形态描述
体长、扁薄，背部稍平直。自腹鳍甚至肛门具腹棱。头尖。口端位，两颌前端有相嵌的突起和凹陷。无须。侧线在胸鳍上方急剧下弯。背鳍刺后缘光滑。
生物学
This fish is commonly found in the area to the south of the Changjiang River,and lives in the upper or mid-water of rivers and lakes. Body elongate and compressed, with a keel from the ventral to the anus. The body length is about 80--140mm.
国内分布
Yangtze, Mingjiang, Pearl Riv.