Acanthuriformes is a large, diverse order of mostly marine ray-finned fishes, part of the Percomorphaclade. In the past, members of this clade were placed in the suborders Acanthuroidea and Percoidea of the order Perciformes, but this treatment is now considered paraphyletic.
Family Antigoniidae Jordan & Evermann, 1898 (deepwater boarfishes)
In the past, the rovers and drums were included within the suborder Sciaenoidei within the Acanthuriformes. However, this placement causes the group to be paraphyletic. Some authors have resolved this by placing the two families included in that suborder as incertae sedis in the Eupercaria,[7] but others have resolved this by placing even more families within the order, the latter of which is followed by the Catalog of Fishes.[6]
Some authors also lump the Lophiiformes and Tetraodontiformes within this group as the suborders Lophioidei and Tetraodontoidei. However, they are presently retained as distinct orders by taxonomic authorities.[8]
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