6146 Dawkinsia srilankensis (Senanayake, 1985) Cyprinidae Minnows or carps Smiliogastrinae Cypriniformes Teleostei Blotched filamented barb Asia: restricted to the eastern slopes of the Knuckles Hills in the Kalu River at Pallegama, Sri Lanka at elevations of 300-500 m. Very rare and the only known existing population is in imminent danger of extinction due to the siltation of the Kalu caused by gem mining upstream.