Home > Fishes > Surgeonfishes > Naso tonganus
Created 8/6/2019
Family Acanthuridae
INDO-WEST PACIFIC
Naso tonganus
German Channel, Palau, 15 feet
HUMPNOSE UNICORNFISH
Uncommon along reefs exposed to current where it feeds upon zooplankton. Hornless with bulbous forehead and dorsal hump, black trailing edge on caudal fin. Attains 24 inches. East Africa to Okinawa, Micronesia, and Samoa.