
Ventral head<br />
Egg case<br />
In Borneo: South China Sea, off Sarawak.<br />
Scyliorhinidae (Catsharks)<br />
Dorsal head and pectoral fins
72 S h a r k s a n d R a y s o f B o r n e o<br />
Indonesian Speckled Catshark<br />
Halaelurus maculosus White, Last & Stevens, 2007<br />
2<br />
1<br />
1<br />
3 4<br />
Other names: None (English), Hiu Tokek (Indonesian), Yu Bodoh (Malaysian)<br />
Identifying features:<br />
1 dorsal fins of similar size<br />
2 clusters of small blackish spots on and between brownish saddles<br />
3 whitish ventrally<br />
4 pelvic-fin inner margins of adult males not joined above claspers<br />
5 upper labial furrows barely noticeable<br />
6 anterior nasal flaps short, not reaching mouth<br />
Size: To at least 53 cm; males mature at 36–40 cm.<br />
Distribution: Known from Indonesia, the Philippines and Malaysia.<br />
Habitat and biology: A recently described, demersal species; probably reef-dwelling<br />
on the outer continental shelf. Biology poorly known; oviparous, females depositing 6–<br />
12 oval-shaped egg cases. Diet unknown, but probably dominated by small invertebrates<br />
and fishes.<br />
Utilisation: Bycatch of trawl fisheries, used for its meat but of limited value due to its<br />
small size.<br />
Conservation status: IUCN Red List: Least Concern.<br />
Local synonyms: Halaelurus cf. buergeri (Müller & Henle): White et al. (2006b);<br />
Halaelurus buergeri (Müller & Henle): Yano et al. (2005); Halaelurus sp. 1: White (2007a).<br />
References: White (2007a); White et al. (2007).
C a r c h a r h i n i f o r m e s 73<br />
6<br />
5<br />
Ventral head<br />
Egg case<br />
In Borneo: Known only from off<br />
Sarawak.<br />
Scyliorhinidae (Catsharks)<br />
Dorsal head and anterior trunk
74 S h a r k s a n d R a y s o f B o r n e o<br />
Starspotted Smoothhound<br />
Mustelus manazo Bleeker, 1854<br />
5<br />
4<br />
3<br />
1<br />
2<br />
Other names: Gum<strong>my</strong> Shark, Japanese Smoothhound (English), Hiu Kacang, Hiu Air,<br />
Cucut Londer (Indonesian), Yu-jaras Bintik, Yu Jaras (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal fin plain or with a dusky tip<br />
2 caudal fin often with white posterior margin or tip<br />
3 sides with numerous small white spots (sometimes absent or only near lateral line)<br />
4 1 st dorsal-fin origin well behind pectoral-fin base<br />
5 eyes dorsolateral on head, with ridge beneath<br />
6 internarial width 1–2 times nostril width<br />
7 upper labial furrow much longer than lower furrow<br />
8 teeth in both jaws broad and blunt, not strongly compressed<br />
Size: To at least 117 cm; both sexes mature at 62–70 cm; born at about 30 cm.<br />
Distribution: Northwestern Pacific from Malaysia to southern Siberia; records from<br />
Kenya in the Western Indian Ocean require validation.<br />
Habitat and biology: Demersal on soft bottoms of the continental shelf and upper<br />
slope, including well inshore. Biology of Japanese and Taiwanese populations well<br />
studied. Viviparous, with histotrophy (no yolk sac-placenta as in some other members<br />
of the genus); gives birth to litters of 1–22 pups (average 5) after about a 10 month<br />
gestation. Fast growing with both sexes maturing at 3–4 years of age. Feeds<br />
predominantly on demersal invertebrates, mostly crustaceans.<br />
Utilisation: Caught rarely by trawlers. Used for its meat and fins, but of limited value.<br />
Conservation status: IUCN Red List: Data Deficient.
C a r c h a r h i n i f o r m e s 75<br />
Local synonyms: Mustelus mosis Hemprich & Ehrenberg: Yano et al. (2005).<br />
References: None.<br />
6<br />
7<br />
8<br />
Ventral head<br />
In Borneo: Known from the South<br />
China Sea, off Sarawak and Sabah.<br />
Triakidae (Houndsharks)
76 S h a r k s a n d R a y s o f B o r n e o<br />
Whitefin Smoothhound<br />
Mustelus widodoi White & Last, 2006<br />
1<br />
5<br />
4<br />
3<br />
2<br />
2<br />
Other names: None (English), Hiu Kacang, Hiu Air, Cucut Londer (Indonesian), Yu<br />
Jaras (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal fin with a prominent white tip<br />
2 2 nd dorsal fin and caudal-fin upper lobe with distinct black tips<br />
3 sides lacking white spots<br />
4 1 st dorsal-fin origin well behind pectoral-fin base<br />
5 eyes dorsolateral on head, with ridge beneath<br />
6 internarial width 1–2 times nostril width<br />
7 lower labial furrow subequal to or slightly longer than upper furrow<br />
8 teeth in both jaws broad and blunt, not strongly compressed<br />
Size: To at least 110 cm; males mature at 83–89 cm.<br />
Distribution: Southern Indonesia (Java, Bali, Lombok and possibly Sumatra) and off<br />
Malaysian Borneo.<br />
Habitat and biology: Biology and habitat largely unknown. Demersal on the midcontinental<br />
shelf to upper slope in depths greater than 60 m. Reproductive strategy<br />
unknown; either viviparous, with histotrophy or viviparous, with a yolk sac-placenta as<br />
in other members of the genus. Diet unknown, presumably consisting of small fishes<br />
and invertebrates as in other members of the genus.<br />
Utilisation: Marketed infrequently, probably more abundant in the deeper parts of the<br />
South China Sea. Used for its meat and fins, but of limited use due to its rarity.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: Mustelus sp. 1: White et al. (2006b).<br />
References: White & Last (2006); White (2007a).
C a r c h a r h i n i f o r m e s 77<br />
6<br />
8<br />
7<br />
Ventral head<br />
In Borneo: Known only from northwestern<br />
Sabah.<br />
Triakidae (Houndsharks)
78 S h a r k s a n d R a y s o f B o r n e o<br />
Hooktooth Shark<br />
Chaenogaleus macrostoma (Bleeker, 1852)<br />
3<br />
1<br />
2<br />
3<br />
3 3<br />
Other names: None (English), Hiu Kacang, Hiu Pilus (Indonesian), Yu Gigi Cangkuk<br />
(Malaysian)<br />
Identifying features:<br />
1 spiracles small<br />
2 gill slits large, more than twice eye length<br />
3 pelvic and dorsal fins, and ventral caudal-fin lobe, weakly falcate<br />
4 snout obtusely wedge-shaped (viewed from underneath)<br />
5 teeth protruding prominently when mouth closed<br />
6 front lower teeth with long, strongly hooked cusps<br />
Size: To at least 100 cm; males mature at about 68 cm; born at about 20 cm or more.<br />
Distribution: Tropical Indo–West Pacific, from the Gulf of Aden to southern Indonesia,<br />
and north to China.<br />
Habitat and biology: Occurs on or near the bottom near the coast to depths of at<br />
least 60 m. Viviparous, with a yolk-sac placenta; gives birth to litters of 4 pups after an<br />
unknown gestation period. Diet probably consists of small fishes, cephalopods and<br />
crustaceans.<br />
Utilisation: Caught rarely by inshore gillnet and longline fisheries. Used for its meat<br />
and fins but of limited value due to its small size.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: None.<br />
References: None.
C a r c h a r h i n i f o r m e s 79<br />
4<br />
5<br />
Upper tooth<br />
Lower tooth<br />
Ventral head<br />
6<br />
In Borneo: Uncommon, recorded<br />
from Sarawak, Sabah and northeastern<br />
Kalimantan, but probably more widely<br />
distributed.<br />
Hemigaleidae (Weasel <strong>Sharks</strong>)
80 S h a r k s a n d R a y s o f B o r n e o<br />
Sicklefin Weasel Shark<br />
Hemigaleus microstoma Bleeker, 1852<br />
3<br />
1<br />
2<br />
3<br />
3<br />
3<br />
Other names: Weasel Shark (English), Hiu Kacang, Hiu Pilus (Indonesian), Yu Bintik<br />
Putih, Yu Pasir (Malaysian)<br />
Identifying features:<br />
1 spiracles small<br />
2 gill slits small, less than twice eye length<br />
3 pelvic and dorsal fins, and ventral caudal-fin lobe, strongly falcate<br />
4 mouth very short and broadly arched<br />
5 teeth concealed when mouth closed<br />
6 upper teeth with oblique, subtriangular cusps, lateral margins serrated<br />
7 front lower teeth with short, erect cusps (roots strongly arched)<br />
Size: To at least 114 cm; males and females mature at about 74 and 78 cm respectively;<br />
born at about 45 cm.<br />
Distribution: Tropical Indo–West Pacific, from the Red Sea to Indonesia and north to<br />
China, excluding Australia and New Guinea.<br />
Habitat and biology: Occurs on or near the bottom on the continental shelf.<br />
Viviparous, with a yolk-sac placenta; gives birth possibly twice a year to litters of 2–4<br />
pups after a gestation period of probably less than 6 months. Diet largely unknown, but<br />
a few stomachs examined contained cephalopods.<br />
Utilisation: Often caught by inshore gillnet, bottom trawl and, to a lesser extent,<br />
longline fisheries. Used for its meat and fins, but of limited value due to its small size.<br />
Conservation status: IUCN Red List: Vulnerable.
C a r c h a r h i n i f o r m e s 81<br />
Local synonyms: Hemigaleus machlani Herre, 1929; Carcharias (Hypoprion) notatus<br />
Bleeker, 1850.<br />
References: White (2007a); Taylor & Bennett (2008).<br />
Upper tooth<br />
5<br />
4<br />
Ventral head<br />
6<br />
In Borneo: Widespread.<br />
Hemigaleidae (Weasel <strong>Sharks</strong>)<br />
7<br />
Lower tooth<br />
Pectoral fin - ventral
82 S h a r k s a n d R a y s o f B o r n e o<br />
Fossil Shark<br />
Hemipristis elongata (Klunzinger, 1871)<br />
3<br />
1<br />
2<br />
3<br />
3<br />
3<br />
Other names: Snaggletooth Shark (English), Hiu Monas (Indonesian), Jerung Gigi<br />
Cerakah, Yu Putih (Malaysian)<br />
Identifying features:<br />
1 spiracles small<br />
2 gill slits large, more than twice eye length<br />
3 pelvic and dorsal fins, and ventral caudal-fin lobe, strongly falcate<br />
4 snout bluntly rounded (viewed from underneath)<br />
5 teeth protruding prominently when mouth closed<br />
6 front lower teeth with long, strongly hooked cusps<br />
Size: To at least 230 cm; males and females mature at 110–136 and about 120 cm<br />
respectively; born at 45–52 cm.<br />
Distribution: Tropical (rarely warm temperate) waters of the Indo–West Pacific, from<br />
southeastern Africa to northern Australia, and north to China.<br />
Habitat and biology: Occurs on continental and insular shelves to depths of at least<br />
130 m. Viviparous, with a yolk-sac placenta; gives birth to litters of 2–11 pups after a<br />
7–8 month gestation period; possibly breeds every second year. Diet consists of cephalopods<br />
and fishes, including small elasmobranchs.<br />
Utilisation: Caught often by inshore gillnet, bottom trawl and longline fisheries. Used<br />
for its meat (good quality), fins and cartilage. Population declines have been reported in<br />
some regions.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Chaenogaleus macrostoma (Bleeker): White et al. (2006b); Hemipristis<br />
elongatus (Klunzinger): Yano et al. (2005).
C a r c h a r h i n i f o r m e s 83<br />
References: White (2007a).<br />
4<br />
Upper tooth<br />
5<br />
Ventral head<br />
6<br />
In Borneo: Widespread.<br />
Hemigaleidae (Weasel <strong>Sharks</strong>)<br />
Lower tooth<br />
Pectoral fin - ventral<br />
Juvenile (63 cm)
84 S h a r k s a n d R a y s o f B o r n e o<br />
Straight-tooth Weasel Shark<br />
Paragaleus tengi (Chen, 1963)<br />
3<br />
3<br />
1<br />
2<br />
3<br />
3<br />
Other names: None (English), Hiu Kacang, Hiu Pasir (Indonesian), Yu Gigi Lurus<br />
(Malaysian)<br />
Identifying features:<br />
1 spiracles small<br />
2 gill slits small, less than twice eye length<br />
3 pelvic and dorsal fins, and ventral caudal-fin lobe, not falcate<br />
4 snout pointed (viewed from underneath)<br />
5 mouth long, narrowly arched<br />
6 teeth concealed when mouth closed<br />
7 upper teeth with narrow, moderately long, semi-erect to oblique cusps, and distal<br />
cusplets<br />
8 anterior lower teeth with moderately long, erect cusps (roots slightly arched)<br />
Size: To at least 93 cm; free-swimming at 40 cm.<br />
Distribution: Tropical northwestern Pacific, from Indonesia to southern Japan.<br />
Habitat and biology: An inshore species, probably occurring on or near the bottom.<br />
Viviparous, with a yolk-sac placenta; biology and diet unknown.<br />
Utilisation: Caught occasionally by inshore gillnet, bottom trawl and longline fisheries.<br />
Used for its meat and fins, but of limited value due to its small size.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: Negogaleus longicaudatus Bessednov, 1966.<br />
References: None.
C a r c h a r h i n i f o r m e s 85<br />
4<br />
6<br />
5<br />
Upper tooth<br />
Ventral head<br />
7<br />
In Borneo: Off Sabah, Sarawak and<br />
eastern Kalimantan.<br />
Hemigaleidae (Weasel <strong>Sharks</strong>)<br />
8<br />
Lower tooth
86 S h a r k s a n d R a y s o f B o r n e o<br />
Silvertip Shark<br />
Carcharhinus albimarginatus (Rüppell, 1837)<br />
3<br />
1<br />
2<br />
1<br />
1<br />
1<br />
1<br />
Other names: None (English), Cucut Lanjaman, Hiu Lanyam, Hiu Plen, Hiu Sonteng<br />
(Indonesian), none (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal, pectoral, pelvic and caudal fins with prominent white tips<br />
2 interdorsal ridge present<br />
3 apex of 1 st dorsal fin pointed or narrowly rounded<br />
4 snout rather long and parabolic (viewed ventrally)<br />
5 upper teeth triangular, cusp oblique, edges distinctly notched and serrated<br />
6 lower teeth serrated but more slender and erect than uppers<br />
Size: To at least 275 cm; males and females mature at about 170 and 195 cm respectively;<br />
born at 70–80 cm.<br />
Distribution: Widespread in the tropical Indo–Pacific, from southeastern Africa to<br />
central America.<br />
Habitat and biology: An inshore and offshore pelagic shark, rather than oceanic;<br />
occurring throughout the water column to depths of at least 800 m. Viviparous, with a<br />
yolk-sac placenta; gives birth every second year to a litter of about 6 pups (maximum<br />
11) after a 12 month gestation period. Diet includes a variety of pelagic and demersal<br />
fishes. Known to be aggressive when provoked and is potentially dangerous to humans.<br />
Utilisation: Locally, rarely landed by longline and pelagic gillnet fisheries. Used elsewhere<br />
for its fins, meat, skin and cartilage.<br />
Conservation status: IUCN Red List: Near Threatened.
C a r c h a r h i n i f o r m e s 87<br />
Local synonyms: None.<br />
References: None.<br />
4<br />
Upper tooth<br />
Ventral head<br />
5<br />
In Borneo: Few confirmed local records,<br />
but observed by divers at the Spratly<br />
Islands in the South China Sea; probably<br />
also common around coral reefs off eastern<br />
Sabah.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Lower tooth<br />
6
88 S h a r k s a n d R a y s o f B o r n e o<br />
Graceful Shark<br />
Carcharhinus amblyrhynchoides (Whitley, 1934)<br />
1<br />
2<br />
1<br />
1<br />
1<br />
1<br />
Other names: Queensland Shark (English), Cucut Lanjaman, Hiu Bujit (Indonesian),<br />
Yu Jalur Putih (Malaysian)<br />
Identifying features:<br />
1 all fin tips usually black or dusky (except anal fin)<br />
2 interdorsal ridge absent<br />
3 snout rather short, narrowly rounded to pointed (viewed ventrally), internarial space<br />
1–1.2 times preoral snout length<br />
4 upper and lower teeth with a slender, erect cusp, no basal cusplets<br />
5 precaudal vertebrae usually less than 82<br />
Size: To at least 178 cm; both sexes mature at about 110–115 cm; born at 50–60 cm.<br />
Distribution: Tropical Indo–West Pacific, from the Gulf of Aden to northern Australia<br />
and the Philippines.<br />
Habitat and biology: Primarily pelagic in midwater over insular shelves, from close<br />
inshore to bottom depths of at least 50 m. Viviparous, with a yolk-sac placenta; gives<br />
birth to litters of an average of 3 pups (maximum 8) after a 9–10 month gestation<br />
period. Diet consists primarily of fish, with smaller amounts of crustaceans and cephalopods.<br />
Not dangerous to humans.<br />
Utilisation: Caught mainly as bycatch by longlining. Used for its fins and meat, but<br />
typically only small in size.<br />
Conservation status: IUCN Red List: Near Threatened.
C a r c h a r h i n i f o r m e s 89<br />
Local synonyms: None.<br />
References: White (2007c); Ahmad et al. (2008).<br />
3<br />
Upper tooth<br />
Ventral head<br />
4<br />
In Borneo: Widespread.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Lower tooth
90 S h a r k s a n d R a y s o f B o r n e o<br />
Grey Reef Shark<br />
Carcharhinus amblyrhynchos (Bleeker, 1856)<br />
3<br />
2<br />
1<br />
Other names: Longnose Blacktail Shark (English), Cucut Lanjaman, Hiu Bujit, Merak<br />
Bulu, Hiu Lonjor (Indonesian), Yu Ekor Hitam (Malaysian)<br />
Identifying features:<br />
1 a wide, black posterior caudal-fin margin<br />
2 interdorsal ridge usually absent (sometimes weak)<br />
3 1 st dorsal fin relatively tall, its origin over pectoral-fin free rear tips<br />
4 snout broadly rounded (viewed ventrally)<br />
5 upper teeth long, narrowly triangular, with notch on one edge<br />
6 lower teeth narrow, more erect than uppers<br />
Size: To at least 255 cm, usually
C a r c h a r h i n i f o r m e s 91<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: Galeolamna tufiensis Whitley, 1949; specimen figured as Carcharhinus<br />
galapagensis (Snodgrass & Heller) in Yano et al. (2005) is most likely a juvenile male of<br />
this species.<br />
References: None.<br />
4<br />
Ventral head<br />
In Borneo: Patchily distributed, but<br />
probably widespread. Recorded off<br />
Sabah, Sarawak, and eastern and western<br />
Kalimantan.<br />
1<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Embryo (67 cm)<br />
Upper tooth<br />
5<br />
6<br />
Lower tooth
92 S h a r k s a n d R a y s o f B o r n e o<br />
Borneo Shark<br />
Carcharhinus borneensis (Bleeker, 1858)<br />
3<br />
2<br />
1<br />
Other names: None (English), Hiu (Indonesian), Yu Borneo (Malaysian)<br />
Identifying features:<br />
1 2 nd dorsal fin very low (height 2.2–2.5 in inner margin), its origin over midbase of<br />
anal fin<br />
2 interdorsal ridge absent<br />
3 1 st dorsal-fin inner margin relatively long, about half of fin base<br />
4 snout very long and pointed (viewed ventrally), not strongly calcified<br />
5 hyomandibular pores conspicuously enlarged alongside mouth corners<br />
6 upper teeth serrated with a narrow, oblique cusp and large basal cusplets<br />
7 lower teeth with an erect to oblique cusp and weak cusplets<br />
8 upper and lower tooth rows 11–12<br />
Size: To at least 65 cm; males mature at about 55–58 cm.<br />
Distribution: Known from off Malaysia, China, and possibly Indonesia and the<br />
Philippines but range probably now more restricted.<br />
Habitat and biology: A rarely caught coastal and inshore species. Biology and habitat<br />
virtually unknown.<br />
Utilisation: Presumably caught on line; used for its meat but of limited value due to its<br />
small size and restricted distribution.<br />
Conservation status: IUCN Red List: Endangered.<br />
Local synonyms: Specimen figured as Carcharhinus borneensis in Yano et al. (2005) is a<br />
juvenile Rhizoprionodon acutus (Rüppell).<br />
References: White et al. (2010a).
C a r c h a r h i n i f o r m e s 93<br />
4<br />
Upper tooth<br />
Lower tooth<br />
Ventral head<br />
5<br />
6<br />
7<br />
In Borneo: Presently known only<br />
from Mukah (Sarawak); type collected<br />
in the 19 th century from northwestern<br />
Kalimantan.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)
94 S h a r k s a n d R a y s o f B o r n e o<br />
Spinner Shark<br />
Carcharhinus brevipinna (Müller & Henle, 1839)<br />
1<br />
2<br />
Other names: Longnose Grey <strong>Whaler</strong>, Inkytail Shark, Smoothfang Shark (English),<br />
Hiu Bujit, Hiu Plen, Merak Bulu, Cucut Lanjaman (Indonesian), Yu Muncung Panjang<br />
(Malaysian)<br />
Identifying features:<br />
1 1 st dorsal-fin usually slightly behind pectoral-fin free rear tips<br />
2 interdorsal ridge absent<br />
3 snout long and pointed (viewed ventrally)<br />
4 all fins, except pelvics, with conspicuous black tips in specimens over 1 m<br />
5 upper labial furrows conspicuous<br />
6 upper and lower teeth similar, nearly symmetrical, with a very low and narrow, erect<br />
cusp<br />
Size: To about 300 cm; both sexes mature at about 190–200 cm; born at 60–81 cm.<br />
Distribution: Tropical and warm temperate waters of the Indian, western Pacific and<br />
Atlantic Oceans.<br />
Habitat and biology: Generally found nearshore to at least 75 m depth on the<br />
continental shelf. Viviparous, with a yolk-sac placenta; gives birth every second year to<br />
litters of 3–15 pups after a 10–12 month gestation period. Both sexes mature at 8–10<br />
years. Diet consists primarily of small pelagic fishes, and smaller quantities of<br />
cephalopods. An active schooling species capable of spinning out of the water during<br />
feeding runs through fish schools.<br />
Utilisation: Caught by longlining, with juveniles a very abundant component of<br />
inshore gillnet fisheries in parts of Indonesia. Used for its fins, meat, skin and cartilage.<br />
Conservation status: IUCN Red List: Near Threatened.
C a r c h a r h i n i f o r m e s 95<br />
Local synonyms: Carcharias (Prionodon) brevipinna Bleeker, 1853.<br />
References: None.<br />
3<br />
5 In Borneo: Probably widespread.<br />
Ventral head<br />
Upper tooth<br />
6<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Lower tooth<br />
Lateral head
96 S h a r k s a n d R a y s o f B o r n e o<br />
Whitecheek Shark<br />
Carcharhinus dussumieri (Müller & Henle, 1839)<br />
1<br />
2<br />
3<br />
Other names: Widemouth Blackspot Shark (English), Cucut Lanjaman, Hiu Bujit<br />
(Indonesian), Yu Pasir (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal fin moderately tall, broad, not falcate<br />
2 low interdorsal ridge usually present<br />
3 only 2 nd dorsal fin with a black tip (usually covering about half of fin)<br />
4 snout rather long, broadly parabolic (viewed ventrally)<br />
5 upper teeth with strongly oblique cusp, flanked on one side by strong, serrated<br />
cusplets<br />
6 lower teeth narrow, upright, no cusplets<br />
Size: To at least 94 cm; both sexes mature at about 70–75 cm; born at 34–40 cm.<br />
Distribution: Tropical waters of the Indo–West Pacific, from the Red Sea to northern<br />
Australia, New Guinea and Japan.<br />
Habitat and biology: A common demersal inshore species from close inshore to<br />
about 170 m depth. Viviparous, with a yolk-sac placenta; gives birth each year to litters<br />
of 2 (maximum 4) pups after an unknown gestation period; no reproductive<br />
seasonality. Diet consists primarily of fish, and to a lesser extent crustaceans and<br />
cephalopods. Molecular analysis has identified the existence of several forms in the<br />
Indo–Pacific that could be separate species.<br />
Utilisation: Commonly caught by bottom trawl and demersal gillnet fisheries. Used for<br />
its fins and meat but of limited value due to its small size.<br />
Conservation status: IUCN Red List: Near Threatened.
C a r c h a r h i n i f o r m e s 97<br />
Local synonyms: Carcharias (Prionodon) tjutjot Bleeker, 1852; Carcharias (Prionodon)<br />
javanicus Bleeker, 1852.<br />
References: None.<br />
4<br />
Upper tooth<br />
Ventral head<br />
5<br />
In Borneo: Widespread.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Lower tooth<br />
6
98 S h a r k s a n d R a y s o f B o r n e o<br />
Silky Shark<br />
Carcharhinus falciformis (Müller & Henle, 1839)<br />
1<br />
2<br />
3<br />
Other names: None (English), Mungsing, Hiu Lonjor, Cucut Lanjaman, Hiu Bujit,<br />
Hiu Lanyam (Indonesian), Yu Jereh, Yu Pasir (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal-fin origin well behind pectoral-fin free rear tips<br />
2 interdorsal ridge present<br />
3 2 nd dorsal-fin low with very long inner margin, 1.6–3.0 times its height<br />
4 snout rather long, narrowly rounded (viewed ventrally)<br />
5 upper teeth narrow with one edge prominently notched<br />
6 lower teeth narrow, upright<br />
Size: To about 350 cm, but usually
C a r c h a r h i n i f o r m e s 99<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: Aprionodon sitankaiensis Herre, 1934.<br />
References: None.<br />
4<br />
Upper tooth<br />
Ventral head<br />
5<br />
In Borneo: Eastern Sabah, and northwestern<br />
and eastern Kalimantan; probably<br />
widespread.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Lower tooth<br />
6
100 S h a r k s a n d R a y s o f B o r n e o<br />
Bull Shark<br />
Carcharhinus leucas (Müller & Henle, 1839)<br />
2<br />
1<br />
3<br />
Other names: River <strong>Whaler</strong>, Freshwater <strong>Whaler</strong> (English), Cucut Bekeman, Hiu Buas,<br />
Hiu Bujit (Indonesian), Jerung Sapi, Yu Jerung (Malaysian)<br />
Identifying features:<br />
1 2 nd dorsal fin relatively large (about a third height of 1 st dorsal fin)<br />
2 interdorsal ridge absent<br />
3 notch on posterior margin of anal fin not acute (usually 90º or more)<br />
4 snout very short and broadly rounded (viewed ventrally), preoral length less than<br />
internarial space<br />
5 upper teeth triangular, edges heavily serrated<br />
6 lower teeth narrowly triangular, erect<br />
7 usually 12 tooth rows on each side of lower jaw<br />
Size: To at least 400 cm; males and females mature at 197–226 and 180–230 cm<br />
respectively; born at 55–80 cm.<br />
Distribution: Cosmopolitan in most tropical and warm temperate waters, including<br />
freshwater and brackish rivers and lakes.<br />
Habitat and biology: A coastal, estuarine and freshwater shark, occurring near the<br />
bottom to depths of at least 150 m. Viviparous, with a yolk-sac placenta; gives birth to<br />
litters of 1–13 pups after a 10–11 month gestation period. Both sexes mature at about<br />
20 years and attain 50 years, in South African populations. Omnivorous, diet includes<br />
turtles, crocodiles, birds, dolphins, terrestrial mammals and crustaceans, but prefers bony<br />
fishes and elasmobranchs. An extremely aggressive shark that has frequently attacked<br />
humans. Molecular analysis has identified slight population differences between Indo–<br />
Pacific and Atlantic forms.
C a r c h a r h i n i f o r m e s 101<br />
Utilisation: Landed occasionally by coastal longline and gillnet fisheries. Used for its<br />
fins, meat, skin, jaws and cartilage.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: None.<br />
References: None.<br />
4<br />
Ventral head<br />
In Borneo: Widespread, concentrated<br />
near major river outflows.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Juvenile (86 cm)<br />
Upper tooth<br />
6<br />
5<br />
Lower tooth
102 S h a r k s a n d R a y s o f B o r n e o<br />
Common Blacktip Shark<br />
Carcharhinus limbatus (Müller & Henle, 1839)<br />
4<br />
1<br />
2<br />
4<br />
4<br />
4<br />
4<br />
Other names: Blacktip <strong>Whaler</strong> (English), Hiu Kejen, Merak Bulu, Cucut Lanjaman,<br />
Hiu Lanyam, Hiu Bujit (Indonesian), Yu Trihitam, Yu Jereh, Yu Kepak Hitam (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal-fin origin above or just behind pectoral-fin insertions<br />
2 interdorsal ridge absent<br />
3 snout long and pointed (viewed ventrally), internarial space 1.3–1.7 times preoral<br />
snout<br />
4 juveniles with obvious black fin tips (dorsal, pectoral and lower lobe of caudal fin<br />
plain in specimens >130 cm)<br />
5 upper labial furrows short, barely noticeable<br />
6 upper and lower teeth similar, nearly symmetrical, with an erect, narrow cusp<br />
Size: To at least 250 cm; males and females mature at 165–180 and 183–194 cm<br />
respectively; born at 40–70 cm.<br />
Distribution: Cosmopolitan in tropical and warm temperate waters.<br />
Habitat and biology: Mainly pelagic over continental and insular shelves, usually<br />
inshore, but occasionally found well offshore. Viviparous, with a yolk-sac placenta; gives<br />
birth every two years to litters of about 4–7 pups (maximum 10) after a 10–12 month<br />
gestation period. Males and females mature at 6–7 and 5–6 years respectively. Diet<br />
consists primarily of bony fishes and elasmobranchs, as well as crustaceans and cephalopods.<br />
Harmless to humans, unless stimulated by food. Molecular analysis has identified<br />
differences between Indo–Pacific and Atlantic forms that could be separate species.
C a r c h a r h i n i f o r m e s 103<br />
Utilisation: Caught by longline and inshore gillnet fisheries. Used for its fins, meat, skin<br />
and cartilage.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: Carcharias (Prionodon) pleurotaenia Bleeker, 1852.<br />
References: None.<br />
3<br />
Ventral head<br />
5<br />
In Borneo: Widespread.<br />
Upper tooth<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
6<br />
Lateral head<br />
Lower tooth
104 S h a r k s a n d R a y s o f B o r n e o<br />
Hardnose Shark<br />
Carcharhinus macloti (Müller & Henle, 1839)<br />
3<br />
2<br />
1<br />
Other names: None (English), Hiu Aron (Indonesian), Yu Muncung Keras, Yu Jereh,<br />
Yu Pasir (Malaysian)<br />
Identifying features:<br />
1 2 nd dorsal-fin origin about over midbase of anal fin<br />
2 interdorsal ridge absent<br />
3 1 st dorsal-fin inner margin extremely long, about two thirds of fin base<br />
4 snout long and pointed (viewed ventrally); rostrum very hard and strongly calcified<br />
5 upper teeth with narrow, oblique or nearly erect central cusp, bordered by strong<br />
cusplets<br />
6 lower teeth tall, narrow, upright, smooth edged<br />
Size: To at least 110 cm; males and females mature at 70–75 cm; born at 40–45 cm.<br />
Distribution: Tropical Indo–West Pacific, from eastern Africa to northern Australia and<br />
New Guinea.<br />
Habitat and biology: Occurs from close inshore to at least 170 m depth, sometimes in<br />
large aggregations. Viviparous, with a yolk-sac placenta; gives birth every second year to<br />
litters of usually 2 pups after a gestation period of about 12 months. Diet consists<br />
primarily of small fishes, but also cephalopods and crustaceans.<br />
Utilisation: Caught occasionally by inshore demersal gillnet fisheries. Used for its fins<br />
and meat, but of limited value due to its small size.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: None.<br />
References: None.
C a r c h a r h i n i f o r m e s 105<br />
4<br />
Upper tooth<br />
Ventral head<br />
5<br />
In Borneo: Patchy, off Sarawak, Sabah<br />
and eastern Kalimantan.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Lower tooth<br />
6
106 S h a r k s a n d R a y s o f B o r n e o<br />
Blacktip Reef Shark<br />
Carcharhinus melanopterus (Quoy & Gaimard, 1824)<br />
1<br />
2<br />
3<br />
7<br />
Other names: Blacktip Shark, Guliman (English), Hiu Mada, Kluyu Karang, Hiu<br />
Bujit (Indonesian), Yu Sirip Hitam, Yu Kepak Hitam, Yu Nipah (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal fin with a thick black tip (its inner edge sharply defined and often<br />
bordered by white area)<br />
2 interdorsal ridge absent<br />
3 distinct pale stripe along each flank<br />
4 snout very short, broadly rounded (viewed ventrally), preoral length subequal to<br />
internarial space<br />
5 upper teeth with narrow, oblique central cusp and low basal cusplets<br />
6 lower teeth narrow, upright to oblique, edges finely serrated<br />
7 caudal fin lower lobe with thick black tip (other fins often with smaller black tips)<br />
Size: To at least 142 cm; both sexes mature at 95–110 cm; born at 35–50 cm.<br />
Distribution: Tropical Indo–West Pacific and Central Pacific, from southeastern Africa<br />
to the Central Pacific Islands, and eastern Mediterranean.<br />
Habitat and biology: One of the most common reef sharks, usually living in lagoons<br />
and near the fringes of reefs. Viviparous, with a yolk-sac placenta; gives birth each year<br />
to litters of 2–4 pups after an 8–9 month gestation period (breeds every second year in<br />
Aldabra, Western Indian Ocean). Diet consists primarily of fishes, but also cephalopods,<br />
crustaceans and other molluscs. Not regarded as dangerous but has been known to<br />
attack waders and spearfishers.
