形态描述
体长，侧扁，腹鳍至肛门间有腹棱。头较宽。口大，端位。无须。下咽齿2行。侧线明显下弯，行经体侧下方。背鳍无硬刺，位于腹鳍之后；背、腹、臀鳍均小；尾鳍叉形。
生物学
The small cyprinid fish is commonly found in the Hainan Island and the south of Guangdong and Guangxi. It inhabits the mountain streams and canals. The pharyngeal teeth are in 2 rows; the body length is not longer than 100 mm.
国内分布
Hainan Island, Pearl Riv.