Skip to main content Skip to main navigation menu Skip to site footer
Type: Articles
Published: 2009-09-15
Page range: 50–60
Abstract views: 71
PDF downloaded: 3

Ompok brevirictus, a new catfish (Teleostei: Siluridae) from Sumatra

Raffles Museum of Biodiversity Research, Department of Biological Sciences, National University of Singapore, 6 Science Drive 2, Singapore 117546
Division of Zoology, Research Center for Biology, Indonesian Institute of Sciences, Gedung Widyasatwaloka, Jalan Raya Jakarta km. 46, Cibinong 16911, Indonesia
Fish Ostariophysi Aceh Sumatra Southeast Asia

Abstract

Ompok brevirictus, a new species of silurid catfish is described from the short coastal rivers draining the western face of the Leuser Mountain Range and debouching into the Indian Ocean in Nangroe Aceh Darussalam province, northern Sumatra. Ompok brevirictus can be distinguished from Ompok siluroides and O. miostomus, the Southeast Asian congeners that it most resembles, in having an evenly convex predorsal profile (vs. with a concavity posterior to orbit) and a more prominent lower jaw that is more broadly curving. Ompok brevirictus additionally differs from O. siluroides in having the mouth rictus separated from the anterior orbital margin by a distance of one-third (vs. less than one-third) eye diameter (4.2–5.2% HL vs. 3.2–3.7) and lacking (vs. with) a distinct dark wedge-shaped spot on the base of the caudal fin. The identity of the Southeast Asian material usually identified as O. bimaculatus is also clarified. Ompok bimaculatus is restricted to the Indian subcontinent and Myanmar in this study; the Southeast Asian material previously identified as conspecific is hereby referred to either O. siluroides or O. miostomus.

References

  1. Bloch, M.E. (1794) Naturgeschichte der Ausländischen Fische, Vol. 8. Berlin, iv+174 pp., Pls. 361–396.

    Blyth, E. (1860) Report on some fishes received chiefly from the Sitang River and its tributary streams, Tenasserim Provinces. Journal of the Asiatic Society of Bengal, 29, 138–174.

    Bornbusch, A.H. (1995) Phylogenetic relationships within the Eurasian catfish family Siluridae (Pisces: Siluriformes), with comments on generic validities and biogeography. Zoological Journal of the Linnean Society, 115, 1–46.

    Boxer, C.R. (1965) The Dutch Seaborne Empire: 1600-1800. Alfred A. Knopf, New York, xxvi+326 pp.

    Cuvier, G. & Valenciennes, A. (1840) Histoire Naturelle des Poissons. Tome Quatorzième. Suite du Livre Seizième. Labroïdes. Livre Dix-septième. Des Malacoptérygiens. Ch. Pitois & Ve Levrault, Paris; Strasbourg, xxii+2+464+4 pp., Pls. 389–420. [Vol. dated 1839]

    Day, F. (1870) On the freshwater fishes of Burma.—Part I. Proceedings of the Zoological Society of London, 1869, 614–623.

    Day, F. (1872) On the freshwater siluroids of India and Burmah. Proceedings of the Zoological Society of London, 1871, 703–721.

    Day, F. (1877) 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 3. Quaritsch, London, 369–552, Pls. 79–138,

    Ferraris, C.J. (2007) Checklist of catfishes, recent and fossil (Osteichthyes, Siluriformes) and catalogue of siluriform primary types. Zootaxa, 1418, 1–628.

    Günther, A. (1864) Catalogue of the Fishes in the British Museum, vol. 5.–Catalogue of the Physostomi, Containing the Families Siluridae, Characinidae, Haplochitonidae, Sternoptychidae, Scopelidae, Stomiatidae in the Collection of the British Museum. Trustees, London, xxii+455 pp.

    Haig, J. (1952) Studies on the classification of the catfishes of the Oriental and Palaearctic family Siluridae. Records of the Indian Museum, 48, 59–116.

    Hamilton, F. (1822) An Account of the Fishes Found in the River Ganges and its Branches. Edinburgh & London, vii+405 pp., 39 pls.

    Heckel, J.J. (1838) Fische aus Caschmir Gesammelt und Herausgegeben von Carl Freiherrn v. Hügel, Beschrieben von Joh. Jacob Heckel. Gedrunckt bei den P. P. Mechitaristen, Wien, 112 pp., 13 pls.

    Kottelat, M. & Lim, K.K.P. (1995) Freshwater fishes of Sarawak and Brunei Darussalam: a preliminary annotated check-list. Sarawak Museum Journal, 48, 227–258.

    La Cepède, B.G.E. (1803). Histoire naturelle des poissons. Plassan, Paris, lxviii+803 pp.+index, 21 pls.

    Lim, K.K.P. & Ng, H.H. (1999) Clarias batu, a new species of catfish (Teleostei: Clariidae) from Pulau Tioman, Peninsular Malaysia. The Raffles Bulletin of Zoology Supplement, 6, 157–167.

    M’Clelland, J. (1842) On the fresh-water fishes collected by William Griffith, Esq., F. L. S. Madras Medical Service, during his travels under the orders of the Supreme Government of India, from 1835 to 1842. Calcutta Journal of Natural History, and Miscellany of the Arts and Sciences in India, 2, 560–589, Pls. 6, 15, 18, 20, 21.

    Ng, H. H. (2003) A review of the Ompok hypophthalmus group of silurid catfishes with the description of a new species from South-East Asia. Journal of Fish Biology, 62, 1296–1311.

    Ng, H. H. & Kottelat, M. (2000) A review of the genus Amblyceps (Osteichthyes: Amblycipitidae) in Indochina, with descriptions of five new species. Ichthyological Exploration of Freshwaters, 11, 335–348.

    Ng, H. H. & Kottelat, M. (2001) A review of the genus Batasio (Teleostei: Bagridae) in Indochina, with the description of B. tigrinus n. sp. from Thailand. Revue Suisse de Zoologie, 108, 495–511.

    Playfair, R.L. (1867) On the fishes of Cachar. Proceedings of the Zoological Society of London, 1867, 14–17, Pl. 3.

    Swainson, W. (1838) The Natural History and Classification of Fishes, Amphibians, & Reptiles, or Monocardian Animals, vol. 1. Longman, Orme, Brown, Green and Longmans, and John Taylor, London, vi+368 pp.

    Sykes, W.H. (1839) On the fishes of the Deccan. Proceedings of the Zoological Society of London, 1838, 157–165.

    Vaillant, L. (1902) Résultats zoologiques de l'expédition scientifique Néerlandaise au Bornéo central. Poissons. Notes from the Leyden Museum, 24, 1–166, Pls. 1–2.