Biology

Occurs in seaward reefs. Usually over rocky or coral substrates, at boulder-strewn slopes at the base of high-island cliffs where it may occur in large schools. Large adult usually on upper parts of deep slopes, but seen to about 35 m depth (Ref. 48636). Benthopelagic (Ref. 58302). Feeds on benthic algae (Ref. 30573). A protogynous hermaphrodite (Ref. 55367). An uncommon species (Ref. 9338).