-Animals (Kingdom Animalia)

-Chordates (Phylum Chordata)

-Vertebrates (Subphylum Vertebrata)

-Ray-finned Fishes (Class Actinopterygii)

-Butterflyfishes, Angelfishes, and Allies (Order Acanthuriformes)

-Surgeonfishes, Tangs, and Unicornfishes (Family Acanthuridae)

-Genus Acanthurus

-Yellowfin Surgeonfish (Acanthurus xanthopterus)

Inhabits coral reefs, inshore grassy or rocky areas. Forms small groups. Juveniles inhabit shallow, protected, turbid inshore waters while adults prefer deeper areas of protected bays and lagoons. Feeds on diatoms, detritus film of sand, filamentous algae, hydroids, and small fish.