Fishes of Genus Sikukia (Teleostei,Cypriniformes,Cyprinidae) in Lancangjiang River System (Cypriniformes:Cyprinidae)

Fishes of the genus Sikukia (Cyprinidae:Barbinae) can be distinguished from other fishes of Barbinae in several characters,such as snout shorter,eyes bigger,adipose eyelid absent etc.So far three species have been recorded.We report a new species S.longibarbata in this paper,so there are totally four species now.All of them can be found in Lancangjiang river,Yunnan.