马夫鱼 Heniochus acuminatus mǎ fū yú

马夫鱼，（学名：Heniochus acuminatus）。成鱼体甚侧扁，背缘高而隆起，略呈三角形。背鳍鳍棘11根，第四鳍棘延长呈鞭状，鳍膜亦随之延长。口小。牙细尖呈刚毛状。体侧有2条宽横黑带间杂宽阔白色肤纹。侧线完全。尾鳍近截形。身体，尾鳍及背鳍呈现亮黄。此鱼广泛分布于印度洋与太平洋，中国只产于南海，是海南岛沿海水域的常见物种。为暖水性小型珊瑚礁鱼，一般体长100毫米左右，最大可达200毫米以上。

百度翻译提供：

Groom fish (scientific name: heniochus acuminatus). The adult fish is very flat on the side, with a high and raised dorsal edge, which is slightly triangular. There are 11 dorsal fin spines, the fourth fin spines are elongated in whip shape, and the fin membrane is also elongated. Small mouth. The tooth tip is setose. There are two broad horizontal black bands on the side of the body, interspersed with wide white skin lines. The side line is completely. The caudal fin is nearly truncated. The body, caudal fin and dorsal fin are bright yellow. This fish is widely distributed in the Indian Ocean and the Pacific Ocean. China is only produced in the South China Sea. It is a common species in the coastal waters of Hainan Island. It is a warm water small coral reef fish, with a general body length of about 100 mm and a maximum length of more than 200 mm.