细鳞多板盾尾鱼 Prionurus microlepidotus xì lín duō bǎn dùn wěi yú

细鳞多板盾尾鱼，学名：Prionurus microlepidotus，产于以热带海域为中心，温带海域亦有分布。主食石灰藻类。生活在沿岸岩礁区域。体扁平，椭圆形。体色灰白，岁随成长变银白色。口小。背鳍第1根棘特短。尾柄上通常有4块黑斑，骨质突起。成年鱼体长40厘米。

百度翻译提供：

Fine scale multi plate shield tail fish, scientific name: prionurus microlepidotus, produced in tropical waters as the center, and also distributed in temperate waters. Staple lime algae. Living in coastal reef areas. The body is flat and oval. The body color is gray and turns silver white with age. Small mouth. The first spine of dorsal fin is very short. There are usually 4 black spots and bony protrusions on the caudal stalk. The adult fish is 40 cm long.