(Osteochilus longidorsalis)
Osteochilus longidorsalis is a species of fish in the family Cyprinidae. Its common names are hiffin carp and long finned barb. It is endemic to the Western Ghats (India) and only found in Chalakudy River and Periyar River in Kerala. It inhabits torrential streams and is often found in pool, riffles, and cascades.