Habitat: Marine. Associated to coral reef and rocky habitats in shallow waters, usually between 0 and 10 ft. Natural History Notes: Territorial, herbivore and detritus feeder. Characteristics: Adults dark gray to blackish with vertical black lines following scale edges. Rounded anal fin extending to or slightly beyond the base of the caudal fin. Juveniles : reddish-orange nape with a blue-edged black spot at the edge of the dorsal fin.