Batasio flavus, a new catfish species (Siluriformes: Bagridae) from Kerala, India

  • Mathews Plamoottil Assistant Professor in Zoology, Baby John Memorial Government College, Chavara, Kollam Dt, Kerala
Keywords: Bagrids, New species, Manimala River, Batasio travancoria, B. sharavatiensis

Abstract

Batasio flavus, a new species of the family Bagridae, is described from Manimala River of Kerala, India. It is distinguished from its relative species by the following combination of characters: body slender, dorsal profile nearly straight; body and fins yellow; median longitudinal groove on head narrow, single and extending to base of occipital process; occipital process very short, equal to the length of orbit and never reach basal bone of dorsal fin; orbits are widely set; dorsal fin spine very weak, feebly ossified and its anterior and posterior edges smooth; considerable distance between base of last rayed dorsal fin and origin of adipose dorsal fin and the second dorsal fin with a straight margin for entire length. The new fish species is described and compared with its related species.

References

Bhatt A and Jayaram KC. 2004. A new species of the genus Batasio Blyth (Siluriformes: Bagridae) from Sharavati River, Uttara Kannada, Karnataka. Zoosprint Journal. 19(19): 1339- 1342.

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(2): 138-174.

Chaudhuri BL. 1913. Zoological results of the Abor Expedition, 1911–12. XVIII. Fish. Records of the Indian Museum. 8(3): 243-257, Pls. 7-9.

Darshan AN, Anganthoibi and Vishwanath W. 2011. Batasio convexirostrum, a new species of catfish (Teleostei: Bagridae) from Koladyne basin, India. Zootaxa. 2901: 52-58.

Day F. 1888. Supplement to the fishes of India; being a natural history of the fishes known to inhabit the seas and fresh waters of India, Burma, and Ceylon. Williams, London & Norgate, Edinburg, 779-816.

Hamilton B. 1822. An account of the fishes found in the River Ganges and its branches. Archibald Constable, Edinburgh and Hurst, Robinson, London, 405.

Hora SL and Law NC. 1941. Siluroid fishes of India, Burma and Ceylon. IX. Fishes of the genera Gagata Bleeker and Nangra Day. X. Fishes of the genus Batasio Blyth. Records of the Indian Museum. 43, 9-42.

Jayaram KC. 2002. Fundamentals of Fish Taxonomy. Narendra publishing House, Delhi.174.

Jayaram KC. 2006. Cat Fishes of India. Narendra Publishing House, Delhi. 383.

Jayaram KC. 2010. Freshwater fishes of the Indian Region. Narendra publishing House, Delhi. 256-260.

Mirza MA. and Jan MA. 1989. Batasio pakistanicus new species, a new catfish (Pisces, Bagridae) from Pakistan. Scientific Khyber. 2: 283-286.

Mo TP. 1991. Anatomy, relationships and systematics of the Bagridae (Teleostei: Siluroidei) with a hypothesis of siluroid phylogeny. Theses Zoologicae, Koeltz, Koenigstein. 216p.

Misra KS. 1976. The fauna of India and Adjacent countries. Zool. Sur. India, Kolkata. 367.

Ng HH and Kottelat M. 2001. A review of the genus Batasio in Indochina with the description of B. tigrinus from Thailand. Rev. Suisse Zool. 108(3): 495-511.

Ng HH. 2004. Batasio elongatus, a new species of bagrid catfish from southwest Myanmar (Siluriformes: Bagridae). Ichthyological Exploration of Freshwaters. 15(1): 67-70.

Ng HH and Edds DR. 2004. Batasio macronotus, a new species of bagrid catfish from Nepal (Teleostei: Bagridae). Ichthyological Exploration of Freshwaters. 15(4): 295-300.

Ng HH. 2006. The identity of Batasio tengana with description of two new species of Batasio from north eastern India. Journal of fish Biology. 68: 101-118.

Ng HH. 2008. Batasio procerus, a new species of catfish from northern Myanmar (Siluriformes: Bagridae). Ichthyological Exploration of Freshwaters. 19(1): 1-6.

Ng HH and Kottelat M. 2007. Batasio feruminatus, a new species of bagrid catfish from Myanmar (Siluriformes: Bagridae), with notes on the identity of B. affinis and B. fluviatilis. Ichthyological Exploration of Freshwaters. 18: 289-300.

Ng HH. 2009. Redescription of Batasio merianiensis, a catfish (Teleostei: Bagridae) from northeastern India, Journal of Threatened Taxa. 1(5): 253-256.

Tamang L and Sinha B. 2014. Additional record of Batasio merianiensis (Chaudhuri 1913), a catfish (Teleostei: Bagridae) in upper Brahmaputra River drainage in Arunachal Pradesh, India. Journal of Threatened Taxa. 6(5): 5738-5743.

Vinciguerra D. 1890. Viaggio di Leonardo fea in Birmania regione vicini (Pesci). Ann. Mus. Civ. Storia nat. Genoa. 9(2): 129-362.

Vishwanath W and Darshan A. 2006. A new species of the genus Batasio Blyth from Manipur, India. Zoosprint Journal. 21(2): 2160-2163.
Published
2015-08-18
How to Cite
Plamoottil, M. (2015). Batasio flavus, a new catfish species (Siluriformes: Bagridae) from Kerala, India. Journal of Research in Biology, 5(5), 1799-1808. Retrieved from https://ojs.jresearchbiology.com/ojs1/index.php/jrb/article/view/392