Acanthuriformes is a large, diverse order of mostly marine ray-finned fishes, part of the Percomorpha clade. In the past, members of this clade were placed in the suborders Acanthuroidea and Percoidea

Zanclidae is a family of marine ray-finned fishes belonging to the suborder Acanthuroidei within the order Acanthuriformes. It contains one extant species, the Moorish idol and a number of extinct spe