Acanthuroidei

Acanthuroidei is a suborder of Perciformes, the largest order of fishes.

Acanthuroidei
Powderblue surgeonfish Acanthus leucosternon
Scientific classification
Unrecognized taxon (fix):	Acanthuroidei
Families
Acanthuridae (surgeonfishes) Ephippidae (spadefishes) Luvaridae (louvar) Scatophagidae (scats) Siganidae (rabbitfishes) Zanclidae (moorish idol)
Diversity
19 genera

Members of this suborder have a vertically-shaped body covered with small scales. The name for the suborder comes from that of the surgeonfish (Acanthuridae) family. It is got from the Greek words akantha and oura, which loosely translate as "thorn" and "tail".