C a r c h a r h i n i f o r m e s 107<br />
Utilisation: Caught by shallow-set lines and nets, and probably adversely affected by<br />
dynamite fishing in the region. Used for its fins and meat.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: None.<br />
References: None.<br />
4<br />
Ventral head<br />
In Borneo: Widespread.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Upper tooth<br />
5<br />
Lower tooth<br />
6
108 S h a r k s a n d R a y s o f B o r n e o<br />
Sandbar Shark<br />
Carcharhinus plumbeus (Nardo, 1827)<br />
3<br />
1<br />
2<br />
Other names: Thickskin Shark, Brown Shark (English), Hiu Teteri, Cucut Lanjaman<br />
(Indonesian), Yu Kulit Tebal (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal fin very broad and tall, more than half of predorsal length (smaller in<br />
newborns)<br />
2 interdorsal ridge present<br />
3 origin of 1 st dorsal-fin over or just anterior to pectoral-fin insertion<br />
4 snout rather long and broadly rounded (viewed ventrally)<br />
5 upper teeth broadly triangular, cusp erect to slightly oblique<br />
6 lower teeth narrow, upright, edges finely serrated<br />
Size: To at least 240 cm; males and females mature at 130–180 cm and 145–185 cm<br />
respectively; born at 52–75 cm.<br />
Distribution: Cosmopolitan, but patchy, in tropical and warm temperate waters.<br />
Habitat and biology: Occurs over continental and insular shelves, and adjacent deep<br />
water, from the intertidal to depths of at least 280 m, usually near the bottom in 20–<br />
60 m depth. Viviparous, with a yolk-sac placenta; gives birth every two or three years<br />
to litters of 5–12 (maximum 14) pups after a 12 month gestation period. Males and<br />
females mature at 14 and 16 years respectively, in Australian populations. Diet consists<br />
primarily of fishes, but also cephalopods and crustaceans. Not reported to be dangerous<br />
to humans. Molecular analysis has identified differences between Indo–Pacific and<br />
Atlantic forms that could be separate species.
C a r c h a r h i n i f o r m e s 109<br />
Utilisation: Occasionally caught in the shark longline and tuna gillnet fisheries. Used<br />
for its fins (high value in adults), meat, skin and cartilage.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: None.<br />
References: None.<br />
4<br />
Upper tooth<br />
Ventral head<br />
5<br />
In Borneo: Off Sabah, Sarawak and<br />
Brunei, but probably more widespread.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Lower tooth<br />
6
110 S h a r k s a n d R a y s o f B o r n e o<br />
Blackspot Shark<br />
Carcharhinus sealei (Pietschmann, 1913)<br />
1<br />
2<br />
3<br />
Other names: None (English), Cucut Lanjaman (Indonesian), Yu Pasir (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal fin moderately tall, moderately falcate<br />
2 low interdorsal ridge usually present<br />
3 only 2 nd dorsal fin with a black tip (covering more than half of fin, often extending<br />
onto body)<br />
4 snout rather long, narrowly parabolic (viewed ventrally)<br />
5 upper teeth with strongly oblique cusp, flanked on one side by strong, smooth-edged<br />
cusplets<br />
6 lower teeth narrow, upright, usually with conspicuous cusplets<br />
Size: To at least 95 cm; males and females mature at >80 cm and 68–75 cm respectively;<br />
born at 33–45 cm.<br />
Distribution: Tropical Indo–West Pacific, from southeastern Africa to New Guinea<br />
and China (not found in Australian waters).<br />
Habitat and biology: A common coastal species, demersal in inshore waters from the<br />
surf zone down to at least 40 m depth. Viviparous, with a yolk-sac placenta; gives birth<br />
to litters of 1 or 2 pups after a gestation period of ~9 months; fast growing, matures<br />
after 1 year and maximum age about 5 years. Diet consists of small fishes, crustaceans<br />
and cephalopods. Not dangerous to humans.<br />
Utilisation: Caught frequently off Sarawak and northwestern Kalimantan by trawl and<br />
gillnet fisheries. Used for its fins and meat but of limited value due to its small size.<br />
Conservation status: IUCN Red List: Near Threatened.
C a r c h a r h i n i f o r m e s 111<br />
Local synonyms: Carcharias borneensis Seale, 1910.<br />
References: None.<br />
4<br />
Upper tooth<br />
Ventral head<br />
5<br />
In Borneo: Widespread, but no current<br />
records from southwestern Kalimantan.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Lower tooth<br />
6
112 S h a r k s a n d R a y s o f B o r n e o<br />
Spot-tail Shark<br />
Carcharhinus sorrah (Müller & Henle, 1839)<br />
2<br />
1 3<br />
1<br />
1<br />
Other names: Sorrah Shark, School Shark (English), Cucut Lanjaman, Hiu Bujit,<br />
Lanyam, Merak Bulu, Mungsing (Indonesian), Yu Kepak Hitam (Malaysian)<br />
Identifying features:<br />
1 2 nd dorsal, pectoral and ventral tip of caudal fin strikingly black-tipped<br />
2 interdorsal ridge present<br />
3 2 nd dorsal fin very low, inner margin extremely long (2.0–2.6 times fin height)<br />
4 snout long and moderately pointed (viewed ventrally)<br />
5 upper teeth with oblique cusp, flanked on one side by strong cusplets<br />
6 lower teeth narrow, oblique, without cusplets<br />
Size: To at least 160 cm; males and females mature at 90–115 cm and 95–118 cm<br />
respectively; born at 50–55 cm.<br />
Distribution: Tropical Indo–West Pacific, from southeastern Africa to northern<br />
Australia, Solomon Islands and Japan.<br />
Habitat and biology: A common shark, particularly off western Borneo; occurring<br />
over continental and insular shelves, including around coral reefs, from the intertidal to<br />
at least 80 m depth. Viviparous, with a yolk-sac placenta; giving birth each year to<br />
litters of about 3–8 pups after a 10 month gestation period. Growth rapid with both<br />
sexes maturing at about 2–3 years. Diet consists primarily of bony fishes, but also<br />
cephalopods and crustaceans. Not dangerous to humans.<br />
Utilisation: Common catch of the shark longline and inshore gillnet fisheries. Used<br />
widely for its fins, meat, skin and cartilage.<br />
Conservation status: IUCN Red List: Near Threatened.
C a r c h a r h i n i f o r m e s 113<br />
Local synonyms: Specimen figured as Carcharhinus hemiodon (Müller & Henle) in Yano<br />
et al. (2005) appears to be an adult male of this species.<br />
References: None.<br />
4<br />
Upper tooth<br />
Ventral head<br />
5<br />
In Borneo: Widespread.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Lower tooth<br />
6
114 S h a r k s a n d R a y s o f B o r n e o<br />
Tiger Shark<br />
Galeocerdo cuvier (Péron & Lesueur, 1822)<br />
2 1<br />
3<br />
Other names: None (English), Mungsing Jara, Hiu Macan, Hiu Omas (Indonesian), Yu<br />
Tenggiri, Yu Giling, Jerung Tenggiri (Malaysian)<br />
Identifying features:<br />
1 dark, vertical bars on sides (less distinct in adults)<br />
2 spiracle present, small and slit-like<br />
3 caudal peduncle with a low, rounded, lateral keel<br />
4 snout very short and bluntly rounded (viewed ventrally)<br />
5 upper labial furrows very long, subequal to preoral length<br />
6 teeth in both jaws heavily serrated, cockscomb-shaped, one edge deeply notched, the<br />
other convex<br />
Size: To at least 600 cm (one record of 740 cm); males and females mature at 300–305<br />
and 250–350 cm respectively; born at about 51–76 cm.<br />
Distribution: Cosmopolitan in all tropical seas, making seasonal incursions into warm<br />
temperate areas.<br />
Habitat and biology: Occurs close inshore to the outer continental shelf, including the<br />
intertidal zone and surface, to at least 150 m depth. The only non-placental whaler shark;<br />
viviparous, with histotrophy; gives birth to litters of an average of 33 pups (maximum 82)<br />
after a 12–16 month gestation period. Males and females mature at 7–8 and 7–12 years<br />
respectively. Omnivorous, feeding on a broad variety of prey including fishes, elasmobranchs,<br />
dugongs, birds, turtles, snakes, dolphins, birds, crustaceans and cephalopods.<br />
Potentially very dangerous to humans given its large size and presence close inshore, but<br />
normally not aggressive. Probably belongs to its own family of sharks.
C a r c h a r h i n i f o r m e s 115<br />
Utilisation: Caught occasionally by the shark longline, tangle net and bottom trawl<br />
fisheries. Valuable for its fins, meat, skin, jaws and cartilage.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: Carcharias (Prionodon) fasciatus Bleeker, 1852; Galeocerdo fasciatus van<br />
Kampen, 1907.<br />
References: None.<br />
4<br />
5<br />
Ventral head<br />
In Borneo: Almost certainly widespread;<br />
current records are from off Sarawak,<br />
Sabah and eastern Kalimantan.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Upper tooth<br />
6<br />
Lower tooth
116 S h a r k s a n d R a y s o f B o r n e o<br />
Mukah River Shark<br />
Glyphis sp.<br />
5<br />
4<br />
2<br />
6<br />
1<br />
5<br />
5<br />
Other names: None (English), none (Indonesian), Yu Sungai (Malaysian)<br />
Identifying features:<br />
1 precaudal pits longitudinal (not crescentic)<br />
2 2 nd dorsal fin only moderately tall, slightly less than half height of 1 st dorsal fin<br />
3 eyes moderately large<br />
4 1 st dorsal-fin free rear tip just anterior to pelvic-fin origins<br />
5 fins plain<br />
6 2 nd dorsal-fin posterior margin moderately concave<br />
7 waterline (demarcation of dark dorsal and pale ventral colours) sharp, extending<br />
through level of mid-eye on head<br />
Size: Known from two immature males of 610 and 658 mm. An adult male Glyphis<br />
(1660 mm) caught in Sampit Bay (South Kalimantan) is possibly conspecific.<br />
Distribution: Possibly endemic to waters of Borneo.<br />
Habitat and biology: Very rare; probably occurs in turbid rivers, brackish backwaters<br />
and marine areas adjacent to major river outflows. Biology unknown; presumably viviparous,<br />
with yolk-sac placenta. Diet also unknown, presumably primarily bony fishes.<br />
Conservation status needs investigating, likely to be highly threatened.<br />
Utilisation: Caught rarely. Probably utilised for its meat and fins where caught.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: None.
C a r c h a r h i n i f o r m e s 117<br />
References: Fahmi & Adrim (2009); Compagno et al. (2010).<br />
3<br />
7<br />
Lateral head<br />
In Borneo: Known from only two<br />
specimens collected from Mukah in<br />
Sarawak. A specimen collected from<br />
Sampit Bay in south Kalimantan may<br />
also represent this species.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)
118 S h a r k s a n d R a y s o f B o r n e o<br />
Borneo River Shark<br />
Glyphis fowlerae Compagno, White & Cavanagh, 2010<br />
3<br />
7<br />
4<br />
2<br />
6<br />
1<br />
5<br />
5<br />
Other names: None (English), none (Indonesian), Yu Sungai (Malaysian)<br />
Identifying features:<br />
1 precaudal pits longitudinal (not crescentic)<br />
2 2 nd dorsal fin tall, half to three fifths of 1 st dorsal-fin height<br />
3 eyes noticeably small<br />
4 1 st dorsal-fin free rear tip just anterior to pelvic-fin origins<br />
5 fins mainly plain, except for dark patch on pectoral-fin bases and dusky tip on<br />
ventral caudal-fin lobe<br />
6 2 nd dorsal-fin posterior margin nearly straight or shallowly concave<br />
7 waterline (demarcation of dark dorsal and pale ventral colours) diffuse, extending<br />
below eye on head<br />
8 lower anterior teeth with an entirely serrated cusp, no spear-like tips; total tooth row<br />
counts 60–63<br />
9 total vertebral centra 196–205, precaudal centra 108–114<br />
Size: To at least 200 cm; born at about 50 cm.<br />
Distribution: Endemic to waters of Borneo.<br />
Habitat and biology: Very rare; occurs in turbid rivers and brackish backwaters.<br />
Biology essentially unknown; presumably viviparous, with yolk-sac placenta. Diet also<br />
unknown, presumably primarily bony fishes. Conservation status needs investigating,<br />
likely to be highly threatened.<br />
Utilisation: Caught infrequently, and only in specific locations, by artisanal fishers using
C a r c h a r h i n i f o r m e s 119<br />
lines and gill nets in the Kinabatangan River. Utilised for its meat.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: Glyphis sp. B: Compagno & Niem (1998); Compagno et al. (2005);<br />
Glyphis sp.: Yano et al. (2005).<br />
References: Compagno et al. (2010).<br />
7<br />
Ventral head<br />
3<br />
In Borneo: Recorded only from the<br />
Kinabatangan River, northeastern Sabah.<br />
Upper tooth<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Lateral head<br />
Lower tooth<br />
8
120 S h a r k s a n d R a y s o f B o r n e o<br />
Borneo Broadfin Shark<br />
Lamiopsis tephrodes (Fowler, 1905)<br />
3<br />
2<br />
1<br />
4<br />
Other names: None (English), Hiu Bujit (Indonesian), Yu Sirip Lebar (Malaysian)<br />
Identifying features:<br />
1 precaudal pits longitudinal (not crescentic)<br />
2 2 nd dorsal fin very tall, similar to height of 1 st dorsal fin<br />
3 interdorsal ridge absent<br />
4 pectoral fin long with a very broad base<br />
5 snout rather long, parabolic (viewed ventrally)<br />
6 upper teeth with a high, broadly triangular, erect to weakly oblique cusp<br />
7 lower teeth with an erect, high, hooked, smooth-edged cusp<br />
Size: To at least 157 cm; males and females mature at about 114 and 130 cm respectively;<br />
born at 40–60 cm.<br />
Distribution: Not well defined; tropical waters of the Indo–Malay Archipelago, north<br />
to China.<br />
Habitat and biology: Probably a range-restricted shark occurring in shallow coastal<br />
and inshore waters, usually with high turbidity. Viviparous, with a yolk-sac placenta;<br />
gives birth to litters of 4–8 (usually 8) pups after a gestation period of about 8 months.<br />
Dietary composition not known, but probably consists of small fishes, crustaceans and<br />
cephalopods. Harmless to humans.<br />
Utilisation: Caught irregularly by inshore gillnets at locations influenced by runoff<br />
from rivers. Used for its fins and meat.<br />
Conservation status: IUCN Red List: Not Evaluated.
C a r c h a r h i n i f o r m e s 121<br />
Local synonyms: Lamiopsis temmincki (Müller & Henle): Yano et al. (2005), White et al.<br />
(2006b); Carcharhinus microphthalmus Chu, 1960.<br />
References: White et al. (2010c).<br />
5<br />
Upper tooth<br />
Ventral head<br />
6<br />
In Borneo: Occurs around the Borneo<br />
coastline, but more common at particular<br />
localities, such as Mukah (Sarawak).<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Lower tooth<br />
7
122 S h a r k s a n d R a y s o f B o r n e o<br />
Sliteye Shark<br />
Loxodon macrorhinus Müller & Henle, 1839<br />
1<br />
3<br />
2<br />
5<br />
Other names: Jordan’s Blue Dogshark, Slender Dogshark (English), Hiu Kejen<br />
(Indonesian), Yu Mata Lekuk (Malaysian)<br />
Identifying features:<br />
1 eye large with distinct notch on its posterior edge<br />
2 2 nd dorsal-fin origin over anal-fin insertion<br />
3 1 st dorsal-fin origin well posterior to pectoral-fin free rear tips<br />
4 small and inconspicuous labial furrows<br />
5 preanal ridges very long, equal to anal-fin base length<br />
6 snout very long, parabolic (viewed ventrally)<br />
7 teeth in both jaws similar, with a strongly oblique, narrowly triangular, smoothedged<br />
cusp<br />
Size: To at least 99 cm; males and females mature at about 80–83 and 80–90 cm<br />
respectively; born at 54–55 cm.<br />
Distribution: Tropical waters of the Indo–West Pacific, from southeastern Africa to<br />
Australia and southern Japan.<br />
Habitat and biology: A common species occurring near the bottom in shallow, clear,<br />
inshore waters to at least 100 m depth. Viviparous, with a yolk-sac placenta; gives birth<br />
each year to litters of 2 pups (maximum 4); no reproductive seasonality. Diet consists<br />
primarily of small fishes and crustaceans, as well as cephalopods. Harmless to humans.<br />
Utilisation: Caught frequently by inshore demersal gillnet fisheries. Used for its fins<br />
and meat, but of limited value due to its small size.<br />
Conservation status: IUCN Red List: Least Concern.<br />
Local synonyms: Carcharias (Scoliodon) dumerilii Bleeker, 1856.<br />
References: None.
C a r c h a r h i n i f o r m e s 123<br />
6<br />
4 In Borneo: Mainly northern Borneo; off<br />
Sarawak, Sabah, and eastern and western<br />
Kalimantan.<br />
Ventral head<br />
Upper tooth<br />
Lower tooth<br />
7<br />
Eye<br />
1<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)
124 S h a r k s a n d R a y s o f B o r n e o<br />
Blue Shark<br />
Prionace glauca (Linnaeus, 1758)<br />
4<br />
1 3<br />
2<br />
Other names: Blue <strong>Whaler</strong>, Great Blue Shark (English), Hiu Aer, Hiu Lalaek, Hiu<br />
Karet, Cucut Selendang (Indonesian), Jerung Biru (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal-fin base closer to pelvic-fin base than pectoral-fin base<br />
2 pectoral fins very long and scythe-like<br />
3 caudal peduncle with weak lateral keels<br />
4 dorsal surface indigo blue, ventral surface white<br />
5 snout very long and narrowly rounded (viewed ventrally)<br />
6 upper teeth with a narrow, triangular, oblique and finely serrated cusp<br />
7 lower teeth with a slender, erect, finely serrated cusp<br />
Size: To at least 383 cm; both sexes mature at about 210–220 cm (somewhat variable);<br />
born at 35–50 cm.<br />
Distribution: Cosmopolitan in all tropical and temperate seas.<br />
Habitat and biology: The most wide-ranging of all sharks; typically oceanic and<br />
pelagic, from the surface to at least 600 m depth; capable of long migrations. Viviparous,<br />
with a yolk-sac placenta; gives birth annually or every second year to litters of usually<br />
30–40 pups (maximum 135) after a 9–12 month gestation period. Growth is fairly<br />
rapid with males and females maturing at 4–6 and 5–7 years respectively. Diet consists<br />
primarily of small pelagic fishes and cephalopods, as well as demersal fishes, small sharks<br />
and seabirds. Potentially dangerous to humans, but not particularly aggressive.<br />
Utilisation: Common bycatch of tuna and shark longline fisheries in Indonesia but<br />
infrequently landed by Borneo fishers. Valued for its fins, meat, skin, jaws and cartilage.
C a r c h a r h i n i f o r m e s 125<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: None.<br />
References: None.<br />
5<br />
Ventral head<br />
In Borneo: Known from a single record<br />
off Sabah; probably more widespread.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Upper tooth<br />
6<br />
Lower tooth<br />
7
126 S h a r k s a n d R a y s o f B o r n e o<br />
Milk Shark<br />
Rhizoprionodon acutus (Rüppell, 1837)<br />
1<br />
2<br />
Other names: Longman’s Dogshark, Fish Shark, White-eye Shark (English), Hiu Pilus,<br />
Hiu Plen, Mungsing, Hiu Pisang (Indonesian), Yu Muncung Susu (Malaysian)<br />
Identifying features:<br />
1 2 nd dorsal fin smaller than anal fin, its origin about opposite anal-fin insertion<br />
2 preanal ridges very long, about equal to anal-fin base length<br />
3 snout long and narrowly rounded (viewed ventrally)<br />
4 upper labial furrows long and prominent, 1.4–2.0% of total length<br />
5 hyomandibular pores alongside mouth corners enlarged in a distinct series, usually<br />
more than 16 in total for both sides<br />
6 teeth in both jaws with an oblique, narrowly triangular cusp<br />
Size: To about 110 cm (a 178 cm individual recorded off Africa); males and females<br />
mature at about 75–79 and 75–83 cm respectively; born at 30–40 cm.<br />
Distribution: Tropical Indo–West Pacific, from southeastern Africa to northern<br />
Australia and southern Japan, and Eastern Atlantic.<br />
Habitat and biology: A common species occurring mainly near the bottom, over<br />
continental and insular shelves, from the intertidal to about 200 m depth. Viviparous,<br />
with a yolk-sac placenta; gives birth each year to litters of usually 2–5 pups (maximum 8)<br />
after a gestation period of about 12 months; no seasonality in its reproductive cycle; size<br />
at birth varies regionally. Diet consists primarily of small fishes, and to a lesser extent<br />
cephalopods and crustaceans. Molecular analysis has identified differences between<br />
Indo-Malay and Australian populations that could be separate species.<br />
Utilisation: Commonly caught by inshore demersal gillnet fisheries. Used for its fins<br />
and meat, but of limited value due to its small size.
C a r c h a r h i n i f o r m e s 127<br />
Conservation status: IUCN Red List: Least Concern.<br />
Local synonyms: Carcharias (Scoliodon) walbeehmi Bleeker, 1856; Carcharias (Prionodon)<br />
sorrahkowah Bleeker, 1854; Carcharhinus borneensis (Bleeker): Yano et al. (2005).<br />
References: None.<br />
3<br />
4<br />
5 In Borneo: Mainly northern Borneo;<br />
from Sabah, Sarawak, and eastern and<br />
western Kalimantan.<br />
Ventral head<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Upper tooth<br />
6<br />
Lower tooth
128 S h a r k s a n d R a y s o f B o r n e o<br />
Grey Sharpnose Shark<br />
Rhizoprionodon oligolinx Springer, 1964<br />
1<br />
2<br />
Other names: None (English), Hiu Pilus, Hiu Pisang (Indonesian), Yu Muncung<br />
Minyak (Malaysian)<br />
Identifying features:<br />
1 2 nd dorsal fin smaller than anal fin, its origin opposite anal-fin insertion<br />
2 preanal ridges very long, about equal to anal-fin base length<br />
3 snout long and narrowly rounded (viewed ventrally)<br />
4 upper labial furrows short, 0.2–1.3% of total length<br />
5 hyomandibular pores alongside mouth corners enlarged in a distinct series, usually<br />
less than 14 in total for both sides<br />
6 teeth in both jaws with an oblique, narrowly triangular cusp<br />
7 small gap often visible at symphysis of upper and lower jaws when mouth closed<br />
(viewed ventrally)<br />
Size: To about 70 cm; males and females mature at about 29–45 and 32–41 cm<br />
respectively; born at 21–26 cm.<br />
Distribution: Tropical Indo–West Pacific, from the Red Sea to Indonesia and southern<br />
Japan (only a single validated record from the Gulf of Carpentaria in northern Australia).<br />
Habitat and biology: A small, common, inshore shark, schooling close inshore to at<br />
least 36 m depth. Viviparous, with a yolk-sac placenta; gives birth to litters of 3–5 pups<br />
after an unknown gestation period. Diet probably consists primarily of small fishes.<br />
Utilisation: Caught by inshore demersal gillnet fisheries. Used for its fins and meat, but<br />
of limited value due to its small size.<br />
Conservation status: IUCN Red List: Least Concern.
C a r c h a r h i n i f o r m e s 129<br />
Local synonyms: Scoliodon intermedius Garman, 1913; specimen figured as Carcharhinus<br />
sp. in Yano et al. (2005) appears to be of a small individual of this species.<br />
References: None.<br />
3<br />
4<br />
7<br />
Ventral head<br />
5<br />
In Borneo: Widely distributed.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Upper tooth<br />
6<br />
Lower tooth
130 S h a r k s a n d R a y s o f B o r n e o<br />
Pacific Spadenose Shark<br />
Scoliodon macrorhynchos (Bleeker, 1852)<br />
2<br />
1 3<br />
5<br />
4<br />
Other names: None (English), Mungsing, Hiu Kejen (Indonesian), Yu Padi, Yu Pasir,<br />
Yu Jereh (Malaysian)<br />
Identifying features:<br />
1 head and snout strongly depressed, trowel-shaped<br />
2 1 st dorsal fin large, closer to pelvic-fin base than to pectoral-fin base<br />
3 2 nd dorsal fin very small, its origin well behind origin of a much larger anal fin<br />
4 pectoral fin very small and triangular (not falcate)<br />
5 caudal fork shallowly concave<br />
6 teeth small with a strongly oblique, smooth-edged, blade-like cusp<br />
Size: To about 74 cm; both sexes mature at 25–36 cm; born at 12–15 cm.<br />
Distribution: Indo–Malayan region eastwards to Borneo, China and Taiwan; extremities<br />
of range need investigating.<br />
Habitat and biology: A common species that is very abundant in coastal waters,<br />
particularly near major freshwater outflows; often forming large schools near the<br />
bottom in rocky habitats. Viviparous, with a yolk-sac placenta; eggs released by females<br />
are very small with small yolk reserves so an unusual placenta and umbilical cord<br />
nourish the pups from a very early stage of the gestation period. Diet presumably<br />
consists primarily of crustaceans and small fishes.<br />
Utilisation: Common bycatch of the inshore demersal trawl and gillnet fisheries,<br />
particularly off Sarawak and Kalimantan. Used for its meat, but of limited value due to<br />
its small size.<br />
Conservation status: IUCN Red List: Not Evaluated.
C a r c h a r h i n i f o r m e s 131<br />
Local synonyms: Scoliodon laticaudus Müller & Henle: Yano et al. (2005), White et al.<br />
(2006b).<br />
References: White et al. (2010b).<br />
1<br />
Ventral head<br />
In Borneo: Mainly off western Borneo,<br />
including Sarawak, and western and eastern<br />
Kalimantan.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Upper tooth<br />
6<br />
Lower tooth
132 S h a r k s a n d R a y s o f B o r n e o<br />
Whitetip Reef Shark<br />
Triaenodon obesus (Rüppell, 1837)<br />
1<br />
2<br />
3<br />
1<br />
Other names: Whitetip Shark, Blunthead Shark (English), Hiu Bokem, Hiu Karang<br />
Buas, Hiu Coklat (Indonesian), Yu Sirip Putih (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal and upper lobe of caudal fin with distinctive white tips<br />
2 interdorsal ridge absent<br />
3 2 nd dorsal fin large, about half to three quarters height of 1 st dorsal fin<br />
4 snout very short, broadly rounded, tip blunt (viewed ventrally)<br />
5 upper and lower teeth smooth-edged with a long, narrow central cusp, flanked either<br />
side by a strong cusplet<br />
Size: To about 200 cm; males and females mature at 112–118 and 114–122 cm respectively;<br />
born at 52–60 cm.<br />
Distribution: Tropical Indo–Pacific from southeastern Africa to Central America,<br />
including the Pacific Islands.<br />
Habitat and biology: A reef-associated shark resting on or near the bottom in caves<br />
and crevices on coral reefs during the day, usually in clear shallow water in depths of<br />
8–40 m, but has also been reported from a depth of 330 m. Viviparous, with a yolk-sac<br />
placenta; gives birth to litters of about 2 or 3 pups (maximum 5) after a 10–12 month<br />
gestation period. Curious but rarely aggressive species. Known to be ciguatoxic in rare<br />
circumstances.<br />
Utilisation: Caught by inshore line and net fisheries, and probably adversely affected by<br />
dynamite fishing. Used for its fins and meat.<br />
Conservation status: IUCN Red List: Near Threatened.
C a r c h a r h i n i f o r m e s 133<br />
Local synonyms: None.<br />
References: None.<br />
4<br />
Upper tooth<br />
Ventral head<br />
5<br />
In Borneo: Mainly northern Borneo;<br />
from Sabah, Sarawak, and northwestern<br />
and eastern Kalimantan.<br />
Carcharhinidae (<strong>Whaler</strong> <strong>Sharks</strong>)<br />
Lower tooth
134 S h a r k s a n d R a y s o f B o r n e o<br />
Winghead Shark<br />
Eusphyra blochii (Cuvier, 1816)<br />
1<br />
2<br />
3<br />
5<br />
Other names: Slender Hammerhead (English), Hiu Capil, Hiu Bingkoh, Hiu Caping,<br />
Hiu Martil (Indonesian), Yu-tukul Palang, Yu Tanduk, Yu Palang, Yu Mata Jauh, Yu<br />
Bengkong, Yu Sanggul (Malaysian)<br />
Identifying features:<br />
1 head extremely broad, wing-shaped, its width about half of total length<br />
2 1 st dorsal fin very tall, strongly falcate<br />
3 origin of 1 st dorsal fin over pectoral-fin bases<br />
4 midline of head with a shallow indentation<br />
5 upper precaudal pit forming a narrow longitudinal groove (not crescentic)<br />
6 teeth similar in both jaws, relatively small, smooth-edged and oblique<br />
Size: To at least 186 cm; males and females mature at about 108 and 120 cm respectively;<br />
born at 32–47 cm.<br />
Distribution: Widepread in the tropical Indo–West Pacific, from the Persian Gulf to<br />
northern Australia and New Guinea, north to Taiwan.<br />
Habitat and biology: Occurs in shallow areas of the continental and insular shelves.<br />
Viviparous, with a yolk-sac placenta; gives birth to litters of 6–25 pups after a gestation<br />
period of 10–11 months. Diet consists primarily of small fishes, but also crustaceans and<br />
some cephalopods.
C a r c h a r h i n i f o r m e s 135<br />
Utilisation: Used for its meat but less important than other hammerheads due to its<br />
small average size.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: Zygaena latycephala van Hasselt, 1823.<br />
References: Stevens & Lyle (1989).<br />
4<br />
1<br />
In Borneo: A few records off Sabah,<br />
Sarawak and northwestern Kalimantan<br />
but probably widespread.<br />
Sphyrnidae (Hammerhead <strong>Sharks</strong>)<br />
Ventral head<br />
Upper tooth<br />
6<br />
Lower tooth
136 S h a r k s a n d R a y s o f B o r n e o<br />
Scalloped Hammerhead<br />
Sphyrna lewini (Griffith & Smith, 1834)<br />
1<br />
3<br />
4<br />
6<br />
5<br />
Other names: Kidney-headed Shark (English), Hiu Capil, Hiu Bingkoh, Hiu Caping,<br />
Hiu Martil, Hiu Parang (Indonesian), Yu-tukul Sanggul, Yu Tukul, Yu Palang, Yu Mata<br />
Jauh, Yu Bengkong, Yu Sanggul, Yu Parang (Malaysian)<br />
Identifying features:<br />
1 head broad, its width less than a third of total length<br />
2 anterior margin of head arched, barely indented at midline<br />
3 1 st dorsal fin tall, moderately falcate<br />
4 2 nd dorsal fin short with long rear tip and weakly concave posterior margin<br />
5 anal-fin base barely longer than 2 nd dorsal-fin base<br />
6 upper precaudal pit forming a crescentic groove<br />
7 upper teeth narrowly triangular (erect anteriorly becoming oblique posteriorly)<br />
Size: To at least 350 cm, possibly to 420 cm; males mature at 140–180 cm and females<br />
at 200–230 cm; born at 40–50 cm.<br />
Distribution: Cosmopolitan in all tropical and warm temperate seas.<br />
Habitat and biology: The most abundant tropical hammerhead; occurs over continental<br />
and insular shelves and adjacent deep water, from the surface to at least 275 m depth;<br />
juveniles usually close inshore. Viviparous, with a yolk-sac placenta; gives birth to litters<br />
of 13–41 (mean 25) pups in October to January after a gestation of 9–10 months. Males<br />
and females mature at 7–10 and about 15 years respectively. Diet consists primarily of<br />
bony fishes and cephalopods, but also sharks and rays. Potentially dangerous to humans.<br />
Often form large diurnal aggregations that disperse to deepwater at night to feed. Two<br />
distinct forms have been identified from molecular analysis of Borneo specimens but,
C a r c h a r h i n i f o r m e s 137<br />
although there appear to be differences in the shape of the dark marking on the lower<br />
caudal lobe, these forms have not yet been clearly distinguished based on their morphology.<br />
Utilisation: Retained for their fins, meat and cartilage. Population declines recorded in<br />
some parts of the Indo–West Pacific.<br />
Conservation status: IUCN Red List: Endangered.<br />
Local synonyms: Zygaena indica van Hasselt, 1823.<br />
References: Stevens & Lyle (1989); White et al. (2008).<br />
2<br />
1<br />
Ventral head<br />
In Borneo: Probably widely distributed,<br />
but few records from southern Kalimantan.<br />
Sphyrnidae (Hammerhead <strong>Sharks</strong>)<br />
Upper tooth<br />
7<br />
Lower tooth
138 S h a r k s a n d R a y s o f B o r n e o<br />
Great Hammerhead<br />
Sphyrna mokarran (Rüppell, 1837)<br />
3<br />
4<br />
6<br />
1<br />
5<br />
Other names: None (English), Hiu Capil, Hiu Bingkoh, Hiu Caping, Hiu Martil, Hiu<br />
Parang (Indonesian), Yu Tukul, Yu Parang (Malaysian)<br />
Identifying features:<br />
1 head broad, its width less than a third of total length<br />
2 anterior margin of head nearly straight, shallowly indented at midline<br />
3 1 st dorsal fin very tall, strongly falcate in adults<br />
4 2 nd dorsal fin tall with short rear tip and strongly concave posterior margin<br />
5 anal-fin base longer than 2 nd dorsal-fin base<br />
6 upper precaudal pit forming a crescentic groove<br />
7 upper teeth triangular and oblique, with serrations<br />
Size: To at least 450 cm (although some records to 600 cm); in Australia, males and<br />
females mature at about 225 and 210–228 cm (mature at a much larger size in South<br />
African populations); born at 50–70 cm.<br />
Distribution: Cosmopolitan in all tropical and warm temperate seas.<br />
Habitat and biology: Continental and insular shelves and semi-oceanic, from the<br />
surface, and from very shallow water, to at least 80 m depth. Viviparous, with a yolksac<br />
placenta; gives birth to litters of 6–42 pups after a gestation period of 11 months.<br />
Diet consists primarily of bony fishes and elasmobranchs, but also cephalopods and<br />
crustaceans. Potentially dangerous to humans and known to intimidate spear fishers<br />
occasionally, but most often timid when observed.<br />
Utilisation: Retained for their fins, meat and cartilage. Large population declines
C a r c h a r h i n i f o r m e s 139<br />
recorded in some areas.<br />
Conservation status: IUCN Red List: Endangered.<br />
Local synonyms: None.<br />
References: Stevens & Lyle (1989).<br />
2<br />
1<br />
Ventral head<br />
In Borneo: Recorded from Sabah and<br />
Sarawak, but probably widely distributed.<br />
Sphyrnidae (Hammerhead <strong>Sharks</strong>)<br />
Upper tooth<br />
7<br />
Lower tooth
140 S h a r k s a n d R a y s o f B o r n e o<br />
Narrow Sawfish<br />
Anoxypristis cuspidata (Latham, 1794)<br />
3<br />
1<br />
2<br />
Other names: Pointed Sawfish (English), Cucut Gergaji, Hiu Parang, Pamprang,<br />
Parangpang (Indonesian), Yu Gergaji Jarang, Yu Parangan, Beroi, Kan Sua, Yu Gergaji, Yu<br />
Parang, Yu Todak (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal-fin origin well posterior to pelvic-fin origins<br />
2 ventral lobe of caudal fin well developed<br />
3 rostral saw very long and narrow<br />
4 18–23 pairs of rostral teeth<br />
5 rostral teeth absent from base of saw<br />
6 rostral teeth slightly closer together near tip than at middle of saw<br />
Size: To at least 350 cm, records to 600 cm very doubtful; males and females mature at<br />
about 200 and 225 cm respectively; born at about 70 cm.<br />
Distribution: Tropical Indo–West Pacific, from the Red Sea to New Guinea, including<br />
tropical eastern and western Australia, and southern Japan.<br />
Habitat and biology: Demersal in coastal embayments to well offshore (to at least<br />
40 m depth). Juveniles mainly coastal, shallower than 10 m. Viviparous, with yolk-sac<br />
dependency; gives birth to litters of about 15 pups after a 4–5 month gestation. Females<br />
and males mature at 4 and 5 years respectively. Diet probably consists of small fishes and<br />
invertebrates.<br />
Utilisation: Still caught occasionally by demersal tangle net and trawl fisheries in the<br />
Arafura Sea but possibly extinct in parts of the Indo–Pacific. Presumably once used for<br />
its meat, skin and cartilage. The rostral saw has been traditionally kept as a curio.
