Abstract
A taxonomic re-evaluation of the Carcharhinus sealei-dussumieri group using meristic and morphological data revealedthat this group consists of 5 species. Two species, Carcharhinus coatesi (Whitley, 1939) from northern Australia and prob-ably New Guinea and C. tjutjot (Bleeker, 1852) from Indonesian to Taiwan, are resurrected as valid species and togetherwith C. dussumieri and C. sealei are redescribed. Garrick’s lectotype designation of C. dussumieri and C. tjutjot areretained. A neotype for C. sealei, collected from the same locality as the holotype which was destroyed during World WarII, is designated. A fifth, possibly undescribed species (Carcharhinus sp.) is also noted from the Western Indian Oceanand its affinities briefly discussed. The four redescribed species are very similarly morphologically but can be distin-guished by a combination of meristic, morphological, dental and colour characters. The most important characters for dis-tinguishing these species are: vertebral counts, tooth counts, tooth morphology, shape of first dorsal and pectoral fins,second dorsal fin colouration, and mouth width. Two independent molecular studies have produced results which closely correlate with and support the findings of this study.References
Blainville, H. de (1816) Prodrome d'une nouvelle distribution systématique du règne animal. Bulletin de la Société Philomathique de Paris, 8, 105–112.
Bleeker, P. (1852) Bijdrage tot de kennis der Plagiostomen van den Indischen Archipel. Verhandelingen van het Bataviaasch Genootschap van Kunsten en Wetenschappen, 24, 1–92.
Bleeker, P. (1858) Twaalfde bijdrage tot de kennis der vischfauna van Borneo. Visschen van Sinkawang. Acta Societatis Regiae Scientiarum Indo-Neêrlandicae, 5, 1–10.
Blegvad, H. (1944) Danish Scientific Investigations in Iran. Part III. Fishes of the Iranian Gulf. 653 Copenhagen: Einar Munksgaard.
Compagno, L.J.V. (1979) Carcharhinoid Sharks: Morphology, Systematics and Phylogeny. Unpubl. Ph.D. thesis, Stanford University, 932 pp.
Compagno, L.J.V. (1988) Sharks of the Order Carcharhiniformes. The Blackburn Press, New Jersey, 486 pp.
Compagno, L.J.V. (2001) Sharks of the World: an annotated and illustrated catalogue of shark species known to date. Volume 2. Bullhead, mackerel and carpet sharks (Heterdontiformes, Lamniformes and Orectolobiformes). FAO, Rome, 269 pp.
Compagno, L.J.V., Dando, M. & Fowler, S. (2005) A Field Guide to the Sharks of the World. Harper Collins Publishing Ltd., London, 368 pp.
Day, F. (1873) On some new fishes of India. The Journal of the Linnean Society of London. Zoology, 11, 524–530.
Day, F. (1878) The fishes of India; being a natural history of the fishes known to inhabit the seas and fresh waters of India, Burma, and Ceylon. Part 4, 553–779.
Garrick, J.A.F (1982) Sharks of the genus Carcharhinus. NOAA (National Oceanic and Atmospheric Administration) Technical Report NMFS (National Marine Fisheries Service) Circular No. 194 pp.
Garrick, J.A.F. (1985) Additions to revision of the shark genus Carcharhinus: synonymy of Aprionodon and Hypoprion, and description of a new species of Carcharhinus (Carcharhinidae). NOAA (National Oceanic and Atmospheric Administration) Technical Report NMFS (National Marine Fisheries Service), 34, 1–26.
Gilbert, C.H. in Jordan, D.S. & Evermann, B.W. (1898) The fishes of North and Middle America: a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America north of the Isthmus of Panama. Part III. Bulletin of the United States National Museum, 47, 2183a–3136.
Günther, A. (1870) Catalogue of the fishes in the British Museum. 8, 1–549.
Holmes, B.H., Steinke, D. & Ward, R.D. (2009) Identification of shark and ray fins using DNA barcoding. Fisheries Research, 95, 280–288.
Jordan, D.S. & Evermann, B.W. (1896) The fishes of North and Middle America: a descriptive catalogue of the species of fish-like vertebrates found in the waters of North America, north of the Isthmus of Panama. Part I. Bulletin of the United States National Museum 47, 1–1240.
