Black lips, yellow caudal fin with transparent back edge.
Size : 14 cm
Habitat : In rock and coral reefs, 3-60 m. Alone, in pairs or in loose groups to more than two dozen fish. Feeds on polyps of soft coral (especially Sarcophyton and Litophyton), algae, zooplankton and small bottom-dwelling invertebrates.
Distribution : East Africa and the Maldives to SW Japan, Hawaii and Samoa.