P r i s t o i d e i 141<br />
Conservation status: IUCN Red List: Critically Endangered; Appendix I of CITES.<br />
Local synonyms: None.<br />
References: Manjaji (2002a, b).<br />
Caudal fin<br />
2<br />
In Borneo: Single records from southern<br />
Kalimantan and near Sandakan, northeastern<br />
Sabah.<br />
Pristidae (Sawfishes)<br />
6<br />
4 5<br />
Ventral head
142 S h a r k s a n d R a y s o f B o r n e o<br />
Freshwater Sawfish<br />
Pristis microdon Latham, 1794<br />
3<br />
1<br />
2<br />
Other names: Great-tooth Sawfish, Wide Sawfish (English), Hiu Gergaji, Hiu<br />
Parang (Indonesian), Yu-gergaji Seragam, Yu Parangan, Yu Gergaji, Yu Parang, Yu Todak<br />
(Malaysian)<br />
Identifying features:<br />
1 1 st dorsal-fin origin well forward of pelvic-fin origins<br />
2 ventral lobe of caudal-fin short, but conspicuous<br />
3 rostral saw short and broad<br />
4 17–23 pairs of rostral teeth<br />
5 rostral teeth present near base of saw<br />
6 rostral teeth near tip and at middle of saw a similar distance apart<br />
Size: Reported to reach about 700 cm, but probably closer to 600 cm; both sexes<br />
maturing at 240–300 cm; born at 70–90 cm.<br />
Distribution: Tropical Indo–West Pacific, from India to New Guinea, including<br />
Australia; poorly defined, possibly more widespread.<br />
Habitat and biology: Lives on or near the bottom in estuaries, rivers and lakes, as well<br />
as coastal marine waters, to depths of at least 60 m; elsewhere, juveniles are most common<br />
in freshwater with large adults in estuaries or the sea. Probably breeds in estuaries.<br />
Viviparous, with yolk-sac dependency; females, which take almost a decade to reach<br />
maturity, have litters of up to 12 pups after a 5 month gestation. Diet probably changes<br />
during its life, consisting mainly of small fishes and demersal invertebrates. Uses saw to<br />
stun prey, and can also inflict serious injury to humans unless handled with care.<br />
Utilisation: Occasionally caught in the Kinabatangan River using demersal gillnets by<br />
artisanal fishers. Highly susceptible to tangle nets and extant populations are likely to be
P r i s t o i d e i 143<br />
seriously depleted. This form of fishing may have been responsible for local extinctions<br />
in other rivers of the region. Once used widely for its fins and meat (both of very high<br />
value), and skin and cartilage. The rostral saw has been traditionally kept as a curio.<br />
Conservation status: IUCN Red List: Critically Endangered; Appendix II of CITES.<br />
Local synonyms: None.<br />
References: Manjaji (2002a, b).<br />
Caudal fin<br />
2<br />
In Borneo: Occurs in the Kinabatangan<br />
River; possibly once more widespread in<br />
larger rivers and adjacent marine bays of<br />
the region.<br />
Pristidae (Sawfishes)<br />
6<br />
4 5<br />
Ventral head
144 S h a r k s a n d R a y s o f B o r n e o<br />
Green Sawfish<br />
Pristis zijsron Bleeker, 1851<br />
3<br />
1<br />
2<br />
Other names: Narrowsnout Sawfish, Sawfish (English), Hiu Gergaji, Hiu Parang<br />
(Indonesian), Yu-gergaji Silih, Yu Parangan, Yu Gergaji, Yu Parang, Yu Todak (Malaysian)<br />
Identifying features:<br />
1 1 st dorsal-fin origin slightly posterior to pelvic-fin origins<br />
2 no obvious ventral caudal-fin lobe<br />
3 rostral saw moderately long and slender<br />
4 24–29 pairs of rostral teeth<br />
5 rostral teeth present near base of saw<br />
6 rostral teeth much closer together near tip than at mid-length of saw<br />
Size: To at least 540 cm, possibly 730 cm; both sexes mature at about 300 cm; born at<br />
about 80 cm.<br />
Distribution: Tropical Indo–West Pacific, from southeastern Africa to New Guinea<br />
and Australia, north in the Pacific to Vietnam.<br />
Habitat and biology: Demersal in coastal bays and estuaries, also well offshore. Viviparous,<br />
with yolk-sac dependency; gives birth to litters of about 12 pups. Matures at about<br />
9 years in Australian populations. Diet consists of small schooling fishes and demersal<br />
invertebrates.<br />
Utilisation: Now caught rarely by demersal gill net and trawlers in the Indonesian<br />
Archipelago. Apparently extinct through much of its range. Once, used widely for its<br />
meat, fins, skin and cartilage. The rostral saw has been traditionally kept as a curio.<br />
Conservation status: IUCN Red List: Critically Endangered; Appendix I of CITES.<br />
Local synonyms: Pristis dubius Bleeker, 1852.<br />
References: Manjaji (2002a, b).
P r i s t o i d e i 145<br />
6<br />
Caudal fin<br />
2<br />
In Borneo: Recent records from central<br />
Sarawak (near Bintulu), and northeastern<br />
(Labuk River) and eastern Sabah (Kinabatangan<br />
River); holotype collected in the<br />
19 th century from southern Kalimantan.<br />
Pristidae (Sawfishes)<br />
4 5<br />
Ventral head
146 S h a r k s a n d R a y s o f B o r n e o<br />
Shark Ray<br />
Rhina ancylostoma Bloch & Schneider, 1801<br />
3<br />
5<br />
1<br />
2<br />
Other names: Bowmouth Guitarfish, Mud Skate (English), Hiu Barong, Kupukupu<br />
Brangkas, Yunbun Karang (Indonesian), Pari-kemejan Kepala Keras, Yu Kemejan<br />
(Malaysian)<br />
Identifying features:<br />
1 1 st dorsal-fin origin slightly anterior to pelvic-fin origin<br />
2 caudal fin lunate, upper and lower lobes almost symmetrical<br />
3 head and snout thick, margin broadly rounded<br />
4 spiracles without skin folds on posterior margin<br />
5 ridges on orbits, mid-body and shoulders bearing clusters of strong thorns<br />
Size: To at least 270 cm; males mature at about 150–175 cm; a 51 cm individual was a<br />
newborn.<br />
Distribution: Widespread in the Indo–West Pacific, from southern Africa to New<br />
Guinea and Australia, and north to southern Japan.<br />
Habitat and biology: Demersal on soft substrates near coastal areas and reefs; to at<br />
least 70 m, but depth distribution is poorly defined. Viviparous, with yolk-sac dependency;<br />
biology poorly known, one pregnant female contained 9 mid-term embryos<br />
(27–31 cm). Diet consists primarily of bottom-dwelling crustaceans and molluscs.<br />
Handling large adults can be hazardous. They create a nuisance to trawl fishers as they<br />
are difficult to remove and their roughness can damage smaller species in the catch.
R h i n o i d e i , R h y n c h o b a t o i d e i & R h i n o b a t o i d e i 147<br />
Utilisation: Caught occasionally by demersal tangle net, and possibly by trawl and<br />
longline fisheries. Used throughout the region for fresh and dried-salted meat, and their<br />
high-value fins.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: None.<br />
References: Devadoss & Batcha (1995); Frimodt (1995).<br />
5<br />
4<br />
Lateral head<br />
In Borneo: Known from coastal areas of<br />
Sabah, Sarawak, and western and southern<br />
Kalimantan.<br />
Rhinidae (Shark Rays)<br />
3<br />
Ventral head
148 S h a r k s a n d R a y s o f B o r n e o<br />
Whitespotted Wedgefish<br />
Rhynchobatus australiae Whitley, 1939<br />
6<br />
5<br />
2<br />
3<br />
1<br />
4<br />
4<br />
8<br />
Other names: Whitespotted Guitarfish, Whitespot Ray, Whitespot Shovelnose Ray<br />
(English), Paredung, Pangrum, Hiu Lontar, Liongbun, Petong, Hiu Kemenyan, Hiu<br />
Minsong (Indonesian), Pari-kemejan Tompok Putih, Yu Kia-kia (Malaysian)<br />
Identifying features:<br />
1 origin of 1 st dorsal-fin slightly posterior to pelvic-fin origin<br />
2 a diffuse-edged, black spot on each pectoral fin of juveniles (less than 60 cm),<br />
becoming faint or absent in large adults<br />
3 diagonal row of three equidistant white spots usually above black pectoral spot<br />
4 1 st dorsal fin less than 1.5 times height of 2 nd (in adults)<br />
5 no large dark spots over or behind eyes<br />
6 snout bottle-shaped, constricted slightly near tip<br />
7 spiracles with two skin folds on posterior margin<br />
8 caudal fin with a well-developed lower lobe<br />
Size: To at least 270 cm; males and females mature at about 130 and 155 cm respectively;<br />
born at 46–50 cm.<br />
Distribution: Tropical Indo–West Pacific from Taiwan to northern Australia, including the<br />
Philippines; probably wider ranging in the Indian Ocean but currently not well defined<br />
and possibly includes additional unidentified species.<br />
Habitat and biology: Demersal on soft bottoms near the coast and sand patches on<br />
coral reefs, inshore to depths of at least 60 m. Viviparous, with yolk-sac dependency;<br />
gives birth to litters of 7–19 pups after an unknown gestation period; no apparent<br />
reproductive synchronicity. Diet consists primarily of large demersal crustaceans and<br />
molluscs. In the past, has been confused with another large wedgefish, R. djiddensis, from
R h i n o i d e i , R h y n c h o b a t o i d e i & R h i n o b a t o i d e i 149<br />
the Red Sea and western Indian Ocean.<br />
Utilisation: Caught most commonly by demersal tangle net, and occasionally trawl and<br />
longline fisheries. Sought after for its fins and meat, which are both highly valued.<br />
Conservation status: IUCN Red List: Vulnerable; of long-term conservation concern.<br />
Local synonyms: None.<br />
References: None.<br />
6<br />
Ventral head<br />
In Borneo: Mainly western and northern<br />
Borneo.<br />
Rhynchobatidae (Wedgefishes)<br />
7<br />
Dorsal view of eyes<br />
and spiracles
150 S h a r k s a n d R a y s o f B o r n e o<br />
Smoothnose Wedgefish<br />
Rhynchobatus laevis (Bloch & Schneider, 1801)<br />
6<br />
5<br />
2<br />
1<br />
4<br />
4<br />
8<br />
3<br />
Other names: Giant Guitarfish, Sandshark, Shovelnose Shark (English), Paredung,<br />
Pangrum, Hiu Lontar, Liongbun, Petong, Hiu Kemenyan, Hiu Minsong (Indonesian),<br />
Pari Kemejan, Yu Kia-kia (Malaysian)<br />
Identifying features:<br />
1 origin of 1 st dorsal-fin almost over pelvic-fin origin<br />
2 a sharp-edged, black spot on each pectoral fin of juveniles (less than 60 cm), often<br />
forming a ring in large adults<br />
3 black pectoral spot usually closely surrounded by 3 white spots (no diagonal upper<br />
row of spots)<br />
4 1 st dorsal fin exceeding 1.5 times height of 2 nd (in large adults)<br />
5 no large dark spots around eyes<br />
6 snout not obviously constricted near tip<br />
7 spiracles with two skin folds on posterior margin<br />
8 caudal fin with a well-developed lower lobe<br />
Size: Possibly to at least 250 cm, maybe larger; size of maturity and birth presently<br />
unknown.<br />
Distribution: Considered to be widespread in the tropical Indo–West Pacific, from<br />
southeastern Africa to Indonesia, and north to southern Japan. Populations across this<br />
broad region may represent different species; probably not occurring in Australian seas.<br />
Habitat and biology: Demersal on soft bottoms and near coral reefs, as well as inshore<br />
and offshore on the continental shelf. Viviparous, with yolk-sac dependency;<br />
reproduction not well known. Diet probably consists of demersal invertebrates and<br />
small fishes.
R h i n o i d e i , R h y n c h o b a t o i d e i & R h i n o b a t o i d e i 151<br />
Utilisation: Caught occasionally by demersal tangle net, trawl and longline fisheries.<br />
Sought after for its fins and meat, which are both highly valued.<br />
Conservation status: IUCN Red List: Vulnerable; of long-term conservation concern.<br />
Local synonyms: None.<br />
References: None.<br />
6<br />
Ventral head<br />
In Borneo: Recorded from off northeastern<br />
Sabah.<br />
Rhynchobatidae (Wedgefishes)<br />
7<br />
Dorsal view of eyes<br />
and spiracles
152 S h a r k s a n d R a y s o f B o r n e o<br />
Broadnose Wedgefish<br />
Rhynchobatus springeri Compagno & Last, 2010<br />
6<br />
2<br />
4<br />
5 1<br />
4<br />
3<br />
8<br />
Other names: None (English), Paredung, Pangrum, Hiu Lontar, Liongbun, Petong,<br />
Hiu Kemenyan, Hiu Minsong (Indonesian), Pari Kemejan, Yu Kia-kia (Malaysian)<br />
Identifying features:<br />
1 origin of 1 st dorsal-fin above or slightly behind pelvic-fin origin<br />
2 a large, sharp-edged, black spot on each pectoral fin of juveniles and adults<br />
3 black pectoral spot usually closely surrounded by 4–5 white spots (no diagonal upper<br />
row of spots)<br />
4 1 st dorsal fin less than 1.5 times height of 2 nd (in adults)<br />
5 usually with dark markings on and/or behind eyes<br />
6 snout broad with a convex margin<br />
7 spiracles with two skin folds on posterior margin<br />
8 caudal fin with a well-developed lower lobe<br />
Size: Adult males to at least 130 cm, females possibly larger.<br />
Distribution: Poorly defined, probably Thailand, Malaysia, Philippines, Singapore and<br />
Indonesia.<br />
Habitat and biology: Demersal on soft bottoms in coastal bays and estuarine<br />
habitats, otherwise poorly known. Probably viviparous, with yolk-sac dependency. Diet<br />
unknown, but most wedgefishes feed primarily on demersal crustaceans, molluscs and<br />
small fishes.<br />
Utilisation: Caught occasionally by tangle net fishers. Utilised for its meat, fins<br />
(extremely high value) and cartilage.
R h i n o i d e i , R h y n c h o b a t o i d e i & R h i n o b a t o i d e i 153<br />
Conservation status: IUCN Red List: Not Evaluated; of long-term conservation<br />
concern.<br />
Local synonyms: None.<br />
References: Compagno & Last (2010).<br />
6<br />
Ventral head<br />
In Borneo: A few records from brackish<br />
habitats of southern Sarawak.<br />
Rhynchobatidae (Wedgefishes)<br />
7<br />
Dorsal view of eyes<br />
and spiracles
154 S h a r k s a n d R a y s o f B o r n e o<br />
Clubnose Guitarfish<br />
Glaucostegus thouin (Anonymous, 1798)<br />
1<br />
4<br />
2<br />
3<br />
6<br />
Other names: None (English), Cucut Mandrong, Liongbun (Indonesian), Parikemejan<br />
Muncung Panjang, Yu Kemejan, Yu Kia-kia (Malaysian)<br />
Identifying features:<br />
1 snout tip enlarged to form an elongate knob<br />
2 dorsal surface plain, without blotches or spots<br />
3 denticles along midline of dorsal surface distinct<br />
4 clear part of snout sharply demarcated from rest of head near eyes<br />
5 nostrils broad and slit-like with narrow nasal flaps<br />
6 lower lobe of caudal fin short<br />
Size: To about 300 cm; largest observed from the region 240 cm.<br />
Distribution: Widespread in the Indo–West Pacific from the Red Sea through Thailand,<br />
Vietnam, Malaysia, Indonesia, New Guinea and Japan; apparently not known from<br />
Peninsula Malaysia or nearby Philippines.<br />
Habitat and biology: Demersal on insular and continental shelves to about 100 m<br />
depth; local depth information not reliable, reported from inshore but probably more<br />
abundant offshore on the continental shelf. Biology poorly known, presumably viviparous,<br />
with yolk-sac dependency. Diet consists of benthic invertebrates and small fishes.<br />
Utilisation: Caught infrequently by local demersal tangle net and trawl fisheries. Used<br />
opportunistically for its meat and fins (both very high value), as well as skin and cartilage;<br />
an esteemed food fish in India. Likely to become a major conservation concern if fished<br />
at existing levels.<br />
Conservation status: IUCN Red List: Vulnerable.
R h i n o i d e i , R h y n c h o b a t o i d e i & R h i n o b a t o i d e i 155<br />
Local synonyms: Rhinobatos thouin (Anonymous [Lacepède]): Yano et al. (2005), White<br />
et al. (2006b), also misspelled as Rhinobatos thouini.<br />
References: None.<br />
5<br />
Ventral head<br />
In Borneo: Known from Sarawak,<br />
Sabah and southeastern and western<br />
Kalimantan.<br />
Rhinobatidae (Shovelnose Rays)<br />
Lateral tail and dorsal fins<br />
6
156 S h a r k s a n d R a y s o f B o r n e o<br />
Giant Guitarfish<br />
Glaucostegus typus (Bennett, 1830)<br />
1<br />
4<br />
2<br />
3<br />
6<br />
Other names: Common Shovelnose Ray, Giant Shovelnose Ray, Shovelnose Ray,<br />
Shovelnose Shark (English), Hiu Cermin, Paitpait, Pari Bandrong, Pari Gitar, Pari<br />
Kekeh, Petong (Indonesian), Pari-kemejan Muncung Pendek, Yu Pari (Malaysian)<br />
Identifying features:<br />
1 snout tip not forming a knob<br />
2 dorsal surface plain, without blotches or spots<br />
3 denticles along midline of dorsal surface distinct<br />
4 clear part of snout sharply demarcated from rest of head near eyes<br />
5 nostrils broad and slit-like with narrow nasal flaps<br />
6 lower lobe of caudal fin short<br />
Size: To about 270 cm, reports to 400 cm are likely to be erroneous; maturing at 150–<br />
180 cm; born at 38–40 cm.<br />
Distribution: Widespread in the Indo–West Pacific from India through Indonesia to<br />
northern Australia and possibly Melanesia; north in the Pacific to Thailand but now<br />
apparently absent in the Philippines.<br />
Habitat and biology: Demersal on insular and continental shelves, also known from<br />
estuaries and sometimes in freshwater; juveniles occur inshore around mangroves and<br />
atolls, adults occur further offshore to depths of about 100 m. Viviparous, with yolk-sac<br />
dependency; biology poorly known; reportedly able to breed in freshwater. Diet consists<br />
largely of shellfish (prawns and crabs), as well as small fishes and cephalopods.<br />
Utilisation: Caught often by demersal tangle net fisheries, and sometimes by trawling.
R h i n o i d e i , R h y n c h o b a t o i d e i & R h i n o b a t o i d e i 157<br />
Marketed for its meat and fins (both very high value), and skins and cartilage; sold fresh<br />
and possibly dried and salted.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Rhinobatos typus Bennett: Yano et al. (2005), White et al. (2006b).<br />
References: None.<br />
5<br />
Ventral head<br />
In Borneo: Primarily from eastern<br />
Borneo, also known from Sarawak and<br />
western Kalimantan.<br />
Rhinobatidae (Shovelnose Rays)<br />
Lateral tail and dorsal fins<br />
6
158 S h a r k s a n d R a y s o f B o r n e o<br />
Taiwan Guitarfish<br />
Rhinobatos formosensis Norman, 1926<br />
1<br />
2<br />
3<br />
4 6<br />
Other names: None (English), none (Indonesian), Yu Kemejan (Malaysian)<br />
Identifying features:<br />
1 snout tip not forming a knob<br />
2 dorsal surface usually plain (often with faint orange blotches)<br />
3 denticles along midline of dorsal surface very small<br />
4 clear part of snout not sharply demarcated from rest of head near eyes<br />
5 nostrils with broad apertures and wide nasal flaps<br />
6 lower lobe of caudal fin short<br />
7 young covered with small ocelli<br />
Size: To at least 84 cm; males mature by 64 cm; size at birth unknown (late term<br />
embryos up to 20 cm in length).<br />
Distribution: Known from off Malaysian Borneo, the Philippines and Taiwan.<br />
Habitat and biology: Demersal inshore; biology and depth information largely<br />
unknown. Presumably viviparous, with yolk-sac dependency as with other members<br />
of the family. Diet probably consists mainly of bottom-dwelling invertebrates such as<br />
marine worms and shellfishes.<br />
Utilisation: Taken occasionally as bycatch of inshore trawl fisheries. Too rarely caught<br />
to be of value; probably used for its meat when landed.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Rhinobatos cf. schlegelii Müller & Henle: Compagno et al. (2005b).<br />
References: Compagno et al. (2005b).
R h i n o i d e i , R h y n c h o b a t o i d e i & R h i n o b a t o i d e i 159<br />
5<br />
Ventral head<br />
7<br />
Embryo (19 cm)<br />
In Borneo: Off Sarawak and Sabah.<br />
Rhinobatidae (Shovelnose Rays)<br />
1 st dorsal fin 2 nd dorsal fin
160 S h a r k s a n d R a y s o f B o r n e o<br />
Shortlip Numbfish<br />
Narcine brevilabiata Bessednov, 1966<br />
1<br />
3<br />
4<br />
2<br />
5<br />
Other names: Shortlip Electric Ray (English), Pari Listrik, Pari Kontak (Indonesian),<br />
Pari Karan Tompok Besar (Malaysian)<br />
Identifying features:<br />
1 disc subcircular, thick and flabby<br />
2 eyes raised, not embedded in skin<br />
3 two similar-sized dorsal fins<br />
4 dark spots on upper snout numerous, distinctly smaller than eye<br />
5 3–5 pairs of very large, dark blotches on disc<br />
6 exposed part of tooth bands in jaws relatively broad<br />
7 mouth subequal to or only slightly narrower than width between lateral edges of<br />
nostrils<br />
8 ventral surfaces of pelvic and pectoral fins often broadly dark edged<br />
Size: To at least 32 cm.<br />
Distribution: Known from the South China Sea in the Northwest Pacific, from<br />
Malaysia to China; possibly extends north to the East China and Yellow Seas.<br />
Habitat and biology: Demersal on the inner continental shelf, known from depths of<br />
41–70 m. Biology largely unknown, presumably viviparous, with yolk-sac dependency.
T o r p e d i n o i d e i 161<br />
Diet presumably consists of small fishes and benthic invertebrates; mouth can protrude<br />
as a tube to extract prey from the substrate. Like other members of the genus, the<br />
electric <strong>org</strong>ans in the disc are capable of delivering a moderate shock on direct contact.<br />
Utilisation: Caught regularly as bycatch of bottom trawling. A low-grade food species<br />
and used for fish meal.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: None.<br />
References: Carvalho (1999).<br />
7<br />
6<br />
Mouth and nostrils<br />
In Borneo: Off Sarawak and eastern<br />
Sabah.<br />
Narcinidae (Numbfishes)<br />
Juvenile (14 cm)
162 S h a r k s a n d R a y s o f B o r n e o<br />
Rough Numbfish<br />
Narcine lingula Richardson, 1846<br />
1<br />
4<br />
2<br />
5<br />
3<br />
Other names: Chinese Numbfish, Rough Electric Ray (English), Pari Listrik, Pari<br />
Kontak (Indonesian), none (Malaysian)<br />
Identifying features:<br />
1 disc subcircular to oval, thick and flabby<br />
2 eyes not embedded in skin<br />
3 two similar-sized dorsal fins<br />
4 dark spots on upper snout usually sparse, size similar to eye (atypically smaller)<br />
5 upper disc with greatly enlarged, symmetrically arranged blotches<br />
6 exposed part of tooth bands in jaws relatively narrow<br />
7 mouth subequal to or only slightly narrower than width between lateral edges of<br />
nostrils<br />
8 ventral surfaces of pelvic and pectoral fins not dark edged<br />
Size: To at least 38 cm; males mature at about 24 cm.<br />
Distribution: Patchily distributed in the Indo–West Pacific, possibly from eastern India<br />
to Hong Kong, and south to Java; may consist of more than a single species each with<br />
more restricted ranges.<br />
Habitat and biology: Demersal in shallow inshore waters on the continental shelf.<br />
Biology unknown, presumably viviparous, with yolk-sac dependency. Diet is likely to<br />
consist of small fishes and invertebrates. Numbfishes of the region are not well known<br />
and some names currently used may change as more information becomes available.
T o r p e d i n o i d e i 163<br />
Like other members of the genus, the electric <strong>org</strong>ans in the disc are capable of delivering<br />
a moderate shock on direct contact.<br />
Utilisation: Caught occasionally in the region by bottom trawl. Not considered for<br />
food and used for fish meal.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: None.<br />
References: Carvalho (1999); Carvalho et al. (1999).<br />
7<br />
6<br />
Mouth and nostrils<br />
In Borneo: Uncommon locally, known<br />
from southern Sarawak and eastern<br />
Sabah.<br />
Narcinidae (Numbfishes)
164 S h a r k s a n d R a y s o f B o r n e o<br />
Darkspotted Numbfish<br />
Narcine maculata (Shaw, 1804)<br />
1<br />
2<br />
5<br />
3<br />
4<br />
Other names: Darkfin Numbfish, Darkspotted Electric Ray (English), Pari Listrik,<br />
Pari Kontak (Indonesian), Pari-karan Hitam, Pari Karan, Pari Letrik, Pari Serban<br />
(Malaysian)<br />
Identifying features:<br />
1 disc subcircular, thick and flabby<br />
2 eyes not embedded in skin<br />
3 two similar-sized dorsal fins<br />
4 dark spots on upper snout similar in size to eye<br />
5 upper disc without greatly enlarged, symmetrically arranged blotches<br />
6 exposed part of tooth bands in jaws relatively narrow<br />
7 mouth usually narrower than width between lateral edges of nostrils<br />
8 ventral surfaces of pelvic and pectoral fins not broadly dark edged<br />
Size: To at least 40 cm; males mature at about 24 cm.<br />
Distribution: Widespread in the Indo–West Pacific, from western India to China,<br />
south to Java; possibly wider ranging.<br />
Habitat and biology: Demersal inshore and offshore on the continental shelf, known<br />
from depths to about 70 m. Biology largely unknown, presumably viviparous, with
T o r p e d i n o i d e i 165<br />
yolk-sac dependency. Diet probably consists of small fishes and benthic invertebrates;<br />
mouth can protrude as a tube to extract prey from the substrate. Like other members of<br />
the genus, the electric <strong>org</strong>ans in the disc are capable of delivering a moderate shock on<br />
direct contact.<br />
Utilisation: Only caught rarely by bottom trawl. Considered as low grade for food and<br />
used for fish meal.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: None.<br />
References: Carvalho (1999); Carvalho et al. (1999).<br />
7<br />
6<br />
Mouth and nostrils<br />
In Borneo: Recorded locally from<br />
southern Sarawak; another specimen<br />
recorded in literature from unspecified<br />
locality off Sabah.<br />
Narcinidae (Numbfishes)
166 S h a r k s a n d R a y s o f B o r n e o<br />
Spot-tail Sleeper Ray<br />
Narke dipterygia (Bloch & Schneider, 1801)<br />
2<br />
4<br />
3<br />
1<br />
5<br />
Other names: Numbray, Spot-tail Electric Ray (English), Pari Listrik, Pari Kontak<br />
(Indonesian), Pari Karan (Malaysian)<br />
Identifying features:<br />
1 one dorsal fin<br />
2 eyes very small, partly embedded in skin<br />
3 disc moderately enlarged, its length (measured to cloaca) slightly longer than tail<br />
4 spiracle lateral to eye<br />
5 caudal fin longer than deep<br />
6 nostrils slit-like<br />
7 mouth very small and not strongly arched<br />
8 undersurfaces of disc and pelvic fin uniformly pale<br />
Size: To at least 18 cm; males mature by about 15 cm.<br />
Distribution: Tropical Indo–West Pacific, from Oman to Malaysia and north to Japan;<br />
may occur off Sumatra.<br />
Habitat and biology: Demersal on the continental shelf, both inshore and offshore;<br />
locally in 70–95 m depth. Biology largely unknown, presumably viviparous, with yolksac<br />
dependency. Diet also unknown but probably consists of small invertebrates, such as<br />
polychaetes that live in mud and sand.
T o r p e d i n o i d e i 167<br />
Utilisation: Infrequent bycatch of both inshore and offshore bottom trawl fisheries<br />
operating over soft bottoms on the continental shelf. Not used for food.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: None.<br />
References: Compagno & Last (1999b).<br />
6<br />
7<br />
Mouth and nostrils<br />
In Borneo: Off central Sarawak.<br />
Narkidae (Sleeper Rays)<br />
8<br />
8<br />
Ventral
168 S h a r k s a n d R a y s o f B o r n e o<br />
Finless Sleeper Ray<br />
Temera hardwickii Gray, 1831<br />
4<br />
3<br />
2 1<br />
5<br />
Other names: Finless Electric Ray (English), Pari Listrik, Pari Kontak (Indonesian),<br />
Pari Karan Belangkas, Pari Karas (Malaysian)<br />
Identifying features:<br />
1 no dorsal fins<br />
2 eyes bulging, not embedded in skin<br />
3 disc greatly enlarged, its length (measured to cloaca) much longer than tail<br />
4 spiracle posterior to eye<br />
5 caudal fin about as long as deep<br />
6 nostrils almost circular<br />
7 mouth small and not strongly arched<br />
8 undersurfaces of disc and pelvic fin with broad brownish margins<br />
Size: Dubiously reported to about 46 cm, but mostly less than 15 cm; both sexes<br />
mature at about 11–12 cm.<br />
Distribution: Tropical Indo–West Pacific, from the Andaman Sea off Myanmar to<br />
Singapore, and Vietnam.<br />
Habitat and biology: Demersal on the continental shelf. Biology poorly known,<br />
viviparous, with yolk-sac dependency; one pregnant female had 4 pups. Diet presumably<br />
consists of small invertebrates. Paired electric <strong>org</strong>ans in the disc are capable of delivering
T o r p e d i n o i d e i 169<br />
a moderate shock on direct contact.<br />
Utilisation: Caught rarely by bottom trawl on the continental shelf. Not used for food.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: None.<br />
References: Compagno & Last (1999b).<br />
6<br />
7<br />
Mouth and nostrils<br />
In Borneo: Single record from the South<br />
China Sea off southwestern Sarawak.<br />
Narkidae (Sleeper Rays)<br />
8<br />
8<br />
Ventral
170 S h a r k s a n d R a y s o f B o r n e o<br />
Kwangtung Skate<br />
Dipturus kwangtungensis (Chu 1960)<br />
3<br />
2<br />
5<br />
1<br />
6<br />
7<br />
4<br />
Other names: None (English), none (Indonesian), Pari Belanda (Malaysian)<br />
Identifying features:<br />
1 pelvic fin divided into two distinct lobes<br />
2 snout supported by a firm cartilage<br />
3 snout narrowly triangular, long (preorbital length 4–5 times orbit diameter)<br />
4 dorsal surface dark brown with cloudy pattern of pale blotches surrounded by spots<br />
5 axil of pectoral fin with similar pattern to rest of disc<br />
6 thorns on tail confined to midline<br />
7 dorsal fins not widely separated<br />
8 most of ventral disc dark brown<br />
Size: To at least 50 cm; size of maturity unknown.<br />
Distribution: Found in the western North Pacific, from Japan, the Korean Peninsula,<br />
Taiwan to Borneo.<br />
Habitat and biology: Demersal on the continental shelf, probably on silty or muddy
R a j o i d e i 171<br />
bottoms. Oviparous, females likely to produce small egg cases with horny extensions at<br />
each corner. Diet probably consists of small crustaceans.<br />
Utilisation: Caught rarely as a bycatch of trawl fisheries.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: Raja (Okamejei) hollandi Jordan & Richardson: Yano et al. (2005).<br />
References: Ishihara (1987).<br />
8<br />
1<br />
In Borneo: Off Sarawak.<br />
Rajidae (Skates)<br />
Ventral disc (female)<br />
7<br />
Lateral posterior tail
172 S h a r k s a n d R a y s o f B o r n e o<br />
Borneo Sand Skate<br />
Okamejei cairae Last, Fahmi & Ishihara, 2010<br />
4<br />
3<br />
2<br />
1<br />
6<br />
7<br />
5<br />
Other names: None (English), Pari, Pari Luncur (Indonesian), Pari-raja Tompok<br />
(Malaysian)<br />
Identifying features:<br />
1 pelvic fin divided into two distinct lobes<br />
2 snout supported by a firm cartilage<br />
3 snout broadly triangular, quite long (preorbital length ~3 times orbit diameter)<br />
4 dorsal surface yellowish brown with clusters of minute black flecks<br />
5 dark ring-like marking near axil of pectoral fin<br />
6 thorns on tail minute<br />
7 dorsal fins widely separated<br />
8 ventral disc margin distinctly paler than central part<br />
Size: To at least 39 cm; males maturing at about 34 cm.<br />
Distribution: Possibly endemic to the South China Sea.<br />
Habitat and biology: Demersal over sandy and muddy bottoms on the continental<br />
shelf. Oviparous, producing small, rectangular egg cases with horny extensions at each<br />
corner. Diet unknown, but probably consists of small crustaceans, worms and molluscs.
