Occurs in the vicinity of sand or rubble patches of exposed outer reef flats, lagoon reefs, and seaward reefs (Ref. 1602), often in semi-exposed surge zones (Ref. 48636). Adults solitary. Juveniles common in shallow tide pools (Ref. 30573). Feeds mainly on hard-shelled invertebrates including crustaceans, mollusks and sea urchins (Ref. 9823). Minimum depth reported from Ref. 27115. Randall (1999, Ref. 33411) question identity of specimens exceeding 70 cm.