- Kingdom Animalia
- Phylum Chordata
- Subphylum Vertebrata
- Infraphylum Gnathostomata
- Parvphylum Osteichthyes
- Gigaclass Actinopterygii
- Class Actinopteri
- Subclass Teleostei
- Order Acanthuriformes
- Family Acanthuridae
Species:
(Whitemargin Unicornfish)
(Humpback Unicornfish)
(Paletail Unicornfish)
(Bluetail Unicornfish)
(Gray Unicornfish)
(Elegant Unicornfish)
(Sleek Unicornfish)
(Orangespine Unicornfish)
(Slender Unicornfish)
(Blackspine Unicornfish)
(Barred Unicornfish)
(Humpnose Unicornfish)
(Bluespine Unicornfish)
(Bignose Unicornfish)