波带蝴蝶鱼 bō dài hú dié yú

波带蝴蝶鱼，Chaetodon tricinctus，蝴蝶鱼科蝴蝶鱼属。本鱼栖息于较深的水域，独居或小群体出现在陡直的礁坡，肉食性，以浮游生物或小型底栖动物为食。

百度翻译提供：

Wave zone butterfly fish, Chaetodon tricinctus, belonging to the genus Phalaenopsis of Phalaenopsis family. This fish inhabits deep waters, living alone or in small groups on steep reef slopes. It is carnivorous and feeds on plankton or small benthos.