NIWAELLA BREVIFASCIATA, A NEW COBITID FISH (CYPRINIFORMES, COBITIDAE)WITH A REVISED KEY TO THE SPECIES OF NIWAELLA

A new cobitid, Niwaella brevifasciata is described from 17 specimens c ollected in small streams near the southwestern coast of Korea. It is distinguishable from congeners by the following characters: lower side s of body with 13 to 19 short vertical bars; mouth with relatively lon ger barbels and well-developed mental lobes; dorsal fin origin more an terior, between 55.3% and 60.3% SL; vertebral number fewer, 43 to 45; branched anal fin rays fewer, 4. A key to species of Niwaella and a br ief discussion of the evolutionary history of the genus are included.