R a j o i d e i 173<br />
Similar forms occur in the Western Central Pacific, from the East China Sea to Java<br />
(eastern Indonesia). Depth range not well defined, but probably mainly on the mid<br />
continental shelf (~70-150 m).<br />
Utilisation: Caught as occasional bycatch of trawl fisheries and utilised solely for its<br />
meat.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: ?Okamejei boesemani (Ishihara): Compagno et al. (2005b); Raja<br />
(Okamejei) boesemani Ishihara: Yano et al. (2005).<br />
References: Last et al. (2010a).<br />
8<br />
1<br />
Rajidae (Skates)<br />
Ventral disc (female)<br />
In Borneo: Off western Borneo, including<br />
Sabah, Sarawak and northwestern Kalimantan.<br />
6<br />
7<br />
Lateral tail
174 S h a r k s a n d R a y s o f B o r n e o<br />
Yellowspotted Skate<br />
Okamejei hollandi (Jordan & Richardson, 1909)<br />
4<br />
3<br />
1<br />
2<br />
6 7<br />
5<br />
Other names: Holland Skate, Thornback Ray (English), Pari Luncur (Indonesian), Pari<br />
Belanda (Malaysian)<br />
Identifying features:<br />
1 pelvic fin divided into two distinct lobes<br />
2 snout supported by a firm cartilage<br />
3 snout broadly triangular, quite long (preorbital length ~3 times orbit diameter)<br />
4 dorsal surface brownish with pale blotches, black flecks (when present) not in welldefined<br />
clusters<br />
5 axil of pectoral fin with a pale-edged brown blotch<br />
6 thorns on tail not minute<br />
7 dorsal fins very widely separated<br />
8 most of ventral disc medium to dark brown<br />
Size: To at least 45 cm; males maturing at about 30 cm.<br />
Distribution: Western Pacific, from southern Japan, East China Sea, Taiwan, and the<br />
South China Sea.<br />
Habitat and biology: Demersal over sandy and muddy bottoms on the continental
R a j o i d e i 175<br />
shelf. Oviparous, females produce small, egg cases (up to 7 x 4 cm) with horny<br />
extensions at each corner. Diet consists of small crustaceans and bony fishes. Occurs with<br />
O. cairae but appears to be less common. Depth range not well defined, but probably<br />
mainly on the mid continental shelf (~70–150 m).<br />
Utilisation: Caught as an occasional bycatch of trawl fisheries and utilised solely for its<br />
meat.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: Figured (Plate 211) as Raja (Okamejei) boesemani Ishihara: Yano et al.<br />
(2005).<br />
References: None.<br />
8<br />
Rajidae (Skates)<br />
1<br />
Ventral disc (female)<br />
In Borneo: Off western Borneo, including<br />
Sarawak and Kalimantan.<br />
6 7<br />
Lateral tail
176 S h a r k s a n d R a y s o f B o r n e o<br />
Philippine Ocellate Skate<br />
Okamejei jensenae Last & Lim, 2010<br />
4<br />
3<br />
2<br />
1<br />
6<br />
7<br />
5<br />
Other names: Yellow-spotted Skate (English), none (Indonesian), Pari Belanda<br />
(Malaysian)<br />
Identifying features:<br />
1 pelvic fin divided into two distinct lobes<br />
2 snout supported by a firm cartilage<br />
3 snout broadly triangular, quite long (preorbital length ~4 times orbit diameter)<br />
4 dorsal surface brownish with scattered yellowish spots<br />
5 pair of large dark spots with white-spotted borders (removed with mucous when<br />
washed)<br />
6 thorns on tail small<br />
7 dorsal fins relatively close together<br />
8 outer half of ventral disc distinctly darker than central part<br />
Size: To at least 37 cm; male size unknown but immature at 24 cm.<br />
Distribution: Probably endemic to the Indo-Malay Archipelago, in the Sulu and<br />
Celebes seas.
R a j o i d e i 177<br />
Habitat and biology: Demersal over soft bottoms on the continental shelf. Like all<br />
skates, presumably oviparous, producing small, rectangular egg cases. Diet also unknown,<br />
but probably consists of small benthic invertebrates.<br />
Utilisation: Caught occasionally as bycatch by trawlers and sold opportunistically.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: Okamejei sp. 1: Compagno et al. (2005b).<br />
References: Compagno et al. (2005b); Last & Lim (2010).<br />
8<br />
1<br />
Ventral disc (female)<br />
In Borneo: Off Lahad Datu, eastern<br />
Sabah.<br />
Rajidae (Skates)<br />
7<br />
Lateral posterior tail
178 S h a r k s a n d R a y s o f B o r n e o<br />
Borneo Leg Skate<br />
Sinobatis borneensis (Chan, 1965)<br />
3<br />
2<br />
4<br />
5<br />
Other names: None (English), none (Indonesian), none (Malaysian)<br />
Identifying features:<br />
1 pelvic fin divided into two leg-like lobes<br />
2 snout floppy, supported by a thin, flexible cartilage<br />
3 snout very long, pointed (preorbital length more than 5 times orbit diameter)<br />
4 tail very slender, lacking dorsal fins<br />
5 dorsal surface of disc distinctly paler than ventral surface<br />
Size: To at least 32 cm; males mature at about 26 cm.<br />
Distribution: Narrow-ranging in the tropical Indo-West Pacific, off Taiwan, the<br />
Philippines and in the South China Sea, off Malaysian Borneo.<br />
Habitat and biology: Occurs demersally on the continental slope in 475–835 m<br />
depth. Probably oviparous, biology poorly known.<br />
Utilisation: Caught rarely and not used for food.
R a j o i d e i 179<br />
Conservation status: IUCN Red List: Least Concern.<br />
Local synonyms: Previously as Anacanthobatis borneensis Chan.<br />
References: Last & Compagno (1999).<br />
Mouth and nostrils<br />
In Borneo: Known from the holotype<br />
collected in the South China Sea, off<br />
Sarawak.<br />
Anacanthobatidae (Leg Skates)<br />
1<br />
Ventral
180 S h a r k s a n d R a y s o f B o r n e o<br />
Giant Stingaree<br />
Plesiobatis daviesi (Wallace, 1967)<br />
1<br />
2<br />
3<br />
4<br />
5<br />
Other names: Deepwater Stingray (English), Pari (Indonesian), Pari Lembik Merah,<br />
Pari Merah (Malaysian)<br />
Identifying features:<br />
1 tail with a long, thin, lobe-like caudal fin<br />
2 disc upper surface with small granular denticles<br />
3 snout very long, >6 times orbit diameter<br />
4 no dorsal fin, or skin folds on side or undersurface of tail<br />
5 flesh flabby<br />
Size: To at least 270 cm; males and females mature at about 130–172 and 189–200 cm<br />
respectively; born at about 50 cm.<br />
Distribution: Tropical Indo–West Pacific, from southeastern Africa to New Caledonia,<br />
and from the Central Pacific (Hawaii).<br />
Habitat and biology: Mainly soft silty and muddy bottoms on continental slopes at<br />
depths of 275–680 m. Presumably viviparous, with histotrophy; very little known of its
M y l i o b a t o i d e i 181<br />
biology. Diet consists primarily of small fishes, cephalopods and crustaceans. Its long,<br />
flexible snout enables it to feed in soft sediments; occasionally feeds on mesopelagic<br />
species suggesting that it might also catch prey well off the bottom. Should be handled<br />
carefully because of its long, sharp sting.<br />
Utilisation: Caught infrequently by demersal longline fisheries in deepwater. Used for<br />
its meat, but not highly regarded.<br />
Conservation status: IUCN Red List: Least Concern.<br />
Local synonyms: None.<br />
References: None.<br />
Mouth and nostrils<br />
In Borneo: Known only from off Sarawak.<br />
Plesiobatidae (Giant Stingarees)<br />
1<br />
Lateral posterior tail with caudal fin
182 S h a r k s a n d R a y s o f B o r n e o<br />
Smalleye Stingray<br />
Dasyatis microps (Annandale, 1908)<br />
2<br />
6<br />
1<br />
5<br />
4<br />
3<br />
Other names: Thickspine Giant Stingray (English), Pari Sapi, Pari Babi (Indonesian),<br />
Pari Gergasi (Malaysian)<br />
Identifying features:<br />
1 no enlarged thorns along central disc or tail (covered instead with minute spiny<br />
denticles)<br />
2 disc very broad and strongly rhomboidal with very angular apices<br />
3 pinkish brown above with rows of white spots on each side of pectoral fins<br />
4 skin folds on tail reduced to low ridges (occasionally indistinct)<br />
5 tail very broad based, tapering markedly near sting<br />
6 very small eyes and large spiracles<br />
Size: Attains at least 220 cm DW (>300 cm TL).<br />
Distribution: Patchy in the Indo–West Pacific, mainly from India to northern
M y l i o b a t o i d e i 183<br />
Australia, but also from southeastern Africa.<br />
Habitat and biology: Mainly benthopelagic on the inner continental shelf to at least<br />
50 m depth; sometimes entering estuaries and river mouths. Biology unknown;<br />
presumably viviparous, with histotrophy, and diet probably consists of large crustaceans<br />
and small fishes.<br />
Utilisation: Caught very rarely in tangle nets. Used mainly for its meat, but uncommon<br />
in markets.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: None.<br />
References: Pierce et al. (2008).<br />
Dasyatidae (Stingrays)<br />
In Borneo: Northeastern Sabah.
184 S h a r k s a n d R a y s o f B o r n e o<br />
Dwarf Black Stingray<br />
Dasyatis parvonigra Last & White, 2008<br />
2<br />
5<br />
1<br />
6<br />
Other names: None (English), Ikan Pari (Indonesian), Pari (Malaysian)<br />
Identifying features:<br />
1 thorns confined to central disc (single row on midline with shorter row either side)<br />
2 disc rhomboidal with somewhat angular apices<br />
3 short, low dorsal skin fold on tail beyond sting<br />
4 long, low ventral skin fold on tail<br />
5 tail moderately long, becoming much more slender beyond sting, but without banding<br />
6 no thorns on tail before sting<br />
7 ventral disc dark edged (not yellowish)<br />
Size: To at least 51 cm DW (~110 cm TL); males mature at about 35 cm DW.<br />
Distribution: Known only from northwestern Australia, Indonesia and Malaysia;
M y l i o b a t o i d e i 185<br />
possibly also West Papua and the Philippines.<br />
Habitat and biology: Demersal on insular and continental shelves in 60–125 m. Diet<br />
and reproductive biology unknown; presumably viviparous, with histotrophy.<br />
Utilisation: Caught incidentally by the demersal trawl and trammel-net fisheries<br />
operating in shelf waters. Used for its meat.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: Dasyatis cf. longa (Garman): White et al. (2006b); Dasyatis cf. longus<br />
(Garman): White & Dharmadi (2007).<br />
References: Last & White (2008).<br />
7<br />
Dasyatidae (Stingrays)<br />
Ventral disc<br />
In Borneo: Known from Sabah, including<br />
the eastern border with Kalimantan.<br />
1<br />
Nuchal area<br />
3<br />
4<br />
Lateral tail
186 S h a r k s a n d R a y s o f B o r n e o<br />
Cow Stingray<br />
Dasyatis ushiei (Jordan & Hubbs, 1925)<br />
2<br />
5<br />
1<br />
6<br />
Other names: None (English), Pari Boro, Pari Jantung (Indonesian), Pari Ekor Duri<br />
(Malaysian)<br />
Identifying features:<br />
1 thorns extending along midline of disc and onto tail<br />
2 disc rhomboidal with angular apices<br />
3 low ridge-like dorsal skin fold on tail beyond sting<br />
4 long, low ventral skin fold on tail<br />
5 tail long, tapering in thickness beyond sting, but without banding<br />
6 cluster of large thorns on tail before sting in adults<br />
7 ventral disc dark edged (sometimes faint)<br />
Size: To at least 202 cm DW (~400 cm TL); males mature at about 117 cm DW; probably<br />
born at about 30–35 cm DW.<br />
Distribution: Not well defined, possibly western North Pacific to eastern Indonesia<br />
on insular and continental shelves.
M y l i o b a t o i d e i 187<br />
Habitat and biology: Demersal on insular and continental shelves to at least 190 m<br />
(possibly to 360 m). Biology largely unknown; presumably viviparous, with histotrophy.<br />
Diet probably consists of small benthic fishes and invertebrates.<br />
Utilisation: Caught occasionally by demersal tangle net and longline fisheries<br />
operating in shelf waters. Used for its meat, cartilage and thorny tail.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: Dasyatis cf. ushiei (Jordan & Hubbs): White et al. (2006b), White &<br />
Dharmadi (2007); Dasyatis cf thetidis Ogilby: Yano et al. (2005).<br />
References: None.<br />
Ventral disc<br />
7<br />
In Borneo: Known from off Sarawak<br />
and Sabah.<br />
Dasyatidae (Stingrays)<br />
1<br />
Nuchal area<br />
6<br />
3<br />
Lateral tail<br />
4
188 S h a r k s a n d R a y s o f B o r n e o<br />
Sharpnose Stingray<br />
Dasyatis zugei (Müller & Henle, 1841)<br />
2<br />
7<br />
3<br />
1<br />
8<br />
Other names: Pale-edged Stingray (English), Pari Biasa, Toka-toka, Tuka-tuka<br />
(Indonesian), Pari Ketuka, Pari Nyiru, Pari Tanjung (Malaysian)<br />
Identifying features:<br />
1 a few small thorns along midline of disc<br />
2 disc with broadly rounded apices<br />
3 snout very elongate, pointed<br />
4 no oral papillae in mouth<br />
5 weak dorsal skin fold on tail beyond sting<br />
6 long, low ventral skin fold<br />
7 tail relatively short, tapering in thickness beyond sting and without banding<br />
8 row of small thorns on tail before sting in adults<br />
9 ventral disc pale or dark edged<br />
Size: To at least 29 cm DW (75 cm TL); males and females mature at about 16 and<br />
19 cm DW respectively; born at 7–10 cm DW.
M y l i o b a t o i d e i 189<br />
Distribution: Indo–West Pacific, from India to eastern Indonesia (Bali) and northwards<br />
to southern Japan.<br />
Habitat and biology: Demersal on insular and continental shelves, to a depth of<br />
at least 40 m. Viviparous, with histotrophy; gives birth to litters of 1–4 pups after an<br />
unknown gestation period; no reproductive synchronicity. Diet consists primarily of<br />
shrimps, but includes other crustaceans and small fishes.<br />
Utilisation: Locally, landed in large quantities as bycatch of bottom trawling. One of<br />
the most commercially important rays in Borneo; used for fresh and dried meat.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: None.<br />
References: None.<br />
Dasyatidae (Stingrays)<br />
9<br />
Ventral disc<br />
In Borneo: Probably widespread, although<br />
currently few records from eastern<br />
Kalimantan.<br />
1<br />
Nuchal area<br />
5<br />
Lateral tail<br />
6
190 S h a r k s a n d R a y s o f B o r n e o<br />
Pink Whipray<br />
Himantura fai Jordan & Seale, 1906<br />
5<br />
4<br />
3<br />
2<br />
6<br />
1<br />
7<br />
Other names: None (English), Pari Minyak, Pari Tembaga (Indonesian), Pari Pucat<br />
(Malaysian)<br />
Identifying features:<br />
1 no obvious band of denticles on central disc<br />
2 disc profile quadrangular with a short, broad snout<br />
3 upper surface uniformly yellowish or greyish pink (lacking an obvious pattern)<br />
4 no skin folds on tail<br />
5 tail long, whip-like and uniformly dark beyond sting (not banded)<br />
6 sting situated anteriorly on tail<br />
7 midline of tail before sting without enlarged thorny denticles<br />
Size: To at least 184 cm DW (500 cm TL); males mature at 108–115 cm DW; embryos<br />
of 68 cm DW have been recorded.<br />
Distribution: Poorly known, but probably widespread in the Indian Ocean and<br />
Western Pacific from southern Africa to Micronesia, including Australia.
M y l i o b a t o i d e i 191<br />
Habitat and biology: Lives over soft substrates near the coast and on the inner<br />
continental shelf, from the intertidal zone to about 70 m depth, occasionally deeper<br />
to 200 m; schools near coral reefs and sand cays in some areas. Biology poorly known;<br />
viviparous, with histotrophy, and diet probably consists of small fishes and bottomdwelling<br />
invertebrates.<br />
Utilisation: Occasional catch of the demersal tangle net and bottom trawl fisheries.<br />
Used mainly for its meat.<br />
Conservation status: IUCN Red List: Least Concern.<br />
Local synonyms: Image of MSR659 in Yano et al. (2005) is of H. pastinacoides.<br />
References: None.<br />
Dasyatidae (Stingrays)<br />
Ventral disc<br />
In Borneo: Widespread.<br />
Nuchal area
192 S h a r k s a n d R a y s o f B o r n e o<br />
Whitespotted Whipray<br />
Himantura gerrardi (Gray, 1851)<br />
5<br />
4<br />
2<br />
3<br />
7<br />
1<br />
6<br />
8<br />
Other names: Sharpnose Stingray, Bluntnose Whiptail Ray, Banded Whiptail Ray<br />
(English), Pari Bintang, Pari Super, Pari Batu (Indonesian), Pari Bintik Putih, Pari Batik<br />
(Malaysian)<br />
Identifying features:<br />
1 widely spaced, granular denticles on central disc (absent in small juveniles)<br />
2 disc profile quadrangular<br />
3 upper surface of disc usually with numerous white spots (rarely plain greyish brown)<br />
4 no skin folds on tail<br />
5 tail long, whip-like, with alternating light and dark bands (rarely faint)<br />
6 sting situated anteriorly on tail<br />
7 central disc usually with 1–5 small thorns<br />
8 tail lacking thorns<br />
Size: Possibly to about 100 cm DW, rarely exceeding 85 cm DW (~ 220 cm TL); males
M y l i o b a t o i d e i 193<br />
and females mature at 46–48 cm DW and about 64 cm DW respectively; born at 18–<br />
21 cm DW.<br />
Distribution: Widespread in the Indo–West Pacific from India to eastern Indonesia,<br />
north to Taiwan; possibly New Guinea but not Australia.<br />
Habitat and biology: Demersal on soft bottoms, from inshore to a depth of at least<br />
60 m. Viviparous, with histotrophy; gives birth to litters of 1–4 pups after an unknown<br />
gestation period; small individuals present in trawl catches in all months indicating no<br />
reproductive seasonality. Diet unknown, but presumably consists of bivalves, crustaceans<br />
and small fishes. Two distinct forms, detected by genetic methods, occur in Borneo but<br />
these need further resolution.<br />
Utilisation: Very important commercial species, caught in large quantities in the<br />
demersal tangle net, bottom trawl and trammel net fisheries. Used mainly for its highly<br />
regarded fresh meat and skin (valuable as leather).<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Trygon macrurus Bleeker, 1852.<br />
References: None.<br />
Dasyatidae (Stingrays)<br />
Ventral disc<br />
In Borneo: Widespread.<br />
1<br />
7<br />
Nuchal area
194 S h a r k s a n d R a y s o f B o r n e o<br />
Mangrove Whipray<br />
Himantura granulata (Macleay, 1883)<br />
2<br />
6<br />
5<br />
7<br />
4<br />
9<br />
3<br />
1<br />
8<br />
Other names: Coachwhip Ray, Macleay’s Coachwhip Ray, Mangrove Ray,<br />
Mangrove Stingray, Whitetail Stingray, Whitetail Whipray (English), Pari Sapi<br />
(Indonesian), Pari Bakau (Malaysian)<br />
Identifying features:<br />
1 band of flat denticles on central disc in adults<br />
2 disc almost circular in profile<br />
3 snout broadly triangular, short<br />
4 upper surface greyish with small white flecks (often also with dark mucous)<br />
5 no skin folds on tail<br />
6 tail moderately long, whip-like, whitish posterior to sting<br />
7 sting situated anteriorly on tail<br />
8 central disc usually without enlarged thorns<br />
9 tail lacking thorns<br />
Size: To at least 141 cm DW (>350 cm TL); males mature at about 55–65 cm DW;<br />
born at about 14 cm DW.
M y l i o b a t o i d e i 195<br />
Distribution: Possibly widespread in the Indo–West Pacific, from the Red Sea and<br />
Maldives to Micronesia and northern Australia.<br />
Habitat and biology: Demersal, in coastal waters but also inshore on the continental<br />
shelf to a depth of at least 85 m; juveniles occur mainly in mangroves and estuaries,<br />
adults on coral reefs. Viviparous, with histotrophy; biology little known. Diet consists<br />
primarily of crabs and prawns.<br />
Utilisation: Caught occasionally in the dryer northeastern part of Borneo by demersal<br />
tangle net and hook-and-line fisheries. Used fresh for its meat.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: None.<br />
References: None.<br />
Dasyatidae (Stingrays)<br />
In Borneo: Known from off Sabah and<br />
northeastern Kalimantan.<br />
Ventral disc<br />
1<br />
8<br />
Nuchal area
196 S h a r k s a n d R a y s o f B o r n e o<br />
Jenkins’ Whipray<br />
Himantura jenkinsii (Annandale, 1909)<br />
5<br />
2<br />
4<br />
3<br />
6<br />
1<br />
7<br />
Other names: Rough-back Stingray (English), Pari Aer, Pari Duri, Pari Kikir<br />
(Indonesian), Pari Pasir, Pari Naga (Malaysian)<br />
Identifying features:<br />
1 band of flat denticles on central disc (poorly developed in young)<br />
2 disc profile quadrangular with a short, broad snout<br />
3 upper surface uniformly yellowish brown (rarely with small dark spots on disc near<br />
tail base)<br />
4 no skin folds on tail<br />
5 tail moderately long, whip-like, uniformly dark (not banded)<br />
6 sting situated anteriorly on tail<br />
7 central disc and tail with row of upright thorns<br />
Size: To at least 150 cm DW (about 300 cm TL); males mature at 70–85 cm DW; born<br />
at about 23 cm DW.<br />
Distribution: Widespread in the Indo–West Pacific, from southern Africa, Madagascar and<br />
the Red Sea through Pakistan to eastern Indonesia, the Philippines and northern Australia.
M y l i o b a t o i d e i 197<br />
Habitat and biology: Demersal on sandy substrates, often in caves and under ledges,<br />
inshore to depths of at least 90 m. Viviparous, with histotrophy; biology little known.<br />
Diet presumably consists of crustaceans and small fishes.<br />
Utilisation: Occasional catch of the tangle net, bottom trawl and line fisheries. Used<br />
for fresh meat.<br />
Conservation status: IUCN Red List: Least Concern.<br />
Local synonyms: Himantura draco Compagno & Heemstra, 1984.<br />
References: None.<br />
Ventral disc<br />
In Borneo: Mainly known from Sabah<br />
and Sarawak; rarely caught off eastern,<br />
northwestern and southern Kalimantan.<br />
Dasyatidae (Stingrays)<br />
7<br />
Dorsal tail thorns<br />
1<br />
7<br />
Nuchal area
198 S h a r k s a n d R a y s o f B o r n e o<br />
Roughback Whipray<br />
Himantura kittipongi Vidthayanon & Roberts, 2005<br />
6<br />
5<br />
3<br />
9<br />
1<br />
7<br />
8<br />
2<br />
Other names: None (English), Pari Sungai (Indonesian), Pari Sungai (Malaysian)<br />
Identifying features:<br />
1 broad denticle band on disc of adults (rough, often with scattered thorns)<br />
2 disc profile subcircular to oval with short, sharply pointed tip<br />
3 uniformly brownish above (without pattern but often spotted or blotched)<br />
4 whitish below with a broad dark outer margin<br />
5 no skin folds on tail<br />
6 tail long, narrow-based, whip-like, not banded<br />
7 single pearl thorn on central disc<br />
8 a row of slightly enlarged thorns on midline of tail<br />
9 eyes small<br />
Size: To at least 37 cm DW; males mature at about 25 cm DW.<br />
Distribution: Endemic to the Indo–Malay Archipelago; off Thailand, peninsula<br />
Malaysia and Borneo.
M y l i o b a t o i d e i 199<br />
Habitat and biology: Demersal in fresh and brackish water, mainly on silty bottoms.<br />
Biology poorly known; viviparous, with histotrophy. Diet unknown; given its unusually<br />
small mouth, probably consists of small bottom-dwelling invertebrates, particularly small<br />
crustaceans.<br />
Utilisation: Caught incidentally by demersal tangle nets, traps, and hook and line.<br />
Possibly used for its meat when fresh; may be collected for the aquarium trade.<br />
Conservation status: IUCN Red List: Endangered.<br />
Local synonyms: None.<br />
References: None.<br />
4<br />
Dasyatidae (Stingrays)<br />
In Borneo: Known locally from the<br />
Pawan and Kapuas rivers, western<br />
Kalimantan.<br />
Ventral disc<br />
7<br />
Nuchal area
200 S h a r k s a n d R a y s o f B o r n e o<br />
Leopard Whipray<br />
Himantura leoparda Manjaji-Matsumoto & Last, 2008<br />
5<br />
4<br />
3<br />
1<br />
8<br />
6<br />
2<br />
Other names: Undulate Whipray (English), Pari Macan (Indonesian), Pari Rimau<br />
(Malaysian)<br />
Identifying features:<br />
1 broad band of flat denticles on central disc (sparse or absent in small juveniles)<br />
2 disc profile somewhat quadrangular<br />
3 in adults, upper surface of disc with leopard-like markings (juveniles with large dark<br />
spots)<br />
4 no skin folds on tail<br />
5 tail long, whip-like, variably banded (rarely faint)<br />
6 sting situated anteriorly on tail<br />
7 central disc with row of up to 15 heart-shaped thorns<br />
8 midline of tail before sting without thorns<br />
Size: To at least 140 cm DW (about 410 cm TL); males mature at 70–80 cm DW; born<br />
at about 20 cm DW.
M y l i o b a t o i d e i 201<br />
Distribution: Eastern Indian and western Pacific Oceans, from Myanmar to Papua<br />
New Guinea, including islands of the Japanese Archipelago and northern Australia.<br />
Habitat and biology: Demersal on soft substrates inshore to at least 70 m depth.<br />
Viviparous, with histotrophy; biology little known due to confusion with other strongly<br />
patterned whiprays. Diet presumably consists of crustaceans and small fishes.<br />
Utilisation: Caught occasionally in the demersal tangle net, trawl and line fisheries.<br />
Commercially important and used mainly for fresh meat.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: Himantura undulata (Bleeker, 1852): Yano et al. (2005), White et al.<br />
(2006b).<br />
References: Manjaji-Matsumoto & Last (2008).<br />
Dasyatidae (Stingrays)<br />
Ventral disc<br />
In Borneo: Off Sabah, and northwestern<br />
and northeastern Kalimantan.<br />
1<br />
7<br />
Nuchal area<br />
Tail section - dorsal<br />
5<br />
3<br />
Tail section - ventral<br />
Juvenile (200 mm DW)
202 S h a r k s a n d R a y s o f B o r n e o<br />
Tubemouth Whipray<br />
Himantura lobistoma Manjaji-Matsumoto & Last, 2006<br />
6<br />
2<br />
3<br />
5<br />
1<br />
9<br />
8<br />
Other names: None (English), Pari Lumpur, Pari Tanjung (Indonesian), Pari Mulut<br />
Tajam (Malaysian)<br />
Identifying features:<br />
1 denticle band very broad, margin pointed on snout<br />
2 disc oval, snout extremely elongate and broadly triangular<br />
3 brownish to greyish above (without a pattern)<br />
4 mouth strongly protrusible<br />
5 no skin folds on tail<br />
6 tail long, whip-like and plain (not banded)<br />
7 central disc usually 2–4 small pearl thorns<br />
8 no other enlarged thorns on disc or tail<br />
9 eyes small<br />
Size: To about 100 cm DW; males and females mature by 49 and 70 cm DW respectively;<br />
born at >18 cm DW.
M y l i o b a t o i d e i 203<br />
Distribution: Endemic to Borneo and eastern Sumatra.<br />
Habitat and biology: Demersal on soft substrates inshore; biology little known.<br />
Viviparous, with histotrophy. Diet unknown, probably consists of crustaceans and<br />
small fishes.<br />
Utilisation: Caught commonly inshore off western Borneo, mainly by bottom trawl<br />
and line fisheries. Used mainly for fresh meat.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: None.<br />
References: Manjaji-Matsumoto & Last (2006).<br />
Dasyatidae (Stingrays)<br />
Ventral disc<br />
In Borneo: Known mainly from western<br />
Borneo; occasionally off southern and<br />
eastern Kalimantan.<br />
7<br />
Nuchal area<br />
4<br />
Protrusible mouth<br />
Late-term embryo (18 cm DW)
204 S h a r k s a n d R a y s o f B o r n e o<br />
Longnose Marbled Whipray<br />
Himantura oxyrhyncha (Sauvage, 1878)<br />
6<br />
5<br />
2<br />
3<br />
9<br />
1<br />
8<br />
Other names: Marbled Freshwater Stingray, Marbled Whipray (English), Pari<br />
(Indonesian), none (Malaysian)<br />
Identifying features:<br />
1 band of denticles on central disc narrow in adults<br />
2 disc profile oval with long, sharply pointed tip<br />
3 brownish with an ornate reticulate pattern<br />
4 uniformly whitish below, occasionally greyish or blackish marginally<br />
5 no skin folds on tail<br />
6 tail long, broad-based, whip-like and spotted<br />
7 central disc with large pearl thorn<br />
8 row of small heart-shaped thorns on mid-anterior tail of adults<br />
9 eyes very small<br />
Size: To about 37 cm DW (126 cm TL); free-swimming by 9 cm DW.<br />
Distribution: Borneo, Cambodia and Thailand.
M y l i o b a t o i d e i 205<br />
Habitat and biology: Demersal in freshwater and estuaries; localised and common in<br />
lowland rivers and streams on soft substrates. Viviparous, with histotrophy; biology little<br />
known. Diet probably consists of small crustaceans and molluscs.<br />
Utilisation: Caught in demersal tangle nets, bottom trap and by line. Used mainly in<br />
the aquarium trade.<br />
Conservation status: IUCN Red List: Endangered.<br />
Local synonyms: Dasybatus krempfi Chabanaud, 1923.<br />
References: None.<br />
Ventral disc<br />
4<br />
In Borneo: Known from north-west<br />
Kalimantan in the environs of the<br />
Kapuas River.<br />
Dasyatidae (Stingrays)<br />
7<br />
Nuchal area
206 S h a r k s a n d R a y s o f B o r n e o<br />
Round Whipray<br />
Himantura pastinacoides (Bleeker, 1852)<br />
5<br />
6<br />
2<br />
3<br />
7<br />
1<br />
9<br />
Other names: None (English), Pari Aer, Pari Pasir (Indonesian), Pari Bulat (Malaysian)<br />
Identifying features:<br />
1 denticle band very broad, margin rounded on snout<br />
2 profile of disc almost oval; snout short, broadly triangular<br />
3 brownish or greyish above (without a pattern)<br />
4 whitish below, sometimes with a broad greyish posterior margin<br />
5 no skin folds on tail<br />
6 tail long, whip-like and dark posteriorly (not banded)<br />
7 sting situated anteriorly on tail<br />
8 usually one large, greenish pearl thorn on central disc<br />
9 no other enlarged thorns on disc or tail<br />
Size: To at least 86 cm DW (186 cm TL), possibly to about 100 cm DW; males mature<br />
about 43–46 cm DW and females mature by 58 cm DW; birth size about 15–16 cm<br />
DW.
