Batasio convexirostrum, a new bagrid catfish, is described from the Koladyne drainage, Mizoram, India. by A. DARSHAN, Directorate of Coldwater Fisheries Research (ICAR), Bhimtal-263 136, Uttarakhand, India with N. ANGANTHOIBI and W. VISHWANATH, Department of Life Sciences, Manipur University, Canchipur-795 003, Manipur, India.
It is distinguished from congeners by a combination of the following characters: body with a dark-brown oblique predorsal bar on a uniform light-brown background; very short dorsal to adipose distance (1.7–4.1% SL); snout length 39.2–45.5% head length; eye diameter 24.6–29.8% head length; gill rakers on the first branchial arch 4–5; pectoral spine length 14.6–17.6% standard length; adipose-fin base length 31.0–34.9% standard length; post-adipose distance 10.6–13.7% standard length; branched pectoral fin rays 9–10; and 39–40 vertebrae.
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