形态描述
体长，侧扁。头小，锥形，吻圆钝。口下位。下唇侧瓣较厚，但中部末接触。下颌外露，无角质缘。须2对，颌须大于眼径，吻须仅及其1/2。背鳍刺发达，后缘具强锯齿。成鱼体侧无斑纹。
生物学
This species is commonly found in the upper reaches of the Changjiang River and the West River, and in the lakes in the eastern part of Yunnan province. Body elongate and compressed, lips fleshy, no noticeable horny edge to the lower jaw. A food fish, the body length is about 150-200 mm.
国内分布
金沙江及云南东部各水系