M y l i o b a t o i d e i 207<br />
Distribution: Indo–Malay Archipelago, including Borneo and Sumatra; records from<br />
Javanese fish markets were probably caught elsewhere.<br />
Habitat and biology: Demersal, inshore, mostly in coastal embayments, estuaries and<br />
near large river mouths. Presumably viviparous, with histotrophy; biology not known.<br />
Diet probably consists of crustaceans and small fishes.<br />
Utilisation: Common bycatch of bottom trawl, line and beach seine fisheries off<br />
southern Borneo. Used for its meat (fresh), skin and cartilage.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Trygon pareh Bleeker, 1852.<br />
References: None.<br />
4<br />
Dasyatidae (Stingrays)<br />
Ventral disc<br />
In Borneo: Widespread, concentrated<br />
near large river estuaries.<br />
8<br />
Nuchal area
208 S h a r k s a n d R a y s o f B o r n e o<br />
Giant Freshwater Whipray<br />
Himantura polylepis (Bleeker, 1852)<br />
6<br />
2<br />
5<br />
3<br />
1<br />
9<br />
7<br />
Other names: Freshwater Whipray, Giant Freshwater Stingray (English), Pari<br />
(Indonesian), Pari Air Tawar, Pari Sungai (Malaysian)<br />
Identifying features:<br />
1 no obvious band of flat denticles on central disc<br />
2 disc profile almost circular with long, sharp pointed tip<br />
3 greyish or brownish above (without a pattern)<br />
4 white below with very broad dark margin<br />
5 no skin folds on tail<br />
6 tail long, thin-based, whip-like and blackish (not banded)<br />
7 sting situated anteriorly on tail<br />
8 central disc usually with 2 heart-shaped thorns (no preceding row of slightly smaller<br />
thorns)<br />
9 midline of tail before sting lacking enlarged thorns<br />
Size: To at least 192 cm DW (~500 cm TL), probably larger; males mature at about 110<br />
cm DW.
M y l i o b a t o i d e i 209<br />
Distribution: Widespread but patchy in the Indo–West Pacific, from India to eastern<br />
Indonesia; a similar form off Australia, and possibly New Guinea, is a separate species<br />
(H. dalyensis Last & Manjaji-Matsumoto, 2008).<br />
Habitat and biology: A very large coastal ray living primarily in rivers and estuaries,<br />
often well upstream. Probably common in the Kinabatangan River but rarely caught;<br />
sometimes in coastal marine and brackish habitats in other parts of Indonesia. Viviparous,<br />
with histotrophy; biology not well known. Feeds mainly on small fishes and crustaceans.<br />
Utilisation: Caught accidentally by local fishers, mainly by line and occasionally in<br />
gillnets and traps. Used for food and possibly its cartilage.<br />
Conservation status: IUCN Red List: Vulnerable; Critically Endangered in Thailand<br />
(as Himantura chaophraya Monkolprasit & Roberts, 1990).<br />
Local synonyms: Himantura chaophraya Monkolprasit & Roberts, 1990.<br />
References: Last & Manjaji-Matsumoto (2008).<br />
Dasyatidae (Stingrays)<br />
4<br />
In Borneo: Known from Sabah and<br />
eastern Kalimantan.<br />
Ventral disc<br />
8<br />
Nuchal area
210 S h a r k s a n d R a y s o f B o r n e o<br />
White-edge Freshwater Whipray<br />
Himantura signifer Compagno & Roberts, 1982<br />
6<br />
2<br />
3<br />
5<br />
9<br />
1<br />
8<br />
7<br />
Other names: Freshwater Stingray, Pale Whipray, White-rim Stingray (English), Pari<br />
Sungai (Indonesian), Pari Air Tawar, Pari Sungai (Malaysian)<br />
Identifying features:<br />
1 band of denticles on central disc absent or narrow in adults<br />
2 disc profile almost circular with short, sharply pointed tip<br />
3 yellowish or greyish brown above (often with a faint reticulate pattern) with an<br />
obvious white edge<br />
4 uniformly whitish below<br />
5 no skin folds on tail<br />
6 tail long, broad-based, whip-like and whitish (not banded)<br />
7 sting situated anteriorly on tail<br />
8 central disc and tail lacking thorns<br />
9 eyes very small<br />
Size: To at least 37 cm DW (~134 cm TL); males maturing at 21–23 cm DW, females at
M y l i o b a t o i d e i 211<br />
25–26 cm DW; born at about 11–12 cm DW.<br />
Distribution: Thailand, Indonesia and Malaysia, including central Sumatra, mainly in<br />
freshwater.<br />
Habitat and biology: Demersal on soft substrates in rivers, streams, and occasionally<br />
estuaries; ventures several hundred kilometres upstream. Viviparous, with histotrophy;<br />
biology little known. Diet consists of small, benthic invertebrates, such as crustaceans,<br />
shellfish and insect larvae.<br />
Utilisation: Caught mainly by trap, spear and bottom-set lines. Used for fresh meat and<br />
in the aquarium trade.<br />
Conservation status: IUCN Red List: Endangered.<br />
Local synonyms: None.<br />
References: None.<br />
4<br />
Dasyatidae (Stingrays)<br />
In Borneo: Kapuas, Sampi and Rungan<br />
rivers, western and southern Kalimantan.<br />
Ventral disc<br />
1<br />
Nuchal area
212 S h a r k s a n d R a y s o f B o r n e o<br />
Bleeker’s Whipray<br />
Himantura uarnacoides (Bleeker, 1852)<br />
6<br />
5<br />
3<br />
1<br />
2<br />
9<br />
7<br />
Other names: Whitenose Whipray (English), Pari Tanjung, Pe Pasung, Pari Lumpur<br />
(Indonesian), Pari Pasir (Malaysian)<br />
Identifying features:<br />
1 denticle band very broad, margin rounded on snout<br />
2 profile of disc weakly rhomboidal, snout narrowly triangular<br />
3 greyish or brownish above (without a pattern)<br />
4 whitish below, sometimes with a narrow dark posterior margin<br />
5 no skin folds on tail<br />
6 tail long, whip-like and pale (not banded)<br />
7 sting situated anteriorly on tail<br />
8 usually 1–3 large pearl thorns on central disc<br />
9 no other enlarged thorns on disc or tail<br />
Size: Reported to reach 119 cm DW (300 cm TL), but rarely larger than 95 cm DW;<br />
males maturing at 50–60 cm DW; born about 18 cm DW.<br />
Distribution: Indo–West Pacific, from India to eastern Indonesia, including Malaysia.
M y l i o b a t o i d e i 213<br />
Habitat and biology: Demersal on soft substrates near the coast to a depth of at least<br />
30 m. Viviparous, with histotrophy; biology little known. Diet unknown, probably<br />
consists of crustaceans and small fishes.<br />
Utilisation: Common catch component of demersal trawl and line fisheries. Used<br />
mainly for its meat and skin (exported to Thailand).<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Trygon bleekeri Blyth, 1860.<br />
References: None.<br />
4<br />
In Borneo: Widespread, less common off<br />
western Sabah.<br />
Dasyatidae (Stingrays)<br />
Ventral disc<br />
8<br />
Nuchal area<br />
Juvenile (277 mm TL)
214 S h a r k s a n d R a y s o f B o r n e o<br />
Reticulate Whipray<br />
Himantura uarnak (Forsskål, 1775)<br />
5<br />
3<br />
7<br />
1<br />
9<br />
6<br />
2<br />
Other names: Reticulate Whipray, Coachwhip Ray, Longtail Ray, Leopard Stingray<br />
(English), Pari Macan, Pari Merica (Indonesian), Pari Rimau (Malaysian)<br />
Identifying features:<br />
1 broad band of flat denticles on central disc (sparse or absent in small juveniles)<br />
2 disc profile somewhat quadrangular<br />
3 in adults upper surface with fine dark spots and reticulations<br />
4 in juveniles upper surface with relatively small dark spots<br />
5 no skin folds on tail<br />
6 tail long, whip-like, variably banded (often faint in adults)<br />
7 sting situated anteriorly on tail<br />
8 central disc usually with 2 heart-shaped thorns (not preceded by row of slightly<br />
smaller thorns)<br />
9 midline of tail before sting without thorns<br />
Size: To at least 160 cm DW (450 cm TL); males mature at 82–84 cm DW; born at<br />
21–28 cm DW.
M y l i o b a t o i d e i 215<br />
Distribution: Widespread in the Indo–West Pacific, from southern Africa and the eastern<br />
Mediterranean, through to the Philippines, Caroline Islands and northern Australia.<br />
Habitat and biology: Demersal on soft substrates, commonly in intertidal regions, but<br />
also to depths of at least 50 m. Viviparous, with histotrophy; biology little known. Diet<br />
probably consists of crustaceans and small fishes. Two distinct genetic forms exist off<br />
Borneo that may represent more than a single species.<br />
Utilisation: Commonly caught in small quantities by bottom trawlers; also taken by gill<br />
net and longline. Used fresh for its meat; also harvested for its skin and cartilage.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Trygon punctata Günther, 1870; Himantura toshi Whitley: Yano et al.<br />
(2005).<br />
References: None.<br />
Dasyatidae (Stingrays)<br />
In Borneo: Widespread, but patchy.<br />
Ventral disc<br />
4<br />
8<br />
Nuchal area<br />
Juvenile (262 mm DW)
216 S h a r k s a n d R a y s o f B o r n e o<br />
Honeycomb Whipray<br />
Himantura undulata (Bleeker, 1852)<br />
6<br />
5<br />
3<br />
1<br />
9<br />
7<br />
2<br />
Other names: Bleeker’s Variegate Ray, Ocellate Whipray (English), Pari Macan<br />
(Indonesian), Pari Batik, Pari Rimau (Malaysian)<br />
Identifying features:<br />
1 broad band of flat denticles on central disc (sparse or absent in small juveniles)<br />
2 disc profile weakly quadrangular (pectoral-fin apex broadly rounded)<br />
3 in adults upper surface with pattern of large ocelli and honeycomb-like reticulations<br />
4 in juveniles upper surface with relatively large dark spots<br />
5 no skin folds on tail<br />
6 tail long, whip-like, with dark pattern or bands<br />
7 sting situated anteriorly on tail<br />
8 central disc usually with dominant pearl-shaped thorn followed by 2–3 slightly<br />
smaller thorns<br />
9 midline of tail before sting without thorns<br />
Size: To at least 130 cm DW; males maturing at 60–70 cm DW; born at about 26–<br />
27 cm DW.<br />
Distribution: Indo–West Pacific, poorly defined; from India to eastern Indonesia; no<br />
confirmed records from Australia.
M y l i o b a t o i d e i 217<br />
Habitat and biology: Demersal inshore on soft substrates, but little other information<br />
available as often confused with other similar species. Viviparous, with histotrophy; biology<br />
little known. Diet presumably consists of crustaceans and small fishes.<br />
Utilisation: Caught occasionally in demersal trawl, longline and tangle nets. Used<br />
mainly for its meat, possibly also skin and cartilage.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Trygon favus Annandale, 1909; Himantura fava Annandale: White et<br />
al. (2006b); Himantura sp. B: Yano et al. (2005).<br />
References: Manjaji-Matsumoto & Last (2008).<br />
Ventral disc<br />
In Borneo: Sarawak, northeastern<br />
Sabah, and northwestern and eastern<br />
Kalimantan; probably more widespread.<br />
Dasyatidae (Stingrays)<br />
8<br />
Nuchal area<br />
4<br />
Juvenile (350 mm DW)
218 S h a r k s a n d R a y s o f B o r n e o<br />
Dwarf Whipray<br />
Himantura walga (Müller & Henle, 1841)<br />
2<br />
3<br />
6<br />
1<br />
7<br />
5<br />
Other names: None (English), Pari Kikir, Toka Toka (Indonesian), Pari Ketuka, Tukatuka,<br />
Pari Tanjung (Malaysian)<br />
Identifying features:<br />
1 narrow band of flat denticles on central disc in adults<br />
2 profile of disc almost oval, snout broadly triangular<br />
3 greyish or brownish above (without a pattern)<br />
4 whitish below, sometimes with a yellowish grey posterior margin<br />
5 no skin folds on tail<br />
6 tail short, not whip-like (end bulbous in adult females)<br />
7 sting situated anteriorly on tail<br />
8 mid-disc thorns absent or rudimentary<br />
9 tail thorns very elongate, bases nearly half eye diameter in length<br />
Size: To at least 24 cm DW (~38 cm TL); males and females mature at 16–18 cm DW;<br />
born at 8–10 cm DW.<br />
Distribution: Off Thailand, Malaysia and Indonesia, but possibly also occurs further<br />
west to India.<br />
Habitat and biology: Demersal on insular and continental shelves, and occasionally in<br />
coastal embayments. Viviparous, with histotrophy; gives birth to litters of 1–2 pups after
M y l i o b a t o i d e i 219<br />
an unknown gestation period; no reproductive synchronicity. Diet consists primarily of<br />
small benthic crustaceans, but also small fishes.<br />
Utilisation: Landed in large quantities by bottom trawl fisheries. Used for its meat,<br />
fresh and dried, and is in demand locally.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: Trygon heterurus Bleeker, 1852; images of Himantura imbricata (Bloch<br />
& Schneider) in Yano et al. (2005) appear to be this species.<br />
References: None.<br />
4<br />
In Borneo: Widespread, but not recorded<br />
from eastern Kalimantan.<br />
Dasyatidae (Stingrays)<br />
Ventral disc<br />
8<br />
9<br />
Nuchal area<br />
Anterior tail - dorsal view<br />
6<br />
Dorsal post-sting tail - mature female
220 S h a r k s a n d R a y s o f B o r n e o<br />
Bluespotted Maskray<br />
Neotrygon kuhlii (Müller & Henle, 1841)<br />
4<br />
6<br />
5<br />
1<br />
7<br />
Other names: Bluespotted Stingaree, Bluespotted Stingray, Kuhl’s Stingray (English),<br />
Pari Blentik, Pari Kodok (Indonesian), Pari Lalat, Pari Macan, Pari Riman, Pari Rimau,<br />
Pari Tanjung, Kiampau (Malaysian)<br />
Identifying features:<br />
1 a few short thorns confined to midline of disc<br />
2 short, low skin fold on dorsal tail just posterior to sting tip<br />
3 long, low skin fold on ventral surface of tail<br />
4 tail not whip-like, its tip with broad black and white bands<br />
5 snout short with black bar through eyes<br />
6 large, bright, blue spots on upper disc<br />
7 usually no thorns on tail before sting<br />
Size: To at least 42 cm DW; males are mature by about 26 cm DW; born at about<br />
14 cm DW.<br />
Distribution: Indo–West Pacific, from southern Africa and India through southeast<br />
Asia and northern Australia, north to Japan and east to Micronesia and Melanesia;<br />
probably consists of a complex of species with narrow ranges.
M y l i o b a t o i d e i 221<br />
Habitat and biology: Demersal on insular and continental shelves to a depth of<br />
90 m. Viviparous, with histotrophy; gives birth to litters of 1–2 pups after an unknown<br />
gestation period; no reproductive synchronicity. Diet consists primarily of benthic<br />
crustaceans and small fishes.<br />
Utilisation: One of the most commercially important rays in the region; caught in<br />
large quantities by bottom trawl, trammel and fish trap fisheries. Used mainly for fresh<br />
meat.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: Dasyatis kuhlii (Müller & Henle): White et al. (2006b), White &<br />
Dharmadi (2007).<br />
References: None.<br />
Dasyatidae (Stingrays)<br />
Ventral disc<br />
In Borneo: Widespread.<br />
1<br />
Nuchal area<br />
2<br />
Lateral tail<br />
3
222 S h a r k s a n d R a y s o f B o r n e o<br />
Eastern Cowtail Stingray<br />
Pastinachus atrus (Macleay, 1883)<br />
4<br />
2<br />
5<br />
7<br />
3<br />
1<br />
6<br />
8<br />
Other names: Banana-tail Ray, Bull Ray, Fantail Ray, Feathertail Ray, Feathertail<br />
Stingray (English), Pari Bendera (Indonesian), Pari Bendera, Pari Daun, Pari Nyonya,<br />
Pari Tanjung (Malaysian)<br />
Identifying features:<br />
1 broad band of flat denticles on central disc<br />
2 disc profile quadrangular with a short, rounded snout<br />
3 snout apex mostly lacking denticles<br />
4 ventral skin fold terminating well before tail tip (when undamaged)<br />
5 fold blackish, very deep (maximum depth >3.5 times height of tail above, more than<br />
5 times in adults)<br />
6 tail relatively broad based<br />
7 sting situated posteriorly on tail (its distance from cloaca more than half disc width)<br />
8 no thorn row along middle of tail<br />
Size: To almost 200 cm DW (>300 cm TL); males mature at about 96–98 cm DW;<br />
born at about 18 cm DW.
M y l i o b a t o i d e i 223<br />
Distribution: Tropical Indo–West Pacific including Malaysia, Indonesia, Australia, New<br />
Guinea, and possibly Melanesia and Micronesia; also known from the Western Indian<br />
Ocean (Madagascar).<br />
Habitat and biology: Demersal, coastal to inner continental shelf to a depth of at least<br />
60 m; occurs in coral lagoons, intertidal mangrove estuaries and also known from rivers<br />
in freshwater. Viviparous, with histotrophy; biology little known. Diet of adults presumably<br />
consists of large crustaceans and small fishes.<br />
Utilisation: Caught frequently by bottom trawl, with smaller quantities by longline and<br />
beach seine. Good food fish, used locally mainly for fresh meat.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: Pastinachus sephen (Forsskål): Yano et al. (2005), White et al. (2006b).<br />
References: None.<br />
Dasyatidae (Stingrays)<br />
Ventral disc<br />
In Borneo: Widespread.<br />
5<br />
Nuchal area<br />
Lateral tail - at midlength of ventral fold
224 S h a r k s a n d R a y s o f B o r n e o<br />
Narrowtail Stingray<br />
Pastinachus gracilicaudus Last & Manjaji-Matsumoto, 2010<br />
4<br />
5<br />
7<br />
3<br />
1<br />
6<br />
8<br />
2<br />
Other names: None (English), Pari Bendera (Indonesian), none (Malaysian)<br />
Identifying features:<br />
1 broad band of flat denticles on central disc<br />
2 disc profile quadrangular with a short, rounded snout<br />
3 snout apex mostly lacking denticles<br />
4 ventral skin fold terminating well before tail tip (when undamaged)<br />
5 fold typically pale, relatively slender (maximum depth usually < 3 times height of tail<br />
above)<br />
6 tail relatively broad based<br />
7 sting situated posteriorly on tail (its distance from cloaca more than half disc width)<br />
8 no thorn row along middle of tail<br />
Size: To almost 83 cm DW (>200 cm TL); males mature by 67 cm DW; free-swimming<br />
by 30 cm DW.<br />
Distribution: Not well defined; known from the Indo–Malay Archipelago.
M y l i o b a t o i d e i 225<br />
Habitat and biology: Demersal on continental shelf, mainly inshore. Viviparous, with<br />
histotrophy; biology little known. Diet probably consists of crustaceans and small fishes.<br />
Utilisation: Caught occasionally by demersal tangle net, bottom trawl and longline<br />
fisheries. Used mainly for its meat, and probably for its skin.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: Confused with Pastinachus sephen (Forsskål).<br />
References: Last & Manjaji-Matsumoto (2010).<br />
Ventral disc<br />
In Borneo: Patchy, in western and<br />
northern Borneo; not observed from most<br />
of southern and eastern Kalimantan.<br />
Dasyatidae (Stingrays)<br />
5<br />
Nuchal area<br />
Lateral tail - at midlength of ventral fold
226 S h a r k s a n d R a y s o f B o r n e o<br />
Roughnose Stingray<br />
Pastinachus solocirostris Last, Manjaji & Yearsley, 2005<br />
2<br />
4<br />
5<br />
3<br />
1<br />
6<br />
8<br />
7<br />
Other names: None (English), Pari Gunung, Pari Bendera (Indonesian), Pari Mulut<br />
Kasar (Malaysian)<br />
Identifying features:<br />
1 broad band of flat denticles on central disc<br />
2 disc profile strongly quadrangular with an acute, triangular snout<br />
3 snout apex covered with enlarged, spear-shaped or fork-like denticles<br />
4 ventral skin fold terminating well before tail tip (when undamaged)<br />
5 fold relatively slender (maximum depth usually 150 cm TL); males mature at about 36–39 cm DW; born<br />
at about 20 cm DW.<br />
Distribution: Confined to Indonesia and Malaysia (Borneo and Sumatra).<br />
Habitat and biology: Habitat and biology largely unknown; demersal inshore on
M y l i o b a t o i d e i 227<br />
continental shelf, mostly near large estuaries. Presumably viviparous, with histotrophy.<br />
Diet probably consists of small crustaceans and fishes.<br />
Utilisation: Caught occasionally by bottom trawl, line and demersal gillnet fisheries<br />
operating off Sumatra, Sarawak and Kalimantan. Good food fish, used locally for its meat<br />
and probably its skin.<br />
Conservation status: IUCN Red List: Endangered.<br />
Local synonyms: Pastinachus cf. sephen (Forsskål): Yano et al. (2005).<br />
References: Last et al. (2005).<br />
Ventral disc<br />
In Borneo: Widespread off western<br />
Borneo; isolated records from southern<br />
and southeastern Kalimantan.<br />
Dasyatidae (Stingrays)<br />
Nuchal area<br />
3<br />
5<br />
Denticles at apex of snout<br />
Lateral tail - at midlength of ventral fold
228 S h a r k s a n d R a y s o f B o r n e o<br />
Starynose Stingray<br />
Pastinachus stellurostris Last, Fahmi & Naylor, 2010<br />
4 5<br />
7<br />
3<br />
1<br />
6<br />
8<br />
2<br />
Other names: None (English), Pari Bendera (Indonesian), none (Malaysian)<br />
Identifying features:<br />
1 broad band of flat denticles on central disc<br />
2 disc profile strongly quadrangular with an acute, triangular snout<br />
3 snout apex covered with enlarged, star-shaped denticles<br />
4 ventral skin fold terminating well before tail tip (when undamaged)<br />
5 fold relatively slender (maximum depth
M y l i o b a t o i d e i 229<br />
probably consists of invertebrates and small fishes.<br />
Utilisation: Caught rarely by line fisheries; rare in markets, probably used for its meat.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: Probably confused with Pastinachus solocirostris Last, Manjaji &<br />
Yearsley, 2005.<br />
References: None.<br />
Ventral disc<br />
In Borneo: Restricted, known only from<br />
northwestern Kalimantan.<br />
Dasyatidae (Stingrays)<br />
Nuchal area<br />
3<br />
5<br />
Denticles at apex of snout<br />
Lateral tail - at midlength of ventral fold
230 S h a r k s a n d R a y s o f B o r n e o<br />
Pelagic Stingray<br />
Pteroplatytrygon violacea (Bonaparte, 1832)<br />
2<br />
5<br />
4<br />
1<br />
3<br />
Other names: Blue Stingray, Violet Stingray (English), Pari Lampin, Pari Lemer,<br />
Payubek (Indonesian), Pari Hitam (Malaysian)<br />
Identifying features:<br />
1 row of small thorns along midline of disc<br />
2 anterior profile of disc strongly convex and obtuse<br />
3 outer edge of disc angular<br />
4 ventral skin fold on tail very low, terminating well before tail tip<br />
5 both dorsal and ventral surfaces dark brownish to black (often with a purplish<br />
tinge)<br />
Size: To at least 59 cm DW (at least 130 cm TL), elsewhere reported to 80 cm DW;<br />
males and females mature at 35–38 and 45–50 cm DW respectively; born at 16–20 cm<br />
DW.<br />
Distribution: Cosmopolitan in tropical and temperate waters.<br />
Habitat and biology: Fully pelagic stingray found in the open ocean, usually in upper
M y l i o b a t o i d e i 231<br />
100 m and rarely found inshore. Viviparous, with histotrophy; gives birth to litters of<br />
2–9 pups after a 4 month gestation period. Diet consists primarily of jellyfishes, squids,<br />
crustaceans and fishes.<br />
Utilisation: Occasional bycatch of tuna longline and gillnet fisheries operating<br />
throughout the region. Used for fresh meat when caught.<br />
Conservation status: IUCN Red List: Least Concern.<br />
Local synonyms: None.<br />
References: None.<br />
5<br />
Ventral disc<br />
In Borneo: Known from off Sarawak<br />
and Sabah, but likely to be more widely<br />
distributed.<br />
Dasyatidae (Stingrays)<br />
Lateral tail<br />
4
232 S h a r k s a n d R a y s o f B o r n e o<br />
Bluespotted Fantail Ray<br />
Taeniura lymma (Forsskål, 1775)<br />
3<br />
2<br />
4<br />
5<br />
1<br />
6<br />
Other names: Blue-spotted Lagoon Ray, Blue-spotted Ribbontail Ray, Lagoon Ray,<br />
Lesser Fantail Ray, Reef Ray, Ribbontail Stingray (English), Ikan Pari, Pari Kembang,<br />
Pari Totol (Indonesian), Pari Karang, Pari Reben, Kiampau (Malaysian)<br />
Identifying features:<br />
1 dorsal surface almost smooth to granular (denticles very small)<br />
2 profile of disc oval<br />
3 ventral skin fold on tail relatively deep, extending to tail tip<br />
4 upper surface with numerous bright blue spots<br />
5 stings present (usually 2), located near end of tail<br />
6 tail with blue stripe on each side before sting<br />
Size: To at least 35 cm DW (at least 75 cm TL); males and females mature at 20–22 and<br />
20–24 cm DW respectively; born at 13–14 cm DW.<br />
Distribution: Widespread in Indo–West Pacific, from southern Africa to the Solomon<br />
Islands, south to tropical Australia and north to the Philippines and Vietnam.
M y l i o b a t o i d e i 233<br />
Habitat and biology: Dominant ray in coral reef habitats; occurs inshore to depths of<br />
at least 20 m. Viviparous, with histotrophy; biology little known. Diet consists primarily<br />
of molluscs, worms and small crustaceans.<br />
Utilisation: Caught over shallow coral reefs; common in small quantities in markets.<br />
Used widely for its meat.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: Trygon ornatus Gray, 1830.<br />
References: None.<br />
In Borneo: Probably widespread,<br />
although less common in Sarawak and<br />
parts of Kalimantan.<br />
Dasyatidae (Stingrays)<br />
Ventral disc<br />
Lateral tail<br />
3
234 S h a r k s a n d R a y s o f B o r n e o<br />
Blotched Fantail Stingray<br />
Taeniurops meyeni (Müller & Henle, 1841)<br />
2<br />
4<br />
3<br />
6<br />
1<br />
5<br />
Other names: Blackblotched Stingray, Blackspotted Stingray, Bull Ray, Fantail Stingray,<br />
Giant Reef Ray, Marble Ribbontail Ray, Round Ribbontail Ray, Speckle Stingray<br />
(English), Pari Babi, Pari Merica (Indonesian), Pari Kelabu, Pari Reben (Malaysian)<br />
Identifying features:<br />
1 dorsal surface almost smooth (denticles very small)<br />
2 profile of disc circular<br />
3 ventral skin fold on tail deep, extending to tail tip<br />
4 upper surface dark with white blotches and mottling (often faint)<br />
5 large sting present (usually 1)<br />
6 tail uniformly black posterior to sting<br />
Size: To at least 180 cm DW (330 cm TL); males mature at 100–110 cm DW; born at<br />
30–35 cm DW.<br />
Distribution: Widespread in the Indo–West Pacific from South Africa to Japan, south<br />
to Micronesia, including northern Australia.
M y l i o b a t o i d e i 235<br />
Habitat and biology: Demersal on soft bottoms near coral reefs; also reported offshore<br />
to depths exceeding 400 m. Viviparous, with histotrophy; biology little known. Diet<br />
consists primarily of bivalves, crustaceans and small fishes.<br />
Utilisation: Caught occasionally by demersal tangle net and longline, rarely by bottom<br />
trawl fisheries. Used for its meat and cartilage in small quantities.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Taeniura melanospilus Bleeker, 1853; Taeniura meyeni Müller & Henle,<br />
1841: Yano et al. (2005), White et al. (2006b), White & Dharmadi (2007).<br />
References: None.<br />
Ventral disc<br />
In Borneo: Known only from Sabah and<br />
off Sarawak.<br />
Dasyatidae (Stingrays)<br />
Lateral tail<br />
3
236 S h a r k s a n d R a y s o f B o r n e o<br />
Porcupine Ray<br />
Urogymnus asperrimus (Bloch & Schneider, 1801)<br />
2<br />
1<br />
3<br />
4<br />
Other names: Roughskin Stingaree, Solander’s Ray, Thorny Ray (English), Pari Duren<br />
(Indonesian), Pari Dedap, Pari Duri, Pari Durian (Malaysian)<br />
Identifying features:<br />
1 dorsal surface very rough, covered with long, sharp thorns<br />
2 profile of disc almost circular<br />
3 base of tail narrow, rounded in cross-section rather than depressed<br />
4 no skin folds or stinging spines on tail<br />
Size: Possibly to 147 cm DW; males and females mature at 90 and 100 cm DW<br />
respectively.<br />
Distribution: Widespread in the Indo–West Pacific; east Africa and the Red Sea to<br />
northern Australia and Fiji, north to Japan. Also reported off central Africa in the tropical<br />
eastern Atlantic.<br />
Habitat and biology: Demersal on insular and continental shelves; found on rubble and<br />
sand near coral reefs. Viviparous, with histotrophy; biology little known. Diet presumably<br />
consists mainly of bivalves and crustaceans which it extracts from the sediments. Its thorns<br />
are sharp and can inflict a painful injury.
M y l i o b a t o i d e i 237<br />
Utilisation: Caught rarely by demersal tangle net and trawl fisheries. Probably used for<br />
its meat, but may be discarded.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: None.<br />
References: None.<br />
Ventral disc<br />
In Borneo: Uncommon, known from<br />
off Sabah and eastern Kalimantan;<br />
possibly more widely distributed in<br />
appropriate habitat.<br />
Dasyatidae (Stingrays)<br />
1<br />
Lateral head<br />
Mouth and nostrils
238 S h a r k s a n d R a y s o f B o r n e o<br />
Longtail Butterfly Ray<br />
Gymnura poecilura (Shaw, 1804)<br />
4<br />
1<br />
2<br />
3<br />
Other names: Long-tailed Butterfly Ray (English), Pari Lowo, Pari Kelelawar<br />
(Indonesian), Pari Kelawar Bintik, Pari Tembikar (Malaysian)<br />
Identifying features:<br />
1 no dorsal fin<br />
2 tail lacking a stinging spine and with ~9 dark bands<br />
3 tail length about equal to snout-vent length (when undamaged)<br />
4 dorsal surface with faint whitish spots, sometimes plain<br />
Size: To at least 99 cm DW; males mature at about 45 cm DW; born at about 20–26 cm<br />
DW.<br />
Distribution: Tropical Indo–West Pacific; from the Red Sea eastward to southern<br />
Japan and eastern Indonesia.<br />
Habitat and biology: Demersal on the continental shelf to a depth of at least 30 m.<br />
Appears to prefer sandy habitats, often in shallow inshore waters and on sand banks.
M y l i o b a t o i d e i 239<br />
Viviparous, with histotrophy; litters of up to 7 pups after an unknown gestation period.<br />
Feeds primarily on small fishes, crustaceans and molluscs.<br />
Utilisation: Caught frequently by demersal trawlers, and taken occasionally by trammel<br />
net. Utilised widely for its meat, but of limited value due to its small size.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: None.<br />
References: Jacobsen & Bennett (2009).<br />
In Borneo: Widespread.<br />
Gymnuridae (Butterfly Rays)<br />
Ventral disc
240 S h a r k s a n d R a y s o f B o r n e o<br />
Zonetail Butterfly Ray<br />
Gymnura zonura (Bleeker, 1852)<br />
4<br />
3<br />
Other names: Bleeker’s Butterfly Ray (English), Pari Lowo, Pari Kelelawar, Pari<br />
Payung (Indonesian), Pari Kelawar, Pari Tembikar (Malaysian)<br />
Identifying features:<br />
1 small dorsal fin often present at base of tail<br />
2 small stinging spine present<br />
3 tail length about 2/3 snout-vent length (when undamaged)<br />
4 dorsal colour pattern variable, complex, usually with numerous dark spots interspersed<br />
with larger yellowish spots<br />
Size: To at least 108 cm DW; males mature by 46–50 cm DW; born at about 20–21 cm<br />
DW.<br />
Distribution: Tropical Indo–West Pacific, from India to eastern Indonesia, including<br />
the Philippines.<br />
Habitat and biology: Demersal inshore, in shallow water to depths of at least 37<br />
m. Viviparous, with histotrophy; litters of 2–4 pups, gestation period unknown. Diet<br />
consists primarily of small fishes and crustaceans.
