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Erethistoides sicula, a new catfish (Teleostei: Erethistidae) from India

Heok H. Ng

Abstract


A new species of erethistid catfish, Erethistoides sicula, is described from the Brahmaputra River drainage in northeast India. Erethistoides sicula differs from both E. montana and E. pipri in having a longer caudal peduncle (19.6–22.3% SL vs. 14.4–18.4) and shorter pectoral spine (14.6–28.0% SL vs. 30.7–32.1). It further differs from E. montana in having a dorsally projecting bony splint on the opercle immediately posterior to its articular facet with the hyomandibula (vs. splint absent) and from E. pipri in having a more slender head (13.4–15.1% SL vs. 16.4). The diagnostic characters of Erethistoides are discussed and four new synapomorphies are proposed to diagnose the genus.

Keywords


Pisces, Erethistoides; Erethistidae; Nepal; Ganges River drainage; South Asia

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DOI: http://dx.doi.org/10.11646/zootaxa.1021.1.1

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ISSN 1175-5326 (Print Edition) & ISSN 1175-5334 (Online Edition)
Published by Magnolia Press, Auckland, New Zealand