The redtail barb (Enteromius gurneyi) is a species of cyprinid fish endemic to KwaZulu Natal in South Africa. It is found at altitudes of , particularly in clear streams over sandstones. Skelton, P.H., 1993. A complete guide to the freshwater fishes of southern Africa. Southern Book Publishers. 388 p.
Size This species reaches a length of .
Etymology The fish is named in honor of John Henry Gurney (1819–1890), an English banker and amateur ornithologist, through whose help Günther received numerous specimens from Port Natal Durban, South Africa.
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