M y l i o b a t o i d e i 241<br />
Utilisation: Frequently caught as bycatch of demersal trawl, trammel and gillnet<br />
fisheries, and occasionally by tangle nets. Utilised for its meat throughout the region,<br />
but of limited value due to its small size.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Gymnura japonica (Temminck & Schlegel): White et al. (2006b),<br />
White & Dharmadi (2007); Aetoplatea zonura Bleeker: Yano et al. (2005).<br />
References: Jacobsen & Bennett (2009).<br />
1<br />
Lateral anterior tail<br />
2<br />
In Borneo: Sarawak, Sabah, and eastern<br />
and western Kalimantan.<br />
Gymnuridae (Butterfly Rays)<br />
Ventral disc
242 S h a r k s a n d R a y s o f B o r n e o<br />
Longhead Eagle Ray<br />
Aetobatus flagellum (Bloch & Schneider, 1801)<br />
2<br />
5<br />
1<br />
Other names: None (English), Pari Burung (Indonesian), Pari Lang (Malaysian)<br />
Identifying features:<br />
1 dorsal disc surface plain, unspotted<br />
2 snout very long, narrowly rounded<br />
3 nasal curtain V-shaped<br />
4 teeth in a single row in both jaws, chevron-shaped<br />
5 spiracles dorsolateral on head<br />
Size: To at least 72 cm DW; males mature at >44 cm DW.<br />
Distribution: Tropical Indo–West Pacific, from the Red Sea to Indonesia and Malaysia;<br />
Japanese populations appear to belong to a larger, distinct species.<br />
Habitat and biology: Habitat and biology poorly known; locally, appears to occur<br />
offshore. Presumably viviparous, with histotrophy. Diet unknown but likely to consist of
M y l i o b a t o i d e i 243<br />
bivalves and other hard-shelled invertebrates.<br />
Utilisation: Caught infrequently, usually by bottom trawl and demersal gillnet fisheries.<br />
Used for its meat, but of limited value due to its rarity.<br />
Conservation status: IUCN Red List: Endangered.<br />
Local synonyms: None.<br />
References: None.<br />
Upper tooth plate<br />
3<br />
Ventral head<br />
In Borneo: Uncommon, known from<br />
western Kalimantan and northeastern<br />
Sabah.<br />
Myliobatidae (Eagle Rays)<br />
4<br />
Lower tooth plate
244 S h a r k s a n d R a y s o f B o r n e o<br />
Whitespotted Eagle Ray<br />
Aetobatus ocellatus (Kuhl, 1823)<br />
2<br />
5<br />
1<br />
Other names: Bonnet Skate, Duckbill Ray, Spotted Eagle Ray (English), Pari Burung,<br />
Pari Ayam (Indonesian), Pari Lang Bintik Putih, Pari Lang, Pari Helang (Malaysian)<br />
Identifying features:<br />
1 dorsal disc surface usually with numerous white spots (sometimes sparse and<br />
confined to posterior disc)<br />
2 snout moderately long, broadly rounded<br />
3 nasal curtain V-shaped<br />
4 teeth in a single row in both jaws, chevron-shaped<br />
5 spiracles dorsolateral on head<br />
Size: To at least 300 cm DW (possibly to 330 cm DW), more commonly to about<br />
160 cm DW; males mature at 100–110 cm DW; born at 33–36 cm DW.<br />
Distribution: Tropical and warm temperate seas of the Indo–West Pacific, from the<br />
Red Sea and South Africa to Hawaii, north to Japan, and south to Australia.
M y l i o b a t o i d e i 245<br />
Habitat and biology: Inshore and benthopelagic on continental shelves, occasionally<br />
found in estuaries and near atolls, but also well offshore in open water. Viviparous, with<br />
histotrophy; gives birth to litters of 2–4 pups after an unknown gestation period. Diet<br />
consists primarily of bivalves, as well as gastropods, polychaetes, small fishes, crustaceans<br />
and cephalopods. Belongs to a group of very similar, white-spotted eagle rays.<br />
Utilisation: Commonly taken by demersal tangle net, bottom trawl, inshore gillnet<br />
and, to a lesser extent, demersal longline. Caught for its meat and cartilage.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: Aetobatus narinari (Euphrasen, 1790): Yano et al. (2005), White et al.<br />
(2006b); Aetobatus cf. narinari (Euphrasen, 1790): Compagno et al. (2005b); Aetobatus<br />
guttatus (Shaw, 1804): Compagno & Last (1999a); Raia quinqueaculeata Quoy & Gaimard,<br />
1824.<br />
References: White et al. (2010d).<br />
3<br />
Ventral head<br />
Myliobatidae (Eagle Rays)<br />
In Borneo: Widespread.<br />
Upper tooth plate<br />
4<br />
Juvenile - dorsal disc (465 mm DW)<br />
Lower tooth plate
246 S h a r k s a n d R a y s o f B o r n e o<br />
Mottled Eagle Ray<br />
Aeto<strong>my</strong>laeus maculatus (Gray, 1834)<br />
1<br />
6<br />
4<br />
3<br />
2<br />
Other names: Ocellate Eagle Ray, Ornate Eagle Ray (English), Pari Burung<br />
(Indonesian), Pari-lang Tompok Putih (Malaysian)<br />
Identifying features:<br />
1 fleshy ridge on side of head not connected to edge of disc<br />
2 sting absent<br />
3 dorsal-fin posterior margin upright, its origin slightly posterior to pelvic-fin<br />
insertions<br />
4 upper surface brown with whitish spots (with weak ocelli on posterior half of disc in<br />
young)<br />
5 edge of nasal curtain near mouth almost straight<br />
6 spiracles lateral on head<br />
7 small eagle ray, attaining about 100 cm DW<br />
Size: To at least 100 cm DW; males mature by 71 cm DW; born at about 29 cm DW.<br />
Distribution: Eastern Indian Ocean to western Pacific including Malaysia, Thailand,<br />
Indonesia and southern China; possibly west to India and excluding Australia.
M y l i o b a t o i d e i 247<br />
Habitat and biology: Largely unknown, but typically found inshore. Presumably<br />
viviparous, with histotrophy. Diet unknown, but possibly consists of bivalves and other<br />
bottom-dwelling invertebrates. A similar form in the western Indian Ocean appears to<br />
be another species.<br />
Utilisation: Caught occasionally in the region by bottom trawl, tangle net and inshore<br />
gillnet fisheries. Used for its meat, but of limited value as it is not frequently landed.<br />
Conservation status: IUCN Red List: Endangered.<br />
Local synonyms: None. Authority previously considered to be Gray, 1832 but publication<br />
date listed on Eschmeyer’s Catalog of Fishes as 1 October 1834.<br />
References: None.<br />
5<br />
Ventral head<br />
In Borneo: Widespread.<br />
Myliobatidae (Eagle Rays)<br />
Upper tooth plate<br />
4<br />
Juvenile - dorsal disc (~250 mm DW)<br />
Lower tooth plate
248 S h a r k s a n d R a y s o f B o r n e o<br />
Banded Eagle Ray<br />
Aeto<strong>my</strong>laeus nichofii (Bloch & Schneider, 1801)<br />
1<br />
6<br />
4<br />
3<br />
2<br />
Other names: Barbless Eagle Ray, Nieuhof’s Eagle Ray (English), Pari Burung, Pe<br />
Lamping (Indonesian), Pari-lang Jalur (Malaysian)<br />
Identifying features:<br />
1 fleshy ridge on side of head not connected to edge of disc<br />
2 sting absent<br />
3 dorsal-fin posterior margin strongly angled, its origin slightly anterior to or opposite<br />
pelvic-fin insertions<br />
4 upper surface yellowish brown with about 5 bluish bands (often faint)<br />
5 edge of nasal curtain near mouth almost straight<br />
6 spiracles lateral on head<br />
Size: To at least 72 cm DW; males mature at 39–42 cm DW; born at about 17 cm DW.<br />
Distribution: Indo–West Pacific from India (possibly westwards to the Arabian Gulf)<br />
through Indonesia and northward to Japan; excluding Australia.
M y l i o b a t o i d e i 249<br />
Habitat and biology: Occurs on or near the bottom intertidally, but mainly offshore<br />
to depths of at least 70 m. Little known of its biology; viviparous, with histotrophy; gives<br />
birth to litters of up to 4 pups after an unknown gestation period. Diet presumably consists<br />
of bivalves and other small invertebrates. A similar form occurring in Australian seas<br />
appears to be a distinct species.<br />
Utilisation: Frequently caught by bottom trawl and inshore gillnets but in low numbers.<br />
Used for its meat, but of limited value due to its small size.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: None.<br />
References: None.<br />
5<br />
Ventral head<br />
In Borneo: Widespread.<br />
Myliobatidae (Eagle Rays)<br />
Upper tooth plate<br />
Lower tooth plate
250 S h a r k s a n d R a y s o f B o r n e o<br />
Ornate Eagle Ray<br />
Aeto<strong>my</strong>laeus vespertilio (Bleeker, 1852)<br />
1<br />
6<br />
4<br />
3<br />
2<br />
Other names: Reticulate Eagle Ray (English), Pari Burung (Indonesian), Pari Lang<br />
Bunga (Malaysian)<br />
Identifying features:<br />
1 fleshy ridge on side of head not connected to edge of disc<br />
2 sting absent<br />
3 dorsal-fin posterior margin upright, its origin posterior to pelvic-fin insertions<br />
4 upper surface greenish brown with thin dark transverse lines anteriorly and whitish<br />
rings and dark reticulations posteriorly<br />
5 edge of nasal curtain near mouth almost straight<br />
6 spiracles lateral on head<br />
7 large eagle ray, attaining 300 cm or more DW<br />
Size: To at least 300 cm DW (possibly to 350 cm DW); males mature by 170 cm DW.<br />
Distribution: Indo–West Pacific but patchy; southern Africa to China (including<br />
Taiwan), and south to northern Australia.<br />
Habitat and biology: Habitat and biology little known, typically found on the continen-
M y l i o b a t o i d e i 251<br />
tal shelf but rarely near the coast. Presumably viviparous, with histotrophy. Diet probably<br />
consists of bivalves and other bottom-dwelling invertebrates. Juveniles of the smaller<br />
Aeto<strong>my</strong>laeus maculatus also have an ornate colour pattern but lack distinctive transverse<br />
black lines on the anterior disc.<br />
Utilisation: Caught rarely by bottom trawl and tangle net fisheries. Used primarily for<br />
its meat, but of limited value as it is not frequently landed.<br />
Conservation status: IUCN Red List: Endangered.<br />
Local synonyms: None.<br />
References: None.<br />
5<br />
Ventral head<br />
In Borneo: Known locally from a<br />
few individuals collected off Sabah and<br />
Kalimantan.<br />
Myliobatidae (Eagle Rays)<br />
Upper tooth plate<br />
Lower tooth plate
252 S h a r k s a n d R a y s o f B o r n e o<br />
Javanese Cownose Ray<br />
Rhinoptera javanica Müller & Henle, 1841<br />
1<br />
2<br />
5<br />
7<br />
4<br />
Other names: Cow Ray, Flapnose Ray (English), Pari Burung, Pari Elang<br />
(Indonesian), Pari-kelawar Jawa, Pari Ayam, Pari Lang, Pari Susun (Malaysian)<br />
Identifying features:<br />
1 snout strongly notched medially to form two lobes<br />
2 head relatively narrow, its width at spiracle 14.5–16% of disc width<br />
3 rostral flap short, its fleshy posterior edge not (or just) reaching mouth<br />
4 tail long, about 2.6–3.4 times disc length (when undamaged)<br />
5 dorsal-fin origin distinctly behind pectoral-fin insertions<br />
6 posterior margin of dorsal fin strongly concave<br />
7 sting base (when present) behind dorsal-fin free rear tip<br />
8 large species, adults possibly exceeding 150 cm DW<br />
Size: To at least 150 cm DW; males still immature at 90 cm DW, newborns observed at<br />
38 cm DW.
M y l i o b a t o i d e i 253<br />
Distribution: Central western Pacific, from Thailand to Australia and north to the East<br />
China Sea; poorly defined due to confusion with other species.<br />
Habitat and biology: Preferred habitat and biology poorly known; patchy, but most<br />
common inshore in bays, estuaries and near coral reefs. Viviparous, with histotrophy; one<br />
large pregnant female in Indonesia (~130 cm DW) contained a single, late-term embryo<br />
of about 60 cm DW. Diet presumably consists mainly of bivalves and other bottomdwelling<br />
invertebrates.<br />
Utilisation: Caught occasionally by bottom trawl, demersal inshore gill and tangle net<br />
fisheries. Sold mainly for its meat, but not of high value.<br />
Conservation status: IUCN Red List: Vulnerable.<br />
Local synonyms: Rhinoptera adspersa Müller & Henle, 1841.<br />
References: None.<br />
1<br />
3<br />
Rhinopteridae (Cownose Rays)<br />
Ventral head<br />
In Borneo: Apparently uncommon,<br />
known only from eastern Sabah and<br />
western Kalimantan.<br />
3<br />
5 6<br />
7<br />
Lateral dorsal fin and anterior tail<br />
Lateral head
254 S h a r k s a n d R a y s o f B o r n e o<br />
Short-tail Cownose Ray<br />
Rhinoptera jayakari Boulenger, 1895<br />
1<br />
2<br />
5<br />
7<br />
4<br />
Other names: None (English), Pari Elang (Indonesian), Pari Lang (Malaysian)<br />
Identifying features:<br />
1 snout strongly notched medially to form two lobes<br />
2 head relatively broad, its width at spiracle 16.5–17.5% of disc width<br />
3 rostral flap long, its fleshy posterior edge extending past mouth (almost to 1 st gill<br />
slit)<br />
4 tail short, about 1.4–1.8 times disc length (when undamaged)<br />
5 dorsal-fin origin over or slightly forward of pectoral-fin insertions<br />
6 dorsal-fin posterior margin almost upright<br />
7 sting base (when present) beneath dorsal-fin inner margin<br />
8 smaller species, adults attaining at least 90 cm DW<br />
Size: To at least 90 cm DW, possibly to 110 cm DW in the western Indian Ocean; male<br />
holotype sexually mature at about 73 cm DW.
M y l i o b a t o i d e i 255<br />
Distribution: Widespread in the tropical Indo–West Pacific, from southern Africa to<br />
eastern Indonesia, north to Japan and possibly Australia; poorly defined and often<br />
confused with R. javanica.<br />
Habitat and biology: Preferred habitat and biology poorly known. Often pelagic in<br />
large schools, near the coast and well offshore; the more abundant of the two cownose<br />
rays in the region. Presumably viviparous, with histotrophy. Diet unknown but probably<br />
consisting mainly of bottom-dwelling invertebrates, as well as small pelagic animals.<br />
Utilisation: Caught occasionally by bottom trawl, demersal inshore gill and tangle net<br />
fisheries. Sold mainly for its meat, but of limited value.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: Rhinoptera sewelli Misra, 1946; Rhinoptera sp. 1: White et al. (2006b).<br />
References: None.<br />
1<br />
3<br />
Rhinopteridae (Cownose Rays)<br />
Ventral head<br />
In Borneo: Known off eastern Sabah,<br />
southern Sarawak and northwestern<br />
Kalimantan.<br />
5 6<br />
7<br />
3<br />
Lateral head<br />
Lateral dorsal fin and anterior tail
256 S h a r k s a n d R a y s o f B o r n e o<br />
Manta Ray<br />
Manta birostris (Walbaum, 1792)<br />
2<br />
1<br />
Other names: Devilfish, Manta, Giant Manta (English), Pari Kerbua, Plampangan,<br />
Cawang Kalung (Indonesian), Pari Kelawar, Pari Paus (Malaysian)<br />
Identifying features:<br />
1 head very broad<br />
2 mouth blackish, at end of snout<br />
3 teeth absent from upper jaw<br />
4 calcified lump posterior to dorsal fin<br />
5 large triangular blotch abutting 5 th gill slit<br />
6 attains a very large size, often well over 4 m wide<br />
Size: To at least 670 cm DW, unconfirmed reports to 910 cm DW need verifying;<br />
males and females mature at about 375–380 and 380–410 cm DW respectively; born at<br />
122–149 cm DW.<br />
Distribution: Circumtropical, occasionally making seasonal incursions into warm<br />
temperate waters.<br />
Habitat and biology: Wide-ranging, pelagic species found near the surface in tropical
M y l i o b a t o i d e i 257<br />
seas. Common near coral reefs but also occurs in the open ocean and inshore in muddy<br />
bays and river mouths. Swims continuously and rarely rests on the bottom. Viviparous,<br />
with histotrophy; gives birth to a single pup after an unknown gestation period. Feeds<br />
on zooplankton and small fishes; appears frequently over coral reefs during seasonal<br />
plankton blooms. Tends to be inquisitive and is easily approached by divers. A related<br />
species, M. alfredi (Krefft), has recently been recognised and has been recorded from<br />
north of Sabah. It lacks a caudal spine and calcified mass behind the dorsal fin, and has a<br />
paler mouth with a narrow streak at the end of the 5 th gill slit.<br />
Utilisation: Considered to be very vulnerable to overfishing but not observed in local<br />
markets. Elsewhere, caught occasionally by gillnet and harpoon fisheries and utilised for<br />
its gill filter plates (very high value), meat, cartilage and skin. Has considerable value for<br />
dive ecotourism.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: None.<br />
References: White et al. (2006a); Marshall et al. (2009).<br />
3<br />
Mobulidae (Devilrays)<br />
5<br />
Ventral head<br />
In Borneo: Single record from a fish<br />
market in northwestern Kalimantan<br />
presumably this species; observed regularly<br />
by divers at Derawan and Sipadan islands<br />
off eastern Borneo.<br />
4<br />
Embryo<br />
Lateral dorsal fin and anterior tail
258 S h a r k s a n d R a y s o f B o r n e o<br />
Borneo Devilray<br />
Mobula sp.<br />
1<br />
2<br />
4<br />
5<br />
Other names: None (English), none (Indonesian), Pari Paus (Malaysian)<br />
Identifying features:<br />
1 cephalic lobes relatively long, about 15% DW<br />
2 anterior margin of snout deeply concave<br />
3 mouth width much less than twice distance from its angle to junction of head lobe<br />
4 dorsal fin white tipped<br />
5 base of tail almost quadrangular in cross section<br />
6 spiracles located underneath disc edge<br />
7 mouth subterminal, located on underside of head<br />
Size: To at least 80 cm DW; nothing known of size at maturity or birth.<br />
Distribution: Possibly confined to the Indo–West Pacific, but its range not well<br />
defined.<br />
Habitat and biology: An uncommon, presumably inshore pelagic species. Biology<br />
unknown, presumably viviparous, with histotrophy. Diet probably consists of planktonic
M y l i o b a t o i d e i 259<br />
crustaceans, and possibly small fishes and cephalopods. Known from few specimens and<br />
its relationship to M. kuhlii needs further evaluation.<br />
Utilisation: Limited and not commonly observed in markets.<br />
Conservation status: IUCN Red List: Not Evaluated.<br />
Local synonyms: None.<br />
References: None.<br />
1<br />
2<br />
3<br />
7<br />
Ventral head<br />
In Borneo: Known from off Kuching,<br />
Sarawak.<br />
Mobulidae (Devilrays)<br />
6<br />
Dorsolateral head
260 S h a r k s a n d R a y s o f B o r n e o<br />
Japanese Devilray<br />
Mobula japanica (Müller & Henle, 1841)<br />
1<br />
Other names: Spinetail Mobula, Spinetail Devilray (English), Cawang Genul,<br />
Lampengan, Pari Lambingan, Plampangan (Indonesian), Pari Paus (Malaysian)<br />
Identifying features:<br />
1 disc broad and slightly falcate<br />
2 dorsal fin conspicuously white tipped<br />
3 small sting present on tail base<br />
4 spiracles slit-like and elliptical, located above disc edge<br />
5 mouth subterminal, located on underside of head<br />
Size: To at least 310 cm DW (usually less than 250 cm); males mature at 198–205 cm;<br />
late-term embryos observed up to 113 cm DW.<br />
Distribution: Circumtropical, occasionally making seasonal incursions into warm<br />
temperate waters.<br />
Habitat and biology: A large pelagic inshore and offshore (possibly oceanic) devilray.<br />
Viviparous, with histotrophy; gives birth to a single pup after an unknown gestation
M y l i o b a t o i d e i 261<br />
period. Feeds mainly on zooplankton and small fishes. Occurs in large schools and is<br />
occasionally observed by divers. Often confused with other devilrays.<br />
Utilisation: Rarely landed in Borneo but common bycatch of gillnet fisheries in other<br />
parts of the archipelago. Used for its gill filter plates (very high value), meat, cartilage<br />
and skin where caught in larger numbers.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: Mobula japonica (Müller & Henle): Yano et al. (2005).<br />
References: White et al. (2006a).<br />
Late-term embryo (498 mm DW)<br />
2<br />
3<br />
In Borneo: Recorded from Semporna in<br />
east Sabah.; probably widespread.<br />
Mobulidae (Devilrays)<br />
Lateral dorsal fin and sting<br />
4<br />
5<br />
Dorsolateral head<br />
Ventral head
262 S h a r k s a n d R a y s o f B o r n e o<br />
Lesser Devilray<br />
Mobula kuhlii (Müller & Henle, 1841)<br />
2<br />
1<br />
5<br />
Other names: Shortfin Devilray, Shorthorn Devilray (English), Pari Lambingan, Pari<br />
Lampengan (Indonesian), Pari Kelawar, Pari Paus, Tanpa Duri (Malaysian)<br />
Identifying features:<br />
1 cephalic lobes relatively short, 12–14% DW<br />
2 anterior margin of snout slightly concave<br />
3 mouth width much more than twice distance from its angle to junction of head lobe<br />
4 dorsal fin not white tipped<br />
5 base of tail quadrangular in cross section<br />
6 spiracles subcircular, located underneath disc edge<br />
7 mouth subterminal, located on underside of head<br />
Size: To at least 120 cm DW; males mature at 115–119 cm DW; born at about 31 cm<br />
DW.<br />
Distribution: Indo–West Pacific from eastern Africa to Indonesia, but actual range not<br />
well defined.
M y l i o b a t o i d e i 263<br />
Habitat and biology: A locally uncommon, small, inshore devilray. Viviparous, with<br />
histotrophy; probably giving birth to only a single pup. Diet unknown but presumably<br />
consists of planktonic crustaceans, and possibly small fishes and cephalopods. Other<br />
Mobula species probably occur in the deep oceanic waters off northern and eastern<br />
Borneo.<br />
Utilisation: Caught occasionally by sea gypsies off eastern Sabah and marketed mainly<br />
for its meat.<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: Dicerobatis draco Günther, 1872.<br />
References: White et al. (2006a).<br />
1<br />
2<br />
3<br />
7<br />
Mobulidae (Devilrays)<br />
Ventral head<br />
In Borneo: Northeastern Borneo, off<br />
Sabah.<br />
4<br />
6<br />
5<br />
Lateral dorsal fin and anterior tail<br />
Dorsolateral head
264 S h a r k s a n d R a y s o f B o r n e o<br />
Bentfin Devilray<br />
Mobula thurstoni (Lloyd, 1908)<br />
1<br />
2<br />
5<br />
6<br />
Other names: Smoothtail Mobula (English), Pari Lempengan, Pari Lambingan,<br />
Plampangan (Indonesian), Pari Paus, Sirip Lekuk (Malaysian)<br />
Identifying features:<br />
1 cephalic lobes relatively short, 12–14% DW<br />
2 anterior margin of snout slightly concave<br />
3 mouth width much more than twice distance from its angle to junction of head lobe<br />
4 dorsal fin with prominent white tip<br />
5 outer anterior margin of pectoral fin with distinct concavity<br />
6 tail base depressed<br />
7 spiracles subcircular, located underneath disc edge<br />
8 mouth subterminal, located on underside of head<br />
Size: To at least 189 cm DW; males mature at 150–154 cm DW; born at 65–85 cm DW.<br />
Distribution: Probably circumtropical, but only known from scattered localities.<br />
Habitat and biology: Elsewhere in the archipelago, this medium-size devilray is a
M y l i o b a t o i d e i 265<br />
common coastal inshore and offshore pelagic species. Viviparous, with histotrophy;<br />
probably giving birth to a single pup. Feeds almost exclusively on planktonic<br />
crustaceans.<br />
Utilisation: Probably caught only occasionally and used for its meat, cartilage and skin.<br />
Conservation status: IUCN Red List: Near Threatened.<br />
Local synonyms: None.<br />
References: White et al. (2006a).<br />
1<br />
2<br />
3<br />
8<br />
Ventral head<br />
In Borneo: Single record from the<br />
Sandakan fish market, northeastern<br />
Sabah.<br />
Mobulidae (Devilrays)<br />
4<br />
6<br />
7<br />
Lateral dorsal fin and anterior tail<br />
Dorsolateral head
266 S h a r k s a n d R a y s o f B o r n e o<br />
Silver Chimaera<br />
Chimaera phantasma Jordan & Snyder, 1900<br />
4<br />
6<br />
2<br />
3<br />
5<br />
1<br />
7<br />
Other names: Ghost Shark (English), Hiu Hantu, Hiu Pogak (Indonesian), Chimara<br />
Perak, Ikan Tikus (Malaysian)<br />
Identifying features:<br />
1 anal fin present, separated from caudal fin by a narrow notch<br />
2 trunk lateral line canal with tight undulations along entire length<br />
3 body silver, occasionally with poorly defined dark longitudinal stripes<br />
4 1 st dorsal-fin spine long, extending to near or beyond fin apex<br />
5 2 nd dorsal fin dusky with a darker outer margin<br />
6 snout blunt, fleshy and short<br />
7 tail whip-like<br />
8 preopercular and oral lateral-line canals branch separately from the infraorbital canal<br />
Size: To at least 110 cm; males and females mature at >65 cm.<br />
Distribution: Western North Pacific, from Japan south to the Philippines and Borneo.<br />
Habitat and biology: Demersal on continental shelves and upper slopes in depths of<br />
20–550 m (150–200 m off Sarawak). Oviparous, depositing elliptical egg capsules (20<br />
cm in length) which have numerous longitudinal lines on surface. Diet consists of small<br />
benthic animals.<br />
Utilisation: Rarely caught in deeper waters by longlines and trawlers. Probably used for<br />
its meat as the flesh is good quality.
C h i m a e r i f o r m e s 267<br />
Conservation status: IUCN Red List: Data Deficient.<br />
Local synonyms: Chimaera sp.: Yano et al. (2005).<br />
References: Masuda et al. (1975); Dagit (2006).<br />
6<br />
Lateral head<br />
1<br />
8<br />
Lateral tail<br />
In Borneo: Known only from off<br />
Sarawak.<br />
7<br />
Chimaeridae (Shortnose Chimaeras)<br />
2<br />
Trunk lateral line canal
268 S h a r k s a n d R a y s o f B o r n e o<br />
Acknowledgements<br />
Many people have helped in one way or another in both the preparation of the book<br />
and in the project itself. This ground-breaking, joint Indonesian–Malaysian–American–<br />
Australian project was made possible primarily by the financial support of the National<br />
Science Foundation (NSF) since 2002 (grants NSF BS&I Nos. DEB 0103640, DEB<br />
0542941, DEB 0542846). Funding support was also made available from a Lerner-Gray<br />
post-doctoral award to KJ in 2006 and also the Judith Humphry Shaw fund.<br />
The project could not have succeeded without the assistance and advice of numerous<br />
colleagues. We would particularly like to thank: Dato’ Junaidi bin Che Ayub (Director<br />
General of Fisheries Malaysia), Raja Mohammad Noordin bin Raja Omar (Director<br />
of Fisheries Research Institute Malaysia), Albert Chuan Gambang (Head of Fisheries<br />
Research Institute Sarawak), Saleem Mustafa (Director, Borneo Marine Research Institute,<br />
Universiti Malaysia Sabah), Ridzwan Abdul Rahman (former Director, Borneo Marine<br />
Research Institute, Universiti Malaysia Sabah), Edward Rooney Biusing (former Deputy<br />
Director Fisheries Sabah) and Mohammed Adrim (LIPI). Colleagues participating in the<br />
UK Darwin project, particularly Sarah Fowler, Leonard Compagno, Rachael Cavanagh,<br />
Scott Mycock, Sid Cook and Michael Sugden, helped set the scene for this project.<br />
The genetics component of the project was made possible by the help of a number of<br />
colleagues, particularly Kerri Matthes, Clemens Lakner, Neil Aschliman (Florida State<br />
University) and Shannon Corrigan (CSIRO).<br />
Projects such as these are not possible without assistance during the numerous surveys<br />
and we would like to thank the following people for their help in the field: Loren Caira,<br />
Claire Healy (Royal Ontario Museum, Toronto), Hamri bin Hgi-Kating (Mukah trawler,<br />
Sarawak), Latip Sait (Sematan trawler, Sarawak), Asni Etin, Masni Etin and Salik Etin<br />
(Kampung Abai, Kinabatangan), staff of the Sabah Fisheries Department, Semporna<br />
district (for arranging use of their boat), Anchain and Roslie (Kampung Tetabuan,<br />
Sabah), the village head and family of Kampung Tetabuan at Labuk Bay, staff of UMS<br />
Seaweed Project, Pulau Banggi, Kudat district (for arranging use of their boat), Justin<br />
Tampuling (Universiti Malaysia Sabah), Mengke (Sungai Kakap), Junardi and Mugi<br />
Utomo (University of Tanjungpura), and the numerous people at each of the landing sites<br />
visited. Thanks also to Zainal Abidin and family (Kuching Fisheries, Sarawak), Rayner<br />
Galid (Director of Fisheries, Kota Kinabalu), Charles Greenwald (Jakarta), Isnol (fisheries<br />
officer, Sungai Kakap, Kalimantan), Alang (Jungkat ray collector, Kalimantan), Albert<br />
Gambang (Kuching Fisheries, Sarawak) for allowing us to participate on a cruise on their<br />
vessel KK Manchong.<br />
Survey trips would not be possible without acquisition of collecting permits and we<br />
acknowledge the following for their assistance: Annadel Cabanban (Universiti Malaysia<br />
Sabah), Margarita Naming and Madam Eileen Yen (Sarawak Biodiversity Center), Ge<strong>org</strong>e
A c k n o w l e d g e m e n t s 269<br />
Chong (Kuching Fisheries, Sarawak), Suharsono (Director of Research Centre for<br />
Oceanography LIPI, Jakarta), Ono Kurnaen Sumadhinarga (LIPI, Jakarta), Dedy Darnaedi<br />
(LIPI, Bogor), and Ruben Silitonga and Sri Wahyono (LIPI, Jakarta).<br />
The collections in Malaysian Borneo were conducted under the following permits<br />
and research agreements: UPE:40/200/19SJ.924 and UPE:40/200/19SJ.925 from the<br />
Economic Planning Unit in Kuala Lumpur; No. JKM 100-24/13/1/223(59) from the<br />
Chief Minister’s Department, Kota Kinabalu, Sabah, Malaysia; No. SBC-RA-0050-JNC<br />
from the Sarawak Biodiversity Center in Kuching; permit Nos. 06252/SU.3/KS/2006 and<br />
3861/SU.3/KS/2007 from LIPI in Jakarta, and 1586/FRP/SM/VII/2008 from RISTEK<br />
in Jakarta. Specimens collected during the project were deposited at various ichthyological<br />
collections and we thank the staff at these facilities, particularly Renny Kurnia Hadiaty<br />
and Ahmad Jauhar Arief (Museum Zoologicum Bogoriense, MZB, Cibinong), Albert Lo<br />
and Ge<strong>org</strong>e Jonis (Sabah Museum, Kota Kinabalu); Alastair Graham (CSIRO Marine &<br />
Atmospheric Research), Dave Catania (California Acade<strong>my</strong> of Sciences), and Morice<br />
Rowan, Stefanus Simon and Syuhaime Ahmat Ali (Borneo Marine Research Institute,<br />
Universiti Malaysia Sabah, Kota Kinabalu). A number of taxonomic issues arose during<br />
this project and we would like to thank the following people for providing material for<br />
comparison and assistance during museum visits: Martien van Oijen and Ronald de Ruiter<br />
(Rijksmuseum van Natuurlijke Histoire, RMNH, Leiden); Romain Causse, Bernard Séret,<br />
Guy Duhamel, Patrice Pruvost and Zora Gabsi (Muséum national d’Histoire naturelle,<br />
MNHN, Paris); Patrick Campbell and Oliver Crimmen (British Museum of Natural<br />
History, BMNH, London); Peter Bartsch (Museum fur Naturkunde, ZMB, Berlin); Ronald<br />
Vonk and Hielke Praagman (Zoologisch Museum, ZMA, Amsterdam); Gento Shinohara<br />
(National Science Museum, NSMT, Tokyo); Toshio Kawai (Hokkaido University, HUMZ,<br />
Hokkaido); Masato Moteki (Tokyo University Marine Science, MTUF, Tokyo); Kelvin<br />
Lim (National University of Singapore, NUS); Renny Kurnia Hadiaty and Ahmad Jauhar<br />
Arief (Museum Zoologicum Bogoriense, MZB, Jakarta); and Aaron Henderson (Sultan<br />
Qaboos University, Oman) and Alec Moore (RSK Group, UK).<br />
The following CSIRO Marine & Atmospheric Research (Wealth from Oceans Flagship)<br />
staff are also thanked: David Smith for project support, Louise Bell for cover page design,<br />
Louise Conboy for image preparation and acquistion, Melody Puckridge and Bob Ward<br />
for associated Barcode of Life input for some of the difficult taxa, Dan Gledhill for<br />
technical assistance, Joel MacKeen and Meredith Hepburn for acquisition of references,<br />
Tim Fountain for acquisition of meristic data, John Manger and Briana Elwood (CSIRO<br />
Publishing) for access to illustrations and map templates as well as assistance with aspects of<br />
book publishing. Thanks also to Ge<strong>org</strong>ina Davis, Stephanie Barnes and Lindsay Marshall<br />
(www.stickfigurefish.com.au) for providing high quality illustrations for the book.<br />
Some images were sourced from external localities and those that provided these images<br />
are thanked: Alec Moore (RSK Group, UK), Dr O. Gadig (Universidade Estadual Paulista,<br />
Brazil), Mike Severns (Hawaii) and Dr J. Randall (Bishop Museum, Hawaii).
