Florent's Guide To The

Tropical Pacific Reefs

Humpnose Unicornfish
Naso tonganus
Humpnose Unicornfish
Category: Surgeonfishes
Scientific Name: Naso tonganus
Size: Up to 24 in. (60 cm)  
Depth: 10-60 ft. (3-18 m)
Distribution: Indo-West Pacific, Great Barrier Reef, Fiji
Chordata (Phylum)
└Osteichthyes (Parvphylum)
 └Actinopterygii (Gigaclass)
  └Actinopteri (Superclass)
   └Teleostei (Class)
    └Acanthuriformes (Order)
     └Acanthuridae (Family)
      └Naso (Genus)

All Photographs
© 2025 Florent Charpin