Adult: Dark metallic black-grey with dark-edged scales. Tail base and fin are white.
Juveniles are silvery-grey to blue-silver with yellow dorsal, anal and caudal fins. Frequently encountered in front of soft coral and sea whips.
Size : 15 cm
Habitat : Prefers steep outer reefs, 3-40 m. Usually in loose groups.
Distribution : Cocos Keeling to SW Japan, Line Islands and Pitcairn.