270 S h a r k s a n d R a y s o f B o r n e o<br />
Images sourced outside Borneo<br />
Hexanchus griseus: lateral (Brazil). Centrophorus moluccensis: lateral (Lombok, Indonesia).<br />
Orectolobus leptolineatus: ventral head, embryo (Lombok, Indonesia). Chiloscyllium<br />
plagiosum: juvenile (Hong Kong). Nebrius ferrugineus: lateral, ventral head (Western<br />
Australia); dorsal fins (Singapore). Stegostoma fasciatum: lateral, ventral head (Queensland,<br />
Australia). Rhincodon typus: lateral (Japan). Alopias pelagicus: lateral, ventral head (Bali,<br />
Indonesia). Isurus oxyrinchus: lateral, ventral head (Lombok, Indonesia). Apristurus<br />
platyrhynchus: lateral, ventral head (New South Wales, Australia); flank denticles (Western<br />
Australia). Halaelurus maculosus: lateral, ventral head, dorsal head and anterior trunk (Bali,<br />
Indonesia); egg case (Lombok, Indonesia). Chaenogaleus macrostoma: lateral (Qatar); ventral<br />
head (West Java, Indonesia). Carcharhinus albimarginatus: lateral, ventral head (Western<br />
Australia). Carcharhinus amblyrhynchos: embryo (Lombok, Indonesia). Carcharhinus<br />
dussumieri: ventral head (West Java, Indonesia). Carcharhinus falciformis: lateral, ventral<br />
head (Lombok, Indonesia). Carcharhinus plumbeus: lateral (Bali, Indonesia). Galeocerdo<br />
cuvier: lateral (Bali, Indonesia); ventral head (Queensland, Australia). Prionace glauca: lateral<br />
(Tasmania, Australia); ventral head (Queensland, Australia).Triaenodon obesus: lateral<br />
(Bali, Indonesia). Eusphyra blochii: lateral (West Java, Indonesia); ventral head (northern<br />
Australia). Anoxypristis cuspidata: dorsal, ventral head, caudal fin (Queensland, Australia).<br />
Pristis microdon: dorsal, ventral head, caudal fin (Queensland, Australia). Pristis zijsron: dorsal,<br />
ventral head, caudal fin (Queensland, Australia). Rhina ancylostoma: dorsal (Bali, Indonesia);<br />
lateral head (East Java, Indonesia). Glaucostegus typus: ventral head (Queensland, Australia);<br />
lateral tail (West Papua, Indonesia). Plesiobatis daviesi: dorsal (West Java, Indonesia); oronasal<br />
(New South Wales, Australia). Dasyatis microps: dorsal (Gulf of Carpentaria, Australia).<br />
Dasyatis ushiei: dorsal, ventral disc, nuchal area (Lombok, Indonesia). Himantura fai: nuchal<br />
area (Queensland, Australia). Himantura granulata: dorsal (East Java, Indonesia); nuchal<br />
area (Queensland, Australia). Himantura jenkinsii: dorsal tail thorns, nuchal area (West<br />
Java, Indonesia). Himantura leoparda: ventral disc, nuchal area (Queensland, Australia), tail<br />
section - dorsal and ventral (Manila, Philippines). Himantura uarnacoides: nuchal area (West<br />
Java, Indonesia). Pteroplatytrygon violacea: dorsal (Lombok, Indonesia); ventral disc (Bali,<br />
Indonesia). Taeniurops meyeni: dorsal, ventral disc (Bali, Indonesia). Urogymnus asperrimus:<br />
dorsal (Marshall Islands). Gymnura zonura: lateral anterior tail (Bali, Indonesia). Aetobatus<br />
flagellum: dorsal, ventral head (West Java, Indonesia). Aeto<strong>my</strong>laeus vespertilio: dorsal, ventral<br />
head (Queensland, Australia). Rhinoptera javanica: ventral head, lateral head, lateral dorsal<br />
fin and anterior tail (Queensland, Australia). Rhinoptera jayakari: lateral head, lateral dorsal<br />
fin and anterior tail (Lombok, Indonesia). Manta birostris: dorsal, lateral dorsal fin and<br />
anterior tail (Lombok, Indonesia); embryo (West Java, Indonesia). Mobula japanica: dorsal,<br />
dorsolateral head (Lombok, Indonesia); lateral dorsal fin and sting (East Java, Indonesia);<br />
ventral head (Bali, Indonesia). Mobula thurstoni: dorsal, ventral head, dorsolateral head,<br />
lateral dorsal fin and anterior tail (Lombok, Indonesia).
271<br />
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Last, P.R. & Compagno, L.J.V. (1999) Family Anacanthobatidae, legskates, pp. 1462–<br />
1466. In: K.E. Carpenter & V.H. Niem (eds). FAO Species Identification Guide for<br />
Fishery Purposes. The Living Marine Resources of the Western Central Pacific. Volume 3:<br />
Batoid Fishes, Chimaeras and Bony Fishes Part I (Elopidae to Linophrynidae). Food and<br />
Agriculture Organization of the United Nations, Rome.<br />
Last, P.R., Fahmi & Ishihara, H. (2010a) Okamejei cairae sp. nov. (Rajoidei: Rajidae), a<br />
new skate from the South China Sea. In: P.R. Last, W.T. White & J.J. Pogonoski (eds).<br />
Descriptions of New <strong>Sharks</strong> and Rays from Borneo. CSIRO Marine and Atmospheric<br />
Research Paper 032.<br />
Last, P.R., Fahmi & Naylor, G.J.P. (2010b) Pastinachus stellurostris sp. nov., a new stingray<br />
(Elasmobranchii: Myliobatiformes) from Indonesian Borneo. In: P.R. Last, W.T.<br />
White & J.J. Pogonoski (eds). Descriptions of New <strong>Sharks</strong> and Rays from Borneo.<br />
CSIRO Marine and Atmospheric Research Paper 032.<br />
Last, P.R. & Lim, A.P.K. (2010) A new species of skate, Okamejei jensenae sp. nov.<br />
(Rajoidei: Rajidae), from the seas off Borneo, with a redescription of the<br />
Kwangtung Skate, Dipturus kwangtungensis Chu. In: P.R. Last, W.T. White & J.J.<br />
Pogonoski (eds). Descriptions of New <strong>Sharks</strong> and Rays from Borneo. CSIRO Marine<br />
and Atmospheric Research Paper 032.<br />
Last, P.R., Manjaji, B.M. & Yearsley, G.K. (2005) Pastinachus solocirostris sp. nov., a<br />
new species of stingray (Elasmobranchii: Myliobatiformes) from the Indo–Malay<br />
Archipelago. Zootaxa 1040: 1–16.<br />
Last, P.R. & Manjaji-Matsumoto, B.M. (2008) Himantura dalyensis sp. nov., a new<br />
estuarine whipray (Myliobatoidei: Dasyatidae) from northern Australia, pp. 283–291.<br />
In: P.R. Last, W.T. White & J.J. Pogonoski (eds). Descriptions of New Australian<br />
Chondrichthyans. CSIRO Marine and Atmospheric Research Paper 022, 358 pp.<br />
Last, P.R. & Manjaji-Matsumoto, B.M. (2010) Description of a new stingray, Pastinachus<br />
gracilicaudus sp. nov. (Elasmobranchii: Myliobatiformes), based on material from
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the Indo-Malay Archipelago. In: P.R. Last, W.T. White & J.J. Pogonoski (eds).<br />
Descriptions of New <strong>Sharks</strong> and Rays from Borneo. CSIRO Marine and Atmospheric<br />
Research Paper 032.<br />
Last, P.R., Pogonoski, J.J. & White, W.T. (2010c) A new wobbegong shark, Orectolobus<br />
leptolineatus sp. nov. (Orectolobiformes: Orectolobidae), from the Western Central<br />
Pacific. In: P.R. Last, W.T. White & J.J. Pogonoski (eds). Descriptions of New <strong>Sharks</strong><br />
and Rays from Borneo. CSIRO Marine and Atmospheric Research Paper 032.<br />
Last, P.R. & Stevens, J.D. (2009) <strong>Sharks</strong> and rays of Australia. Second Edition. CSIRO<br />
Publishing, Australia, 644 pp.<br />
Last, P.R. & White, W.T. (2008) Dasyatis parvonigra sp. nov., a new species of stingray<br />
(Myliobatoidei: Dasyatidae) from the tropical eastern Indian Ocean, pp. 275–282.<br />
In: P.R. Last, W.T. White & J.J. Pogonoski (eds). Descriptions of New Australian<br />
Chondrichthyans. CSIRO Marine and Atmospheric Research Paper 022, 358 pp.<br />
Last, P.R., White, W.T. & Stevens, J.D. (2007) Part 5 — New species of Squalus of the<br />
‘highfin megalops group’ from the Australasian region, pp. 39–53. In: P.R. Last, W.T.<br />
White & J.J. Pogonoski (eds). Descriptions of new dogfishes of the genus Squalus<br />
(Squaloidea: Squalidae). CSIRO Marine and Atmospheric Research Paper 014, 130 pp.<br />
Manjaji, B.M. (2002a) Elasmobranchs recorded from the rivers and estuaries in Sabah,<br />
pp. 194–198. In: S.L. Fowler, T.M. Reed & F.A. Dipper (eds). Elasmobranch biodiversity,<br />
conservation and management: proceedings of the international seminar and workshop, Sabah,<br />
Malaysia. Occasional Paper of the IUCN Species Survival Commission, no.25,<br />
Gland, Switzerland; Cambridge, UK: IUCN.<br />
Manjaji, B.M. (2002b) New records of elasmobranch species from Sabah, pp. 70–77.<br />
In: S.L. Fowler, T.M. Reed & F.A. Dipper (eds). Elasmobranch biodiversity, conservation<br />
and management: proceedings of the international seminar and workshop, Sabah, Malaysia.<br />
Occasional Paper of the IUCN Species Survival Commission, no.25, Gland,<br />
Switzerland; Cambridge, UK: IUCN.<br />
Manjaji-Matsumoto, B.M. & Last, P.R. (2006) Himantura lobistoma, a new whipray<br />
(Rajiformes: Dasyatidae) from Borneo, with comments on the status of Dasyatis<br />
microphthalmus. Ichthyological Research 53: 290–297.<br />
Manjaji-Matsumoto, B.M. & Last, P.R. (2008) Himantura leoparda sp. nov., a new whipray<br />
(Myliobatoidei: Dasyatidae) from the Indo–Pacific, pp. 293–301. In: P.R. Last, W.T.<br />
White & J.J. Pogonoski (eds). Descriptions of New Australian Chondrichthyans.<br />
CSIRO Marine and Atmospheric Research Paper 022, 358 pp.<br />
Masuda, H., Araga, C. & Yoshino, T. (1975) Coastal fishes of southern Japan. Tokai<br />
University Press, Tokyo, Japan. 382 pp.<br />
Mohsin, A.K.M., Hayase, S., Said, M.Z.M., Ambak, M.A., Shukoor, A.S.A. & Sekioka,<br />
M. (1988) Trawl catch composition of the EEZ of Sarawak water, pp. 123-134.<br />
In: A.K.M. Mohsin & Mohamed, M.I.H (eds) Ekspedisi Matahari ’87: a study on
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the offshore waters of the Malaysian EEZ. Universiti Peranian Malaysia, Occasional<br />
Publication No. 8.<br />
Pickell, D. & Siagian, W. (2000) Diving Bali: the underwaters jewel of Southeast Asia. Periplus<br />
Editions (HK), Ltd. 223 pp.<br />
Pierce, S.J., White, W.T. & Marshall, A.D. (2008) New record of the smalleye stingray,<br />
Dasyatis microps (Myliobatiformes: Dasyatidae) from the western Indian Ocean.<br />
Zootaxa 1734: 65–68.<br />
Schaaf-Da Silva, J.A. & Ebert, D.A. (2008) A taxonomic revision of the western<br />
North Pacific swell sharks, genus Cephaloscyllium Gill 1862 (Chondrichthyes:<br />
Carcharhiniformes: Scyliorhinidae), including two new species descriptions. Zootaxa<br />
1872: 1–28.<br />
Schlegel, H. & Müller, S. (1839) Overzigt den uit de Sunda en Moluksche zeeën<br />
bekende visschen, van de geslachten Amphiprion, Premnas, Pomacentrus, Glyphisodon,<br />
Dascyllus en Heliases. Verhandelingen over de natuurlijke geschiedenis der Nedertaldsche<br />
overzeesche bezittingen 1839–44: 17–26.<br />
Stevens, J.D. & Lyle, J.M. (1989) Biology of three hammerhead sharks (Eusphyra blochii,<br />
Sphyrna mokarran and S. lewini) from northern Australia. Australian Journal of Marine<br />
and Freshwater Research 40: 129–146.<br />
Taylor, S.M. & Bennett, M.B. (2008) Cephalopod dietary specialization and ontogenetic<br />
partitioning of the Australian weasel shark Hemigaleus australiensis White, Last &<br />
Compagno. Journal of Fish Biology 72: 917–936.<br />
White, W.T. (2007a) Aspects of the biology of carcharhiniform sharks in Indonesian<br />
waters. Journal of the Marine Biological Association of the United Kingdom 87: 1269–1275.<br />
White, W.T. (2007b) Biological observations on lamnoid sharks (Lamniformes) caught<br />
by fisheries in eastern Indonesia. Journal of the Marine Biological Association of the<br />
United Kingdom 87: 781–788.<br />
White, W.T. (2007c) Catch composition and reproductive biology of whaler sharks<br />
(Carcharhiniformes: Carcharhinidae) caught by fisheries in Indonesia. Journal of Fish<br />
Biology 71: 1512–1540.<br />
White, W.T. & Dharmadi (2007) Species and size compositions and reproductive<br />
biology of rays (Chondrichthyes, Batoidea) caught in target and non-target fisheries<br />
in eastern Indonesia. Journal of Fish Biology 70: 1809–1837.<br />
White, W.T. & Dharmadi (2010) Aspects of maturation and reproduction in<br />
hexanchiform and squaliform sharks. Journal of Fish Biology, 76: 1362–1378.<br />
White, W.T. & Last, P.R. (2006) Description of two new species of smooth-hounds,<br />
Mustelus widodoi and M. ravidus (Carcharhiniformes: Triakidae) from the Western<br />
Central Pacific. Cybium 30(3): 235–246.
276 S h a r k s a n d R a y s o f B o r n e o<br />
White, W.T., Bartron, C. & Potter, I.C. (2008) Catch composition and reproductive<br />
biology of Sphyrna lewini (Carcharhiniformes, Sphyrnidae) in Indonesian waters.<br />
Journal of Fish Biology 72: 1675–1689.<br />
White, W.T., Last, P.R. & Stevens, J.D. (2007) Halaelurus maculosus n. sp. and H. sellus n.<br />
sp., two new species of catshark (Carcharhiniformes: Scyliorhinidae) from the Indo-<br />
West Pacific. Zootaxa 1639: 1–21.<br />
White, W.T., Giles, J., Dharmadi & Potter, I.C. (2006a) Data on the bycatch fishery<br />
and reproductive biology of mobulid rays (Myliobatiformes) in Indonesia. Fisheries<br />
Research 82: 65–73.<br />
White, W.T., Last, P.R. & Lim, A.P.K. (2010a) Rediscovery of the rare and endangered<br />
Borneo Shark Carcharhinus borneensis (Bleeker, 1858) (Carcharhiniformes:<br />
Carcharhinidae). In: P.R. Last, W.T. White & J.J. Pogonoski (eds). Descriptions of New<br />
<strong>Sharks</strong> and Rays from Borneo. CSIRO Marine and Atmospheric Research Paper 032.<br />
White, W.T., Last, P.R. & Naylor, G.J.P. (2010b) Scoliodon macrorhynchos (Bleeker, 1852),<br />
a second species of spadenose shark from the Western Pacific (Carcharhiniformes:<br />
Carcharhinidae). In: P.R. Last, W.T. White & J.J. Pogonoski (eds). Descriptions of<br />
New <strong>Sharks</strong> and Rays from Borneo. CSIRO Marine and Atmospheric Research Paper<br />
032.<br />
White, W.T., Last, P.R., Naylor, G.J.P. & Harris, M. (2010c) Resurrection and<br />
redescription of the Borneo Broadfin Shark Lamiopsis tephrodes (Fowler, 1905)<br />
(Carcharhiniformes: Carcharhinidae). In: P.R. Last, W.T. White & J.J. Pogonoski (eds).<br />
Descriptions of New <strong>Sharks</strong> and Rays from Borneo. CSIRO Marine and Atmospheric<br />
Research Paper 032.<br />
White, W.T., Last, P.R., Naylor, G.J.P., Caira, J.N. & Jensen, K. (2010d) Clarification of<br />
Aetobatus ocellatus (Kuhl, 1823) as a valid species, and a comparison with Aetobatus<br />
narinari (Euphrasen, 1790) (Rajiformes: Myliobatidae). In: P.R. Last, W.T. White &<br />
J.J. Pogonoski (eds). Descriptions of New <strong>Sharks</strong> and Rays from Borneo. CSIRO<br />
Marine and Atmospheric Research Paper 032.<br />
White, W.T., Last, P.R., Stevens, J.D., Yearsley, G.K., Fahmi & Dharmadi (2006b)<br />
Economically important sharks and rays of Indonesia. ACIAR Monograph Series, No<br />
124, ACIAR Publishing, Canberra, 329 pp.<br />
Yano, K., Ahmad, A., Gambang, A.C., Idris, A.H., Solahuddin, A.R. & Aznan, Z. (2005)<br />
<strong>Sharks</strong> and rays of Malaysia and Brunei Darussalam. SEAFDEC, MFRDMD, 557 pp.
277<br />
Checklist of Borneo sharks and rays<br />
Order Hexanchiformes: Cow and Frilled <strong>Sharks</strong><br />
Family Hexanchidae: Sixgill and Sevengill <strong>Sharks</strong><br />
Hexanchus griseus (Bonnaterre, 1788) Bluntnose Sixgill Shark<br />
Order Squaliformes: Dogfish <strong>Sharks</strong><br />
Family Squalidae: Dogfishes<br />
Squalus altipinnis Last et al., 2007<br />
Family Centrophoridae: Gulper <strong>Sharks</strong><br />
Centrophorus moluccensis Bleeker, 1860<br />
Order Squatiniformes: Angelsharks<br />
Family Squatinidae: Angelsharks<br />
Squatina tergocellatoides Chen, 1963<br />
Order Heterodontiformes: Hornsharks<br />
Family Heterodontidae: Hornsharks<br />
Heterodontus zebra (Gray, 1831)<br />
Order Orectolobiformes: Carpet <strong>Sharks</strong><br />
Family Orectolobidae: Wobbegongs<br />
Orectolobus leptolineatus Last et al., 2010c<br />
Family Hemiscylliidae: Longtail Carpetsharks<br />
Chiloscyllium hasseltii Bleeker, 1852<br />
Chiloscyllium indicum (Gmelin, 1789)<br />
Chiloscyllium plagiosum (Bennett, 1830)<br />
Chiloscyllium punctatum M. & H., 1838<br />
Family Ginglymostomatidae: Nurse <strong>Sharks</strong><br />
Nebrius ferrugineus (Lesson, 1830)<br />
Family Stegostomatidae: Zebra <strong>Sharks</strong><br />
Stegostoma fasciatum (Hermann, 1783)<br />
Western Highfin Spurdog<br />
Smallfin Gulper Shark<br />
Ocellated Angelshark<br />
Zebra Hornshark<br />
Indonesian Wobbegong<br />
Indonesian Bambooshark<br />
Slender Bambooshark<br />
Whitespotted Bambooshark<br />
Brownbanded Bambooshark<br />
Tawny Nurse Shark<br />
Zebra Shark
278 S h a r k s a n d R a y s o f B o r n e o<br />
Family Rhincodontidae: Whale <strong>Sharks</strong><br />
Rhincodon typus Smith, 1828<br />
Order Lamniformes: Mackerel <strong>Sharks</strong><br />
Family Alopiidae: Thresher <strong>Sharks</strong><br />
Alopias pelagicus Nakamura, 1935<br />
Family Lamnidae: Mackerel <strong>Sharks</strong><br />
Isurus oxyrinchus Rafinesque, 1810<br />
Whale Shark<br />
Pelagic Thresher<br />
Shortfin Mako<br />
Order Carcharhiniformes: Ground <strong>Sharks</strong><br />
Family Scyliorhinidae: Catsharks<br />
Apristurus platyrhynchus (Tanaka, 1909) Bigfin Catshark<br />
Atelo<strong>my</strong>cterus marmoratus (Bennett, 1830) Coral Catshark<br />
Cephaloscyllium sarawakensis Yano et al., 2005 Sarawak Swellshark<br />
Halaelurus maculosus White et al., 2007 Indonesian Speckled Catshark<br />
Family Triakidae: Houndsharks<br />
Mustelus manazo Bleeker, 1854<br />
Starspotted Smoothhound<br />
Mustelus widodoi White & Last, 2006 Whitefin Smoothhound<br />
Family Hemigaleidae: Weasel <strong>Sharks</strong><br />
Chaenogaleus macrostoma (Bleeker, 1852) Hooktooth Shark<br />
Hemigaleus microstoma Bleeker, 1852 Sicklefin Weasel Shark<br />
Hemipristis elongata (Klunzinger, 1871) Fossil Shark<br />
Paragaleus tengi (Chen, 1963)<br />
Straight-tooth Weasel Shark<br />
Family Carcharhinidae: <strong>Whaler</strong> <strong>Sharks</strong><br />
Carcharhinus albimarginatus (Rüppell, 1837) Silvertip Shark<br />
Carcharhinus amblyrhynchoides (Whitley, 1934) Graceful Shark<br />
Carcharhinus amblyrhynchos (Bleeker, 1856) Grey Reef Shark<br />
Carcharhinus borneensis (Bleeker, 1858) Borneo Shark<br />
Carcharhinus brevipinna (M. & H., 1839) Spinner Shark<br />
Carcharhinus dussumieri (M. & H., 1839) Whitecheek Shark<br />
Carcharhinus falciformis (M. & H., 1839) Silky Shark
C h e c k l i s t o f s p e c i e s 279<br />
Carcharhinus leucas (M. & H., 1839)<br />
Carcharhinus limbatus (M. & H., 1839)<br />
Carcharhinus macloti (M. & H., 1839)<br />
Carcharhinus melanopterus (Q. & G., 1824)<br />
Carcharhinus plumbeus (Nardo, 1827)<br />
Carcharhinus sealei (Pietschmann, 1913)<br />
Carcharhinus sorrah (M. & H., 1839)<br />
Galeocerdo cuvier (Péron & Lesueur, 1822)<br />
Glyphis sp.<br />
Glyphis fowlerae Compagno et al., 2010<br />
Lamiopsis tephrodes (Fowler, 1905)<br />
Loxodon macrorhinus M. & H., 1839<br />
Prionace glauca (Linnaeus, 1758)<br />
Rhizoprionodon acutus (Rüppell, 1837)<br />
Rhizoprionodon oligolinx Springer, 1964<br />
Scoliodon macrorhynchos (Bleeker, 1852)<br />
Triaenodon obesus (Rüppell, 1837)<br />
Family Sphyrnidae: Hammerhead <strong>Sharks</strong><br />
Eusphyra blochii (Cuvier, 1816)<br />
Sphyrna lewini (Griffith & Smith, 1834)<br />
Sphyrna mokarran (Rüppell, 1837)<br />
Bull Shark<br />
Common Blacktip Shark<br />
Hardnose Shark<br />
Blacktip Reef Shark<br />
Sandbar Shark<br />
Blackspot Shark<br />
Spot-tail Shark<br />
Tiger shark<br />
Mukah River Shark<br />
Borneo River Shark<br />
Borneo Broadfin Shark<br />
Sliteye Shark<br />
Blue Shark<br />
Milk Shark<br />
Grey Sharpnose Shark<br />
Pacific Spadenose Shark<br />
Whitetip Reef Shark<br />
Winghead Shark<br />
Scalloped Hammerhead<br />
Great Hammerhead<br />
Order Rajiformes: Rays (Batoids)<br />
Suborder Pristoidei: Sawfishes<br />
Family Pristidae: Sawfishes<br />
Anoxypristis cuspidata (Latham, 1794)<br />
Pristis microdon Latham, 1794<br />
Pristis zijsron Bleeker, 1851<br />
Narrow Sawfish<br />
Freshwater Sawfish<br />
Green Sawfish
280 S h a r k s a n d R a y s o f B o r n e o<br />
Suborder Rhinoidei: Shark Rays<br />
Family Rhinidae: Shark Rays<br />
Rhina ancylostoma Bl. & Sch., 1801<br />
Suborder Rhynchobatoidei: Wedgefishes<br />
Family Rhynchobatidae: Wedgefishes<br />
Rhynchobatus australiae Whitley, 1939<br />
Rhynchobatus laevis (Bl. & Sch., 1801)<br />
Rhynchobatus springeri Comp. & Last, 2010<br />
Suborder Rhinobatoidei: Shovelnose Rays<br />
Family Rhinobatidae: Shovelnose Rays<br />
Glaucostegus thouin (Anonymous, 1798)<br />
Glaucostegus typus (Bennett, 1830)<br />
Rhinobatos formosensis Norman, 1926<br />
Suborder Torpedinoidei: Electric Rays<br />
Family Narcinidae: Numbfishes<br />
Narcine brevilabiata Bessednov, 1966<br />
Narcine lingula Richardson, 1846<br />
Narcine maculata (Shaw, 1804)<br />
Family Narkidae: Sleeper Rays<br />
Narke dipterygia (Bl. & Sch., 1801)<br />
Temera hardwickii Gray, 1831<br />
Suborder Rajoidei: Skates<br />
Family Rajidae: Skates<br />
Dipturus kwangtungensis (Chu 1960)<br />
Okamejei cairae Last et al., 2010a<br />
Okamejei hollandi (Jordan & Rich., 1909)<br />
Okamejei jensenae Last & Lim, 2010<br />
Shark Ray<br />
Whitespotted Wedgefish<br />
Smoothnose Wedgefish<br />
Broadnose Wedgefish<br />
Clubnose Guitarfish<br />
Giant Guitarfish<br />
Taiwan Guitarfish<br />
Shortlip Numbfish<br />
Rough Numbfish<br />
Darkspotted Numbfish<br />
Spot-tail Sleeper Ray<br />
Finless Sleeper Ray<br />
Kwangtung Skate<br />
Borneo Sand Skate<br />
Yellowspotted Skate<br />
Philippine Ocellate Skate
C h e c k l i s t o f s p e c i e s 281<br />
Family Anacanthobatidae: Leg Skates<br />
Sinobatis borneensis (Chan, 1965)<br />
Borneo Leg Skate<br />
Suborder Myliobatoidei: Stingrays<br />
Family Plesiobatidae: Giant Stingarees<br />
Plesiobatis daviesi (Wallace, 1967)<br />
Giant Stingaree<br />
Family Dasyatidae: Stingrays<br />
Dasyatis microps (Annandale, 1908) Smalleye Stingray<br />
Dasyatis parvonigra Last & White, 2008 Dwarf Black Stingray<br />
Dasyatis ushiei (Jordan & Hubbs, 1925) Cow Stingray<br />
Dasyatis zugei (M. & H., 1841)<br />
Sharpnose Stingray<br />
Himantura fai Jordan & Seale, 1906 Pink Whipray<br />
Himantura gerrardi (Gray, 1851)<br />
Whitespotted Whipray<br />
Himantura cf gerrardi *<br />
Borneo Whitespotted Whipray<br />
Himantura granulata (Macleay, 1883) Mangrove Whipray<br />
Himantura jenkinsii (Annandale, 1909) Jenkins’ Whipray<br />
Himantura kittipongi Vidth. & Rob., 2005 Roughback Whipray<br />
Himantura leoparda Manjaji-M. & Last, 2008 Leopard Whipray<br />
Himantura lobistoma Manjaji-M. & Last, 2006 Tubemouth Whipray<br />
Himantura oxyrhyncha (Sauvage, 1878) Longnose Marbled Whipray<br />
Himantura pastinacoides (Bleeker, 1852) Round Whipray<br />
Himantura polylepis (Bleeker, 1852) Giant Freshwater Whipray<br />
Himantura signifer Compagno & Rob., 1982 White-edge Freshwater Whipray<br />
Himantura uarnacoides (Bleeker, 1852) Bleeker’s Whipray<br />
Himantura uarnak (Forsskål, 1775) Reticulate Whipray<br />
Himantura cf uarnak *<br />
Finespot Whipray<br />
Himantura undulata (Bleeker, 1852) Honeycomb Whipray<br />
Himantura walga (M. & H., 1841) Dwarf Whipray<br />
Neotrygon kuhlii (M. & H. 1841)<br />
Bluespotted Maskray<br />
Pastinachus atrus (Macleay, 1883)<br />
Eastern Cowtail Stingray
282 S h a r k s a n d R a y s o f B o r n e o<br />
Pastinachus gracilicaudus Last & M.-M., 2010<br />
Pastinachus solocirostris Last et al., 2005<br />
Pastinachus stellurostris Last et al., 2010b<br />
Pteroplatytrygon violacea (Bonaparte, 1832)<br />
Taeniura lymma (Forsskål, 1775)<br />
Taeniurops meyeni (M. & H., 1841)<br />
Urogymnus asperrimus (Bl. & Sch., 1801)<br />
Family Gymnuridae: Butterfly Rays<br />
Gymnura poecilura (Shaw, 1804)<br />
Gymnura zonura (Bleeker, 1852)<br />
Family Myliobatidae: Eagle Rays<br />
Aetobatus flagellum (Bl. & Sch., 1801)<br />
Aetobatus ocellatus (Kuhl, 1823)<br />
Aeto<strong>my</strong>laeus maculatus (Gray, 1834)<br />
Aeto<strong>my</strong>laeus nichofii (Bl. & Sch., 1801)<br />
Aeto<strong>my</strong>laeus vespertilio (Bleeker, 1852)<br />
Family Rhinopteridae: Cownose Rays<br />
Rhinoptera javanica M. & H., 1841<br />
Rhinoptera jayakari Boulenger, 1895<br />
Family Mobulidae: Devilrays<br />
Manta birostris (Walbaum, 1792)<br />
Mobula sp.<br />
Mobula japanica (M. & H., 1841)<br />
Mobula kuhlii (M. & H., 1841)<br />
Mobula thurstoni (Lloyd, 1908)<br />
Narrowtail Stingray<br />
Roughnose Stingray<br />
Starynose Stingray<br />
Pelagic Stingray<br />
Bluespotted Fantail Ray<br />
Blotched Fantail Stingray<br />
Porcupine Ray<br />
Longtail Butterfly Ray<br />
Zonetail Butterfly Ray<br />
Longhead Eagle Ray<br />
Whitespotted Eagle Ray<br />
Mottled Eagle Ray<br />
Banded Eagle Ray<br />
Ornate Eagle Ray<br />
Javanese Cownose Ray<br />
Short-tail Cownose Ray<br />
Manta Ray<br />
Borneo Devilray<br />
Japanese Devilray<br />
Lesser Devilray<br />
Bentfin Devilray<br />
Order Chimaeriformes: Chimaeras<br />
Family Chimaeridae: Shortnose Chimaeras<br />
Chimaera phantasma Jordan & Snyder, 1900 Silver Chimaera<br />
* denotes species for which full treatments are not provided in the guide.
