Dark brown, back edge of tail, dorsal and anal fins yellow. Luminous yellow to white spot at rear base of the dorsal fin.
Size : 10 cm
Habitat : Prefers protected coastal reefs and bays, 5-20 m. Usually in small groups not far from coral formations. Feeds on zooplankton in the water.
Distribution : Red Sea, Oman and East Africa to SW Japan, Solomons, Vanuatu and GBR.