Home > Fishes > Surgeonfishes > Acanthurus olivaceus

Updated 6/28/2016

Family Acanthuridae


Acanthurus olivaceus

Juvenile, Kaena Point, Oahu, 30 feet


Juvenile, Waimea Bay, Oahu, 30 feet

Subadult, Kahe Point, Oahu, 30 feet


Hanauma Bay, Oahu, 35 feet


Molokini Crater, Maui, 45 feet


Red Hill, Hawaii, 50 feet

Juveniles, Ho'okena, Hawaii, 30 feet


Night, Mahi wreck, Oahu, 80 feet

Juveniles, Ka'upulehu, Hawaii, 10 feet


Juvenile, Waimea Bay, Oahu, 25 feet

Subadult, Ni'ihau Arches, Ni'ihau, 60 feet

 ORANGEBAR SURGEONFISH     na'ena'e     Montsuki-hagi

Common in small groups on shallow sandy reefs where it feeds upon algal film growing on sand grains.  Body changes at will from two-toned to nearly black.  Juveniles are mustard yellow, gradually developing an orange bar.  Attains 14 inches.  Western Australia to Japan, Hawai'i, and the Tuamotus.