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Abstract
A new Erethistid catfish species, Hara koladynensis is described from Koladyne River, Mizoram, India. It is distinguished from its congeners in having rough (vs. smooth or serrated) anterior margin of dorsal spine; shorter pre-anal length (58.5-60.9% SL vs. 63.2-75.2), longer head (36.0-38.3% SL vs. 24.8-34.2%), longer post-adipose distance (18.6-21.9% SL vs. 12.3-18.3), and deeper body (21.9-25.2% SL vs. 11.5-20.9).