Body slender, cylindrical. Dorsal fin single, anterior to middle of body. Adipose fin present; photophore absent. Lateral line present, scales not enlarged. Pelvic fin rays 8, the inner ray much longer than outer ray. Anal fin origin about midway between base of caudal fin and pectoral fin, closer to origin of pelvic fin than to base of caudal fin; base more than 23% of SL, rays 14〜16. Palatine teeth in a single pair of bands. Upper flanks with several greenish blue and yellow longitudinal bands. A black patch on scapular.
Distribution:
A monotypic genus widely distributed from all warm seas in the world. (Uyeno and