Nash's barb (Osteochilichthys nashii), first described by Day, 1869 is a medium-sized fish. Adults typically reach 18.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.
This species is distinguished from its congeners by the following characters: body with depth at the dorsal fin origin 28.6- 29.9 % SL; snout covered with papillae; lips thin; lateral line scales 41; caudal peduncle long, its length 20.2- 21.1 % SL; the last undivided dorsal ray non - osseous, weak; Colouration: body and fins with a peculiar colour pattern where it is reddish brown along the back, silvery over the abdomen; a black band passes from the eye to the centre of the base of the caudal fin; fins whitish; anal fin with a dark band and a similar band along the middle of the third dorsal fin .Cross section: oval.
Behavioural data for Nash's barb is currently being reviewed.
Freshwater; benthopelagic. Tropical endemic to India.
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