澜沧江短吻鱼属鱼类

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

摘要: 短吻鱼属Sikukia隶属于鲤科ba亚科(CyprinidaeBarbinae)，分布于澜沧江-湄公河流域。已知本属鱼类有4种，仅分布于中国西南部澜沧江下游的有S.flavicaudata和S.longibarbata；S.stejneger只见于泰国湄公河；S.gudgeri为中国和泰国共有种。长须短吻鱼，新种S.longibarbata sp.nov.主要鉴别特征为：具须2对，吻须伸达眼中央正下方，口角伸达眼眶后缘下方；鳃耙10—12；背鳍、尾鳍具黑色边缘。

Abstract: 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.