圆口铜鱼——为鲤科鱼句亚科鱼类。其体长,呈棒状,头后背则显著隆起,头小较宽,上下稍扁平。口下位较宽呈半圆形。吻钝圆而突出。有颌须一对,末端可触及腮盖后缘。背鳍无硬刺,位于背部的最高处。胸鳍发达尾鳍叉形。因该鱼体侧具有鲜明的黄铜色金属光泽,从而得俗名“铜鱼”、“麻 Round mouth copperfish - for Cyprinidae subfamily fish. Its body length, was rod-shaped, head back significantly salient, the first small, slightly up and down flat. Lower mouth was a semicircle wide. Kiss blunt and prominent. Have a pair of jaws, the end can reach the kyphosis trailing edge. Dorsal fin without thorns, located on the back of the highest point. Pectoral fin caudal fin forked. Because of the side of the fish has a distinctive brass metallic luster, resulting in the common name “copper fish”, "hemp