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BiologyFound solitary or in groups (Ref. 90102) in shallow exposed reef flats, usually with rock-base and mixed coral and algae (Ref. 48636, 58302). Also occurs in surge-swept reef flats, reef margins, and clear rocky shorelines, but may venture to deeper waters up to 10 m (Ref. 3921). Benthopelagic (Ref. 58302). Feeds on crustaceans (especially crabs), mollusks, and ophiuroids (brittle stars) (Ref. 3921).