283<br />
Scientific names index<br />
A<br />
acutus, Rhizoprionodon 126<br />
Aetobatus flagellum 242<br />
Aetobatus ocellatus 244<br />
Aeto<strong>my</strong>laeus maculatus 246<br />
Aeto<strong>my</strong>laeus nichofii 248<br />
Aeto<strong>my</strong>laeus vespertilio 250<br />
albimarginatus, Carcharhinus 86<br />
Alopias pelagicus 62<br />
Alopiidae 29, 62–63<br />
altipinnis, Squalus 38<br />
amblyrhynchoides, Carcharhinus 88<br />
amblyrhynchos, Carcharhinus 90<br />
Anacanthobatidae 25, 178–179<br />
ancylostoma, Rhina 146<br />
Anoxypristis cuspidata 140<br />
Apristurus platyrhynchus 66<br />
asperrimus, Urogymnus 236<br />
Atelo<strong>my</strong>cterus marmoratus 68<br />
atrus, Pastinachus 222<br />
australiae, Rhynchobatus 148<br />
B<br />
birostris, Manta 256<br />
blochii, Eusphyra 134<br />
borneensis, Carcharhinus 92<br />
borneensis, Sinobatis 178<br />
brevilabiata, Narcine 160<br />
brevipinna, Carcharhinus 94<br />
C<br />
cairae, Okamejei 172<br />
Carcharhinidae 33, 86–133<br />
Carcharhiniformes 66–139<br />
Carcharhinus albimarginatus 86<br />
Carcharhinus amblyrhynchoides 88<br />
Carcharhinus amblyrhynchos 90<br />
Carcharhinus borneensis 92<br />
Carcharhinus brevipinna 94<br />
Carcharhinus dussumieri 96<br />
Carcharhinus falciformis 98<br />
Carcharhinus leucas 100<br />
Carcharhinus limbatus 102<br />
Carcharhinus macloti 104<br />
Carcharhinus melanopterus 106<br />
Carcharhinus plumbeus 108<br />
Carcharhinus sealei 110<br />
Carcharhinus sorrah 112<br />
Centrophoridae 29, 40–41<br />
Centrophorus moluccensis 40<br />
Cephaloscyllium sarawakensis 70<br />
Chaenogaleus macrostoma 78<br />
Chiloscyllium hasseltii 48<br />
Chiloscyllium indicum 50<br />
Chiloscyllium plagiosum 52<br />
Chiloscyllium punctatum 54<br />
Chimaera phantasma 266<br />
Chimaeridae 23, 266–267<br />
Chimaeriformes 266–267<br />
cuspidata, Anoxypristis 140<br />
cuvier, Galeocerdo 114<br />
D<br />
Dasyatidae 26, 182–237<br />
Dasyatis microps 182<br />
Dasyatis parvonigra 184<br />
Dasyatis ushiei 186<br />
Dasyatis zugei 188<br />
daviesi, Plesiobatis 180<br />
dipterygia, Narke 166<br />
Dipturus kwangtungensis 170<br />
dussumieri, Carcharhinus 96<br />
E<br />
elongata, Hemipristis 82
284 S h a r k s a n d R a y s o f B o r n e o<br />
Eusphyra blochii 134<br />
F<br />
fai, Himantura 190<br />
falciformis, Carcharhinus 98<br />
fasciatum, Stegostoma 58<br />
ferrugineus, Nebrius 56<br />
flagellum, Aetobatus 242<br />
formosensis, Rhinobatos 158<br />
fowlerae, Glyphis 118<br />
G<br />
Galeocerdo cuvier 114<br />
gerrardi, Himantura 192<br />
Ginglymostomatidae 30, 56–57<br />
glauca, Prionace 124<br />
Glaucostegus thouin 154<br />
Glaucostegus typus 156<br />
Glyphis fowlerae 118<br />
Glyphis sp. 116<br />
gracilicaudus, Pastinachus 224<br />
granulata, Himantura 194<br />
griseus, Hexanchus 36<br />
Gymnura poecilura 238<br />
Gymnura zonura 240<br />
Gymnuridae 26, 238–241<br />
H<br />
Halaelurus maculosus 72<br />
hardwickii, Temera 168<br />
hasseltii, Chiloscyllium 48<br />
Hemigaleidae 32, 78–85<br />
Hemigaleus microstoma 80<br />
Hemipristis elongata 82<br />
Hemiscylliidae 31, 48-55<br />
Heterodontidae 30, 44–45<br />
Heterodontiformes 44–45<br />
Heterodontus zebra 44<br />
Hexanchidae 28, 36–37<br />
Hexanchiformes 36–37<br />
Hexanchus griseus 36<br />
Himantura fai 190<br />
Himantura gerrardi 192<br />
Himantura granulata 194<br />
Himantura jenkinsii 196<br />
Himantura kittipongi 198<br />
Himantura leoparda 200<br />
Himantura lobistoma 202<br />
Himantura oxyrhyncha 204<br />
Himantura pastinacoides 206<br />
Himantura polylepis 208<br />
Himantura signifer 210<br />
Himantura uarnacoides 212<br />
Himantura uarnak 214<br />
Himantura undulata 216<br />
Himantura walga 218<br />
hollandi, Okamejei 174<br />
I<br />
indicum, Chiloscyllium 50<br />
Isurus oxyrinchus 64<br />
J<br />
japanica, Mobula 260<br />
javanica, Rhinoptera 252<br />
jayakari, Rhinoptera 254<br />
jenkinsii, Himantura 196<br />
jensenae, Okamejei 176<br />
K<br />
kittipongi, Himantura 198<br />
kuhlii, Mobula 262<br />
kuhlii, Neotrygon 220<br />
kwangtungensis, Dipturus 170<br />
L<br />
laevis, Rhynchobatus 150<br />
Lamiopsis tephrodes 120<br />
Lamnidae 31, 64–65<br />
Lamniformes 62–63
RS cu ine nitn i g f i c h en adm e s i n d e x 285<br />
leoparda, Himantura 200<br />
leptolineatus, Orectolobus 46<br />
leucas, Carcharhinus 100<br />
lewini, Sphyrna 136<br />
limbatus, Carcharhinus 102<br />
lingula, Narcine 162<br />
lobistoma, Himantura 202<br />
Loxodon macrorhinus 122<br />
lymma, Taeniura 232<br />
M<br />
macloti, Carcharhinus 104<br />
macrorhinus, Loxodon 122<br />
macrorhynchos, Scoliodon 130<br />
macrostoma, Chaenogaleus 78<br />
maculata, Narcine 164<br />
maculatus, Aeto<strong>my</strong>laeus 246<br />
maculosus, Halaelurus 72<br />
manazo, Mustelus 74<br />
Manta birostris 256<br />
marmoratus, Atelo<strong>my</strong>cterus 68<br />
melanopterus, Carcharhinus 106<br />
meyeni, Taeniurops 234<br />
microps, Dasyatis 182<br />
microstoma, Hemigaleus 80<br />
Mobula japanica 260<br />
Mobula kuhlii 262<br />
Mobula sp. 258<br />
Mobula thurstoni 264<br />
Mobulidae 27, 256–265<br />
mokarran, Sphyrna 138<br />
moluccensis, Centrophorus 40<br />
Mustelus manazo 74<br />
Mustelus widodoi 76<br />
Myliobatidae 28, 242–251<br />
Myliobatoidei 180–265<br />
N<br />
Narcine brevilabiata 160<br />
Narcine lingula 162<br />
Narcine maculata 164<br />
Narcinidae 25, 160–165<br />
Narke dipterygia 166<br />
Narkidae 25, 166–169<br />
Nebrius ferrugineus 56<br />
Neotrygon kuhlii 220<br />
nichofii, Aeto<strong>my</strong>laeus 248<br />
O<br />
obesus, Triaenodon 132<br />
ocellatus, Aetobatus 244<br />
Okamejei cairae 172<br />
Okamejei hollandi 174<br />
Okamejei jensenae 176<br />
oligolinx, Rhizoprionodon 128<br />
Orectolobidae 30, 46–47<br />
Orectolobiformes 46–61<br />
Orectolobus leptolineatus 46<br />
oxyrhyncha, Himantura 204<br />
oxyrinchus, Isurus 64<br />
P<br />
Paragaleus tengi 84<br />
parvonigra, Dasyatis 184<br />
Pastinachus atrus 222<br />
Pastinachus gracilicaudus 224<br />
Pastinachus solocirostris 226<br />
Pastinachus stellurostris 228<br />
pastinacoides, Himantura 206<br />
pelagicus, Alopias 62<br />
phantasma, Chimaera 266<br />
plagiosum, Chiloscyllium 52<br />
platyrhynchus, Apristurus 66<br />
Plesiobatidae 26, 180–181<br />
Plesiobatis daviesi 180<br />
plumbeus, Carcharhinus 108<br />
poecilura, Gymnura 238<br />
polylepis, Himantura 208<br />
Prionace glauca 124<br />
Pristidae 23, 140–145
286 S h a r k s a n d R a y s o f B o r n e o<br />
Pristis microdon 142<br />
Pristis zijsron 144<br />
Pristoidei 140–145<br />
Pteroplatytrygon violacea 230<br />
punctatum, Chiloscyllium 54<br />
R<br />
Rajidae 25, 172–179<br />
Rajoidei 172–179<br />
Rhina ancylostoma 146<br />
Rhincodontidae 30, 60–61<br />
Rhincodon typus 60<br />
Rhinidae 24, 146–147<br />
Rhinobatidae 24, 154–159<br />
Rhinobatoidei 154–159<br />
Rhinobatos formosensis 158<br />
Rhinoidei 146–147<br />
Rhinoptera javanica 252<br />
Rhinoptera jayakari 254<br />
Rhinopteridae 28, 252–255<br />
Rhizoprionodon acutus 126<br />
Rhizoprionodon oligolinx 128<br />
Rhynchobatidae 24, 148–153<br />
Rhynchobatoidei 147<br />
Rhynchobatus australiae 148<br />
Rhynchobatus laevis 150<br />
Rhynchobatus springeri 152<br />
S<br />
sarawakensis, Cephaloscyllium 70<br />
Scoliodon macrorhynchos 130<br />
Scyliorhinidae 31, 66–73<br />
sealei, Carcharhinus 110<br />
signifer, Himantura 210<br />
Sinobatis borneensis 178<br />
solocirostris, Pastinachus 226<br />
sorrah, Carcharhinus 112<br />
sp., Glyphis 116<br />
sp., Mobula 258<br />
Sphyrna lewini 136<br />
Sphyrna mokarran 138<br />
Sphyrnidae 29, 134–139<br />
springeri, Rhynchobatus 152<br />
Squalidae 29, 38–39<br />
Squaliformes 38–41<br />
Squalus altipinnis 38<br />
Squatina tergocellatoides 42<br />
Squatinidae 23, 42–43<br />
Squatiniformes 42–43<br />
Stegostoma fasciatum 58<br />
Stegostomatidae 30, 58–59<br />
stellurostris, Pastinachus 228<br />
T<br />
Taeniura lymma 232<br />
Taeniurops meyeni 234<br />
Temera hardwickii 168<br />
tengi, Paragaleus 84<br />
tephrodes, Lamiopsis 120<br />
tergocellatoides, Squatina 42<br />
thouin, Glaucostegus 154<br />
thurstoni, Mobula 264<br />
Torpedinoidei 160–169<br />
Triaenodon obesus 132<br />
Triakidae 32, 74–77<br />
typus, Glaucostegus 156<br />
typus, Rhincodon 60<br />
U<br />
uarnacoides, Himantura 212<br />
uarnak, Himantura 214<br />
undulata, Himantura 216<br />
Urogymnus asperrimus 236<br />
ushiei, Dasyatis 186<br />
V<br />
vespertilio, Aeto<strong>my</strong>laeus 250<br />
violacea, Pteroplatytrygon 230<br />
W<br />
walga, Himantura 218
S c i e n t i f i c n a m e s i n d e x 287<br />
widodoi, Mustelus 76<br />
Z<br />
zebra, Heterodontus 44<br />
zonura, Gymnura 240<br />
zugei, Dasyatis 188
288 S h a r k s a n d R a y s o f B o r n e o<br />
English common names index<br />
A<br />
Angelsharks 42–43<br />
B<br />
Banana-tail Ray 222<br />
Banded Eagle Ray 248<br />
Banded Whiptail Ray 192<br />
Barbless Eagle Ray 248<br />
Bentfin Devilray 264<br />
Bigfin Catshark 66<br />
Blackblotched Stingray 234<br />
Blackspot Shark 110<br />
Blackspotted Stingray 234<br />
Blacktip Reef Shark 106<br />
Blacktip Shark 106<br />
Blacktip <strong>Whaler</strong> 102<br />
Bleeker’s Butterfly Ray 240<br />
Bleeker’s Variegate Ray 216<br />
Bleeker’s Whipray 212<br />
Blotched Fantail Stingray 234<br />
Blue-spotted Lagoon Ray 232<br />
Blue-spotted Ribbontail Ray 232<br />
Blue Pointer 64<br />
Blue Shark 124<br />
Bluespotted Fantail Ray 232<br />
Bluespotted Maskray 220<br />
Bluespotted Stingaree 220<br />
Bluespotted Stingray 220<br />
Blue Stingray 230<br />
Blue <strong>Whaler</strong> 124<br />
Blunthead Shark 132<br />
Bluntnose Sixgill Shark 36<br />
Bluntnose Whiptail Ray 192<br />
Bonnet Skate 244<br />
Borneo Broadfin Shark 120<br />
Borneo Devilray 258<br />
Borneo Leg Skate 178<br />
Borneo River Shark 118<br />
Borneo Sand Skate 172<br />
Borneo Shark 92<br />
Bowmouth Guitarfish 146<br />
Broadnose Wedgefish 152<br />
Brownbanded Bambooshark 54<br />
Brownbanded Catshark 54<br />
Brown Shark 108<br />
Bullhead Shark 44<br />
Bull Ray 222, 234<br />
Bull Shark 36, 100<br />
Butterfly Rays 238–241<br />
C<br />
Catsharks 66–73<br />
Chinese Numbfish 162<br />
Clubnose Guitarfish 154<br />
Coachwhip Ray 194, 214<br />
Common Blacktip Shark 102<br />
Common Shovelnose Ray 156<br />
Coral Catshark 68<br />
Cownose Rays 252–255<br />
Cow Ray 252<br />
Cow Shark 36<br />
Cowsharks 36–37<br />
Cow Stingray 186<br />
D<br />
Darkfin Numbfish 164<br />
Darkspotted Electric Ray 164<br />
Darkspotted Numbfish 164<br />
Deepwater Stingray 180<br />
Devilfish 256<br />
Devilrays 256–265<br />
Dogfishes 38–39<br />
Duckbill Ray 244
E n g l i s h c o m m o n n a m e s i n d e x 289<br />
Dwarf Black Stingray 184<br />
Dwarf Whipray 218<br />
E<br />
Eagle Rays 242–251<br />
Eastern Cowtail Stingray 222<br />
Endeavour Dogfish 40<br />
F<br />
Fantail Ray 222<br />
Fantail Stingray 234<br />
Feathertail Ray 222<br />
Feathertail Stingray 222<br />
Finless Electric Ray 168<br />
Finless Sleeper Ray 168<br />
Fish Shark 126<br />
Flapnose Ray 252<br />
Fossil Shark 82<br />
Freshwater Sawfish 142<br />
Freshwater Stingray 210<br />
Freshwater <strong>Whaler</strong> 100<br />
Freshwater Whipray 208<br />
G<br />
Ghost Shark 266<br />
Giant Freshwater Stingray 208<br />
Giant Freshwater Whipray 208<br />
Giant Guitarfish 150, 156<br />
Giant Manta 256<br />
Giant Reef Ray 234<br />
Giant Shovelnose Ray 156<br />
Giant Stingaree 180<br />
Giant Stingarees 180–181<br />
Graceful Shark 88<br />
Great-tooth Sawfish 142<br />
Great Blue Shark 124<br />
Great Hammerhead 138<br />
Green Sawfish 144<br />
Grey Carpetshark 54<br />
Grey Reef Shark 90<br />
Grey Sharpnose Shark 128<br />
Guliman 106<br />
Gulper <strong>Sharks</strong> 40–41<br />
Gum<strong>my</strong> Shark 74<br />
H<br />
Hammerhead <strong>Sharks</strong> 134–139<br />
Hardnose Shark 104<br />
Hasselt’s Bambooshark 48<br />
Holland Skate 174<br />
Honeycomb Whipray 216<br />
Hooktooth Shark 78<br />
Hornsharks 44–45<br />
Houndsharks 74–77<br />
I<br />
Indonesian Bambooshark 48<br />
Indonesian Speckled Catshark 72<br />
Indonesian Wobbegong 46<br />
Indo Wobbegong 46<br />
Inkytail Shark 94<br />
J<br />
Japanese Devilray 260<br />
Japanese Smoothhound 74<br />
Javanese Cownose Ray 252<br />
Jenkins’ Whipray 196<br />
Jordan’s Blue Dogshark 122<br />
K<br />
Kidney-headed Shark 136<br />
Kuhl’s Stingray 220<br />
Kwangtung Skate 170<br />
L<br />
Lagoon Ray 232<br />
Leg Skates 178–179<br />
Leopard Shark 58<br />
Leopard Stingray 214<br />
Leopard Whipray 200<br />
Lesser Devilray 262
290 S h a r k s a n d R a y s o f B o r n e o<br />
Lesser Fantail Ray 232<br />
Long-tailed Butterfly Ray 238<br />
Longhead Eagle Ray 242<br />
Longman’s Dogshark 126<br />
Longnose Blacktail Shark 90<br />
Longnose Grey <strong>Whaler</strong> 94<br />
Longnose Marbled Whipray 204<br />
Longtail Butterfly Ray 238<br />
Longtail Carpetsharks 48–55<br />
Longtail Ray 214<br />
M<br />
Mackerel Shark 64<br />
Mackerel <strong>Sharks</strong> 64–65<br />
Macleay’s Coachwhip Ray 194<br />
Madame X 56<br />
Mako Shark 64<br />
Mangrove Ray 194<br />
Mangrove Stingray 194<br />
Mangrove Whipray 194<br />
Manta 256<br />
Manta Ray 256<br />
Marbled Freshwater Stingray 204<br />
Marbled Whipray 204<br />
Marble Ribbontail Ray 234<br />
Milk Shark 126<br />
Mottled Eagle Ray 246<br />
Mud Shark 36<br />
Mud Skate 146<br />
Mukah River Shark 116<br />
N<br />
Narrow Sawfish 140<br />
Narrowsnout Sawfish 144<br />
Narrowtail Stingray 224<br />
Nieuhof ’s Eagle Ray 248<br />
Numbfishes 160–165<br />
Numbray 166<br />
Nurse <strong>Sharks</strong> 56–57<br />
O<br />
Ocellated Angelshark 42<br />
Ocellate Eagle Ray 246<br />
Ocellate Whipray 216<br />
Ornate Eagle Ray 246, 250<br />
P<br />
Pacific Spadenose Shark 130<br />
Pale-edged Stingray 188<br />
Pale Whipray 210<br />
Pelagic Stingray 230<br />
Pelagic Thresher 62<br />
Philippine Ocellate Skate 176<br />
Pink Whipray 190<br />
Pointed Sawfish 140<br />
Porcupine Ray 236<br />
Q<br />
Queensland Shark 88<br />
R<br />
Reef Ray 232<br />
Reticulate Eagle Ray 250<br />
Reticulate Whipray 214<br />
Ribbontail Stingray 232<br />
Ridgeback Bambooshark 50<br />
Ridgeback Shark 50<br />
River <strong>Whaler</strong> 100<br />
Rough-back Stingray 196<br />
Roughback Whipray 198<br />
Rough Electric Ray 162<br />
Roughnose Stingray 226<br />
Rough Numbfish 162<br />
Roughskin Stingaree 236<br />
Round Ribbontail Ray 234<br />
Round Whipray 206<br />
S<br />
Sandbar Shark 108<br />
Sandshark 150
E n g l i s h c o m m o n n a m e s i n d e x 291<br />
Sarawak Pyg<strong>my</strong> Swell Shark 70<br />
Sarawak Pyg<strong>my</strong> Swellshark 70<br />
Sarawak Swellshark 70<br />
Sawfish 144<br />
Sawfishes 140–145<br />
Scalloped Hammerhead 136<br />
School Shark 112<br />
Shark Ray 146<br />
Shark Rays 146–147<br />
Sharpnose Stingray 188, 192<br />
Short-tail Cownose Ray 254<br />
Shortfin Devilray 262<br />
Shortfin Mako 64<br />
Shorthorn Devilray 262<br />
Shortlip Electric Ray 160<br />
Shortlip Numbfish 160<br />
Shortnose Chimaeras 266–267<br />
Shovelnose Ray 156<br />
Shovelnose Rays 154–159<br />
Shovelnose Shark 150, 152, 156<br />
Sicklefin Weasel Shark 80<br />
Silky Shark 98<br />
Silver Chimaera 266<br />
Silvertip Shark 86<br />
Sixgill Shark 36<br />
Skates 170–177<br />
Sleeper Rays 166–169<br />
Sleepy Shark 56<br />
Slender Bambooshark 50<br />
Slender Dogshark 122<br />
Slender Hammerhead 134<br />
Sliteye Shark 122<br />
Smalleye Stingray 182<br />
Smallfin Gulper Shark 40<br />
Smoothfang Shark 94<br />
Smoothnose Wedgefish 150<br />
Smoothtail Mobula 264<br />
Snaggletooth Shark 82<br />
Snapper Shark 64<br />
Solander’s Ray 236<br />
Sorrah Shark 112<br />
Spatulasnout Catshark 66<br />
Speckle Stingray 234<br />
Spinetail Devilray 260<br />
Spinetail Mobula 260<br />
Spinner Shark 94<br />
Spitting Shark 56<br />
Spot-tail Electric Ray 166<br />
Spot-tail Shark 112<br />
Spot-tail Sleeper Ray 166<br />
Spotted Catshark 54<br />
Spotted Eagle Ray 244<br />
Starspotted Smoothhound 74<br />
Starynose Stingray 228<br />
Stingrays 182–237<br />
Straight-tooth Weasel Shark 84<br />
T<br />
Taiwan Guitarfish 158<br />
Tawny Nurse Shark 56<br />
Tawny Shark 56<br />
Thickskin Shark 108<br />
Thickspine Giant Stingray 182<br />
Thornback Ray 174<br />
Thorny Ray 236<br />
Thresher <strong>Sharks</strong> 62–63<br />
Tiger Shark 114<br />
Tubemouth Whipray 202<br />
U<br />
Undulate Whipray 200<br />
V<br />
Violet Stingray 230<br />
W<br />
Weasel Shark 80<br />
Weasel <strong>Sharks</strong> 78–85<br />
Wedgefishes 148–153
292 S h a r k s a n d R a y s o f B o r n e o<br />
Western Highfin Spurdog 38<br />
<strong>Whaler</strong> <strong>Sharks</strong> 88–133<br />
Whale Shark 60<br />
Whale <strong>Sharks</strong> 60–61<br />
White-edge Freshwater Whipray 210<br />
White-eye Shark 126<br />
White-rim Stingray 210<br />
Whitecheek Shark 96<br />
Whitefin Smoothhound 76<br />
Whitenose Whipray 212<br />
Whitespot Ray 148<br />
Whitespot Shovelnose Ray 148<br />
Whitespotted Bambooshark 52<br />
Whitespotted Eagle Ray 244<br />
Whitespotted Guitarfish 148<br />
Whitespotted Wedgefish 148<br />
Whitespotted Whipray 192<br />
Whitetail Stingray 194<br />
Whitetail Whipray 194<br />
Whitetip Reef Shark 132<br />
Whitetip Shark 132<br />
Widemouth Blackspot Shark 96<br />
Wide Sawfish 142<br />
Winghead Shark 134<br />
Wobbegongs 46–47<br />
Y<br />
Yellow-spotted Skate 176<br />
Yellowspotted Skate 174<br />
Z<br />
Zebra Bullhead Shark 44<br />
Zebra Hornshark 44<br />
Zebra Port Jackson Shark 44<br />
Zebra Shark 58<br />
Zebra <strong>Sharks</strong> 58–59<br />
Zonetail Butterfly Ray 240
293<br />
Indonesian common names index<br />
C<br />
Cawang Genul 260<br />
Cawang Kalung 256<br />
Cucut Bekeman 100<br />
Cucut Botol 40<br />
Cucut Dolok 50, 52<br />
Cucut Gergaji 140<br />
Cucut Lanjaman 86, 88, 90, 94, 96, 98,<br />
102, 108, 110, 112<br />
Cucut Londer 74, 76<br />
Cucut Mandrong 154<br />
Cucut Meong 36<br />
Cucut Pedang 62<br />
Cucut Selendang 124<br />
Cucut Tokek 68<br />
H<br />
Hiu 44, 92, 148<br />
Hiu Aer 124<br />
Hiu Air 74, 76<br />
Hiu Anjing 64<br />
Hiu Aron 104<br />
Hiu Barong 146<br />
Hiu Batu 54<br />
Hiu Belimbing 58<br />
Hiu Bingkoh 134, 136, 138<br />
Hiu Bisu 56<br />
Hiu Bokem 132<br />
Hiu Bongo 52, 54<br />
Hiu Botol Danten 40<br />
Hiu Buas 100<br />
Hiu Bujit 88, 90, 94, 96, 98, 100,<br />
102, 106, 112, 120<br />
Hiu Capil 134, 136, 138<br />
Hiu Caping 134, 136, 138<br />
Hiu Cermin 156<br />
Hiu Coklat 132<br />
Hiu Gedebong 56<br />
Hiu Gedok 54, 56<br />
Hiu Gergaji 142, 144<br />
Hiu Hantu 266<br />
Hiu Jenggot 46<br />
Hiu Kacang 74, 76, 78, 80, 84<br />
Hiu Kakap 64<br />
Hiu Karang Buas 132<br />
Hiu Karet 124<br />
Hiu Kejen 102, 122, 130<br />
Hiu Kemenyan 148, 150, 152<br />
Hiu Kodok 42, 46<br />
Hiu Lalaek 124<br />
Hiu Lanyam 86, 98, 102<br />
Hiu Lepang 46<br />
Hiu Lonjor 90, 98<br />
Hiu Lontar 148, 150, 152<br />
Hiu Macan 114<br />
Hiu Mada 106<br />
Hiu Mako 64<br />
Hiu Martil 134, 136, 138<br />
Hiu Minsong 150, 152<br />
Hiu Monas 82<br />
Hiu Monyet 62<br />
Hiu Omas 114<br />
Hiu Parang 136, 138, 140, 142, 144<br />
Hiu Pasir 84<br />
Hiu Paus 60<br />
Hiu Pilus 78, 80, 126, 128<br />
Hiu Pisang 126, 128<br />
Hiu Plen 86, 94, 126<br />
Hiu Pogak 266<br />
Hiu Senget 40<br />
Hiu Sonteng 86<br />
Hiu Tahu Putih 36<br />
Hiu Taji 40<br />
Hiu Tekek 48, 50, 52, 54
294 S h a r k s a n d R a y s o f B o r n e o<br />
Hiu Tenggiri 64<br />
Hiu Teteri 108<br />
Hiu Tikus 62<br />
Hiu Tokek 68, 72<br />
I<br />
Ikan Pari 184, 232<br />
K<br />
Kluyu Blimbingan 58<br />
Kluyu Karang 106<br />
Kupu-kupu Brangkas 146<br />
L<br />
Lampengan 260<br />
Lanyam 112<br />
Liongbun 148, 150, 152, 154<br />
M<br />
Merak Bulu 90, 94, 102, 112<br />
Minsong 148<br />
Mungsing 98, 112, 126, 130<br />
Mungsing Jara 114<br />
P<br />
Paitpait 156<br />
Pamprang 140<br />
Pangrum 148, 150, 152<br />
Parangpang 140<br />
Paredung 148, 150, 152<br />
Pari 172, 180, 204, 208<br />
Pari Aer 196, 206<br />
Pari Ayam 244<br />
Pari Babi 182, 234<br />
Pari Bandrong 156<br />
Pari Batu 192<br />
Pari Bendera 222, 224, 226, 228<br />
Pari Biasa 188<br />
Pari Bintang 192<br />
Pari Blentik 220<br />
Pari Boro 186<br />
Pari Burung 242, 244, 246, 248, 250, 252<br />
Pari Duren 236<br />
Pari Duri 196<br />
Pari Elang 252, 254<br />
Pari Gitar 156<br />
Pari Gunung 226<br />
Pari Jantung 186<br />
Pari Kekeh 156<br />
Pari Kelelawar 238, 240<br />
Pari Kembang 232<br />
Pari Kerbua 256<br />
Pari Kikir 196, 218<br />
Pari Kodok 220<br />
Pari Kontak 160, 162, 164, 166, 168<br />
Pari Lambingan 260, 262, 264<br />
Pari Lampengan 262<br />
Pari Lampin 230<br />
Pari Lemer 230<br />
Pari Lempengan 264<br />
Pari Listrik 160, 162, 164, 166, 168<br />
Pari Lowo 238, 240<br />
Pari Lumpur 202, 212<br />
Pari Luncur 172, 174<br />
Pari Macan 200, 214, 216<br />
Pari Merica 214, 234<br />
Pari Minyak 190<br />
Pari Pasir 206<br />
Pari Payung 240<br />
Pari Sapi 182, 194<br />
Pari Sungai 198, 210<br />
Pari Super 192<br />
Pari Tanjung 202, 212<br />
Pari Tembaga 190<br />
Pari Totol 232<br />
Payubek 230<br />
Pe Lamping 248<br />
Pe Pasung 212<br />
Petong 148, 150, 152, 156
I n d o n e s i a n c o m m o n n a m e s i n d e x 295<br />
Plampangan 256, 260, 264<br />
T<br />
Tikusan 62<br />
Toka-toka 188<br />
Toka Toka 218<br />
Tuka-tuka 188<br />
Y<br />
Yunbun Karang 146
296 S h a r k s a n d R a y s o f B o r n e o<br />
Malaysian common names index<br />
B<br />
Bengkong 134<br />
Beroi 140<br />
C<br />
Chimara Perak 266<br />
I<br />
Ikan Tikus 266<br />
J<br />
Jerung-mako Sirip 64<br />
Jerung Biru 124<br />
Jerung Gigi Cerakah 82<br />
Jerung Sapi 100<br />
Jerung Tenggiri 114<br />
K<br />
Kan Sua 140<br />
Kemejan 152<br />
Kiampau 220, 232<br />
P<br />
Pari 152, 184<br />
Pari-karan Hitam 164<br />
Pari-kelawar Jawa 252<br />
Pari-kemejan Kepala Keras 146<br />
Pari-kemejan Muncung Panjang 154<br />
Pari-kemejan Muncung Pendek 156<br />
Pari-kemejan Tompok Putih 148<br />
Pari-lang Jalur 248<br />
Pari-lang Tompok Putih 246<br />
Pari-raja Tompok 172<br />
Pari Air Tawar 208, 210<br />
Pari Ayam 252<br />
Pari Bakau 194<br />
Pari Batik 192, 216<br />
Pari Belanda 170, 174, 176<br />
Pari Bendera 222<br />
Pari Bintik Putih 192<br />
Pari Bulat 206<br />
Pari Daun 222<br />
Pari Dedap 236<br />
Pari Duri 236<br />
Pari Durian 236<br />
Pari Ekor Duri 186<br />
Pari Gergasi 182<br />
Pari Helang 244<br />
Pari Hitam 230<br />
Pari Karan 164, 166<br />
Pari Karan Belangkas 168<br />
Pari Karang 232<br />
Pari Karan Tompok Besar 160<br />
Pari Karas 168<br />
Pari Kelabu 234<br />
Pari Kelawar 240, 256, 262<br />
Pari Kelawar Bintik 238<br />
Pari Kemejan 150<br />
Pari Ketuka 188, 218<br />
Pari Lalat 220<br />
Pari Lang 242, 244, 252, 254<br />
Pari Lang Bintik Putih 244<br />
Pari Lang Bunga 250<br />
Pari Lembik Merah 180<br />
Pari Letrik 164<br />
Pari Macan 220<br />
Pari Merah 180<br />
Pari Mulut Kasar 226<br />
Pari Mulut Tajam 202<br />
Pari Naga 196<br />
Pari Nyiru 188<br />
Pari Nyonya 222<br />
Pari Pasir 196, 212<br />
Pari Paus 256, 258, 260, 262, 264<br />
Pari Pucat 190
M a l a y s i a n c o m m o n n a m e s i n d e x 297<br />
Pari Reben 232, 234<br />
Pari Riman 220<br />
Pari Rimau 200, 214, 216, 220<br />
Pari Serban 164<br />
Pari Sungai 198, 208, 210<br />
Pari Susun 252<br />
Pari Tanjung 188, 218, 220, 222<br />
Pari Tembikar 238, 240<br />
Pendek 64<br />
S<br />
Sirip Lekuk 264<br />
T<br />
Tanpa Duri 262<br />
Tuka-tuka 218<br />
Y<br />
Yu 134<br />
Yu-buntal Sarawak 70<br />
Yu-cicak Bintik 52<br />
Yu-cicak Insang Puih 54<br />
Yu-cicak Lampai 48<br />
Yu-cicak Tembaga 50<br />
Yu-gergaji Seragam 142<br />
Yu-gergaji Silih 144<br />
Yu-jaras Bintik 74<br />
Yu-tukul Palang 134<br />
Yu-tukul Sanggul 136<br />
Yu Bengkong 136<br />
Yu Bintik Putih 80<br />
Yu Bodoh 48, 50, 52, 54, 56, 72<br />
Yu Borneo 92<br />
Yu Buncit 70<br />
Yu Buntal 70<br />
Yu Cicak 58, 68<br />
Yu Ekor Hitam 90<br />
Yu Ekor Panjang 62<br />
Yu Gergaji 140, 142, 144<br />
Yu Gergaji Jarang 140<br />
Yu Gigi Cangkuk 78<br />
Yu Gigi Lurus 84<br />
Yu Giling 114<br />
Yu Insang Enam 36<br />
Yu Jalur Putih 88<br />
Yu Jaras 74, 76<br />
Yu Jereh 98, 102, 104, 130<br />
Yu Jerung 64, 100<br />
Yu Kebut 44, 58<br />
Yu Kembong 70<br />
Yu Kemejan 146, 154, 158<br />
Yu Kepak Hitam 102, 106, 112<br />
Yu Kia-kia 148, 150, 152, 154<br />
Yu Kulit Tebal 108<br />
Yu Mata Jauh 134, 136<br />
Yu Mata Lekuk 122<br />
Yu Minyak 38, 40<br />
Yu Misai 46<br />
Yu Muncung Keras 104<br />
Yu Muncung Minyak 128<br />
Yu Muncung Panjang 94<br />
Yu Muncung Susu 126<br />
Yu Nipah 106<br />
Yu Padi 130<br />
Yu Palang 134, 136<br />
Yu Parang 136, 138, 140, 142, 144<br />
Yu Parangan 140, 142, 144<br />
Yu Pari 42, 156<br />
Yu Pasir 50, 80, 96, 98, 104, 110, 130<br />
Yu Paus 60<br />
Yu Pendek 68<br />
Yu Punai 54<br />
Yu Putih 82<br />
Yu Rimau 58<br />
Yu Sanggul 134, 136<br />
Yu Semilang 56<br />
Yu Sirip Hitam 106<br />
Yu Sirip Lebar 120<br />
Yu Sirip Putih 132
298 S h a r k s a n d R a y s o f B o r n e o<br />
Yu Sungai 116, 118<br />
Yu Tanduk 134<br />
Yu Tenggiri 114<br />
Yu Todak 140, 142, 144<br />
Yu Tokeh 50, 54, 58, 68<br />
Yu Trihitam 102<br />
Yu Tukul 136, 138
<strong>Sharks</strong> and Rays of Borneo<br />
This full-colour field guide complements a similar book on the economically important<br />
sharks and rays of Indonesia. It is the result of a collaborative project between the<br />
governments of the United States, Malaysia, Indonesia and Australia, and funded by<br />
the National Science Foundation.<br />
The first comprehensive reference on the sharks and rays of Borneo, it contains<br />
everything you need to know about recognising and identifying the sharks, rays<br />
and chimaeras caught and marketed in Indonesia. Its user-friendly layout contains<br />
information on identifying features, size, distribution, local common names, habitat,<br />
biology and conservation status of 118 species. It is an essential reference for all<br />
shark and ray enthusiasts – including local fishers and consumers, fisheries and<br />
conservation officers and scientists.