Last, P.R. & Stevens, J.D. (1994) Sharks and Rays of Australia. CSIRO Publishing, Hobart, 513 pp.
Last, P.R. & Stevens, J.D. (2009) Sharks and Rays of Australia – Second Edition. CSIRO Publications, Melbourne, 644 pp.
Lesueur, C.A. (1818) Description of several new species of North American fishes. Journal of the Academy of Natural Sciences, Philadelphia, 1, 222–235, 359–368.
Moore, A.B.M., McCarthy, I.D., Carvalho, G.R. & Peirce, R. (in press) Species, sex, size and male maturity composition of previously unreported elasmobranch landings in Kuwait, Qatar and Abu Dhabi Emirate. Journal of Fish Biology, in press.
Moore, A.B.M., White, W.T., Ward, R.D., Naylor, G.J.P. & Peirce, R. (2011) Rediscovery and redescription of the smoothtooth blacktip shark Carcharhinus leiodon (Carcharhinidae) from Kuwait, with notes on its ecology and conservation. Marine & Freshwater Research, 62, 528–539.
Müller, J. & Henle, F.G.J. (1839) Systematische Beschreibung der Plagiostomen. Berlin. Plagiostomen. pp. 29–102.
Nardo, G.D. (1827) Prodromus observationum et disquisitionum Adriaticae ichthyologiae. Giornale di fisica, chimica e storia naturele, medicina, ed arti. Dec. II, 10, 22–40.
Naylor, G.J.P, Caira, J.N., Jensen, K., Rosana, K.A.M., White, W.T. & Last, P.R. (in press) A DNA Sequence Based Approach to the Identification of Shark and Ray Species and its Implications for Global Elasmobranch Diversity and Parasitology. Bulletin of the American Museum of Natural History, in press.
Pietschmann, V. (1913) Fische des Wiesbadener Museums. Jahrbücher des Nassauischen Vereins für Naturkunde. Wiesbaden, 66, 170–201.
Poey, F. (1860–1861) Memorias sobra la historia natural de la Isla de Cuba, acompañadas de sumarios Latinos y extractos en Francés. Tomo 2. La Habana. 1860, 97–336; 1861, 337–442.
Poey, F. (1868) Synopsis piscium cubensium. Catalogo Razonado de los peces de la isla de Cuba. Repertorio Fisico-Natural de la Isla de Cuba, 2, 279–484.
Poey, F. (1876) Enumeratio piscium cubensium (Parte III). Anales de la Sociedad Española de Historia Natural, Madrid, 5, 373–404.
Quoy, J.R.C. & Gaimard, J.P. (1824) Description des Poissons. Chapter IX. In: L. de Freycinet. Voyage autour du Monde...exécuté sur les corvettes de L. M. "L'Uranie" et "La Physicienne," pendant les années 1817, 1818, 1819 et 1820. Paris. Description des Poissons. Chapter IX. 1–328.
Ranzani, C. (1839) De novis speciebus piscium. Dissertatio prima. Novi Commentarii Academiae Scientiarum Instituti Bononiensis, 4, 65–83.
Reylea, K. (1981) Inshore Fishes of the Arabian Gulf. Allen & Unwin, London & Boston, 149 pp.
Rüppell, W.P.E.S. (1837) Neue Wirbelthiere zu der Fauna von Abyssinien gehörig. Fische des Rothen Meeres. Frankfurt-am-Main. 53–80.
Salini, J., Blaber, S.J.M. & Brewer, D.T. (1992) Diets of sharks from estuaries and adjacent waters of the north-eastern Gulf of Carpentaria, Australia. Australian Journal of Marine and Freshwater Research, 43, 87–96.
Seale, A. (1910) Fishes of Borneo, with descriptions of four new species. The Philippine Journal of Science, 5, 263–289.
Simpfendorfer, C.A. & Milward, N.E. (1993) Utilisation of a tropical bay as a nursery area by sharks of the families Carcharhinidae and Sphyrnidae. Environmental Biology of Fishes, 37, 337–345.
Snodgrass, R.E. & Heller, E. (1905) Papers from the Hopkins-Stanford Galapagos Expedition, 1898-1899. XVII. Shore fishes of the Revillagigedo, Clipperton, Cocos and Galapagos Islands. Proceedings of the Washington Academy of Science, 6, 333–427.
Springer, S. (1950) A revision of North American sharks allied to the genus Carcharhinus. American Museum Novitates, 1451, 1–13.
Springer, V.G. & Garrick, J.A.F. (1964) A survey of vertebral numbers in sharks. Proceedings of the United States National Museum, 116, 73–96.
Stevens, J.D. & McLoughlin, K.J. (1991) Distribution, size and sex composition, reproductive biology and diet of sharks from northern Australia. Australian Journal of Marine and Freshwater Research, 42, 151–199.
Teshima, K. & Mizue, K. (1973) Studies on sharks. I. Reproduction in the female sumitsuki shark Carcharhinus dussumieri. Marine Biology, 14, 222–231.
Voigt, M. & Weber, D. (2011) Field guide for sharks of the genus Carcharhinus. Verlag Dr. Friedrich Pfeil, München, Germany, p. 151.
Ward, R.D., Holmes, B.H., White, W.T. & Last, P.R. (2008) DNA barcoding Australasian chondrichthyans: results and potential uses in conservation. Marine and Freshwater Research, 59, 57–71.
White, W.T. (2007) Catch composition and reproductive biology of whaler sharks (Carcharhiniformes: Carcharhinidae) caught by fisheries in Indonesia. Journal of Fish Biology, 71, 1512–1540.
White, W.T., Last, P.R. & Lim, A.P.K. (2010a) Rediscovery of the rare and endangered Borneo Shark Carcharhinus borneensis (Bleeker, 1858) (Carcharhiniformes: Carcharhinidae), pp. 17–28. In: P.R. Last, W.T. White, J.J. Pogonoski (eds) Descriptions of New Sharks and Rays from Borneo. CSIRO Marine and Atmospheric Research Paper 032, 165 pp.
White, W.T., Last, P.R. & Naylor, G.J.P. (2010b) Scoliodon macrorhynchos (Bleeker, 1852), a second species of spadenose shark from the Western Pacific (Carcharhiniformes: Carcharhinidae), pp. 61–76. In: P.R. Last, W.T. White, J.J. Pogonoski (eds) Descriptions of New Sharks and Rays from Borneo. CSIRO Marine and Atmospheric Research Paper 032, 165 pp.
White, W.T., Last, P.R., Naylor, G.J.P. & Harris, M. (2010c) Resurrection and redescription of the Borneo Broadfin Shark Lamiopsis tephrodes (Fowler, 1905) (Carcharhiniformes: Carcharhinidae), pp. 45–59. In: P.R. Last, W.T. White, J.J. Pogonoski (eds) Descriptions of New Sharks and Rays from Borneo. CSIRO Marine and Atmospheric Research Paper 032, 165 pp.
White, W.T. & Sommerville, E. (2010) Elasmobranchs of tropical marine ecosystems, pp 159–240. In: J.C. Carrier, M.R. Heithaus and J.A. Musick (eds). Sharks and Their Relatives II: Biodiversity, Adaptive Physiology, and Conservation, CRC Press, Boca Raton.
Whitley, G.P. (1934) Notes on some Australian sharks. Memoirs of the Queensland Museum, 10, 180–200.
Whitley, G.P. (1939) Taxonomic notes on sharks and rays. Australian Zoologist, 9, 227–262.
Whitley, G.P. (1943) Ichthyological descriptions and notes. Proceedings of the Linnean Society of New South Wales, 68, 114–144.
Whitley, G.P. (1945) New sharks and fishes from Western Australia. Part 2. Australian Zoologist, 11, 1–42.
Whitley, G.P. (1950) A new shark from north-western Australia. Western Australian Naturalist, 2, 100–105.
Yano, K., Ahmad, A., Gambang, A.C., Idris, A.H., Solahuddin, A.R. & Aznan, Z. (2005) Sharks and Rays of Malaysia and Brunei Darussalam. SEAFDEC, MFRDMD, 557 pp.