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All Journal Biodiversitas Journal of Biological Diversity
Mathews Plamoottil
Department of Zoology, Government College. Kottayam, Kerala 686013, India
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Heteropneustes fuscus (Siluriformes: Heteropneustidae), a new catfish species from Kerala, India: NIL Mathews Plamoottil
Biodiversitas Journal of Biological Diversity Vol. 23 No. 1 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230112

Abstract

Abstract. Plamoottil M. 2021. Heteropneustes fuscus (Siluriformes: Heteropneustidae), a new catfish species from Kerala, India. Biodiversitas 22: 87-98. Heteropneustes fuscus, a new catfish species, is described from Kerala, India; it is a close congener of Heteropneustes fossilis (Bloch, 1794) described from Tranquebar in Tamil Nadu. Heteropneustes fuscus has been misidentified as H. fossilis until now, but it differs from Bloch's species in color and many other rigid taxonomic variables. The new species can be distinguished from its relative species in the following combination of characters: deep black body and fins, 4-5 branched dorsal-fin soft rays, 72-75 anal fin rays, 58-60 total vertebrae, 26-32 total gill rakers; deeper and wider body; deeper caudal peduncle; greater pre occipital and post occipital distances and longer anal fin. The new fish is edible and found in freshwater rivers, streams, ponds and paddy fields in Kerala. It is also cultivated in some artificial impoundments. Heteropneustes fuscus is compared with its congeners, scientifically named and taxonomically described.
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