Author: (Forster, 1801)
FBname: Orangespine unicornfish
Comments: Found in areas of coral, rock, or rubble of lagoon and seaward reefs, Ref. 48637.  Benthopelagic (Ref. 58302).  Adults usually in small groups.  Juveniles in shallow rocky reefs, sometimes in small aggregations mixed with other acanthurids of similar size (Ref. 48637).  Feed mainly on leafy brown algae (<i>Sargassum</i> and <i>Dictyota</i>).  Sometimes in large aggregations (Ref. 37792).  Very seldom poisonous (Ref. 4795).  Pair-spawning has been observed.