夏威夷蝴蝶鱼 Roa excelsa xià wēi yí hú dié yú

夏威夷蝴蝶鱼,（Hawaiian gold-barred butterflyfish），学名Roa excelsa，为辐鳍鱼纲鲈形目蝴蝶鱼科前齿蝴蝶鱼属的其中一种。栖息于礁盘区、清澈的舄湖及面海的珊瑚礁区，亦可出现于河口区。通常成对生活。主要以藻类、珊瑚虫、甲壳类及蠕虫为食。具有强烈的领域性。

百度翻译提供：

Hawaiian gold barred butterfly fish (ROA excelsa) is one of the species of the genus Phalaenopsis in the Phalaenopsis family of the order perchiformes of the class radialis. It inhabits in reefs, clear lagoons and coral reefs facing the sea. It can also appear in estuaries. Usually live in pairs. It mainly feeds on algae, coral insects, crustaceans and worms. It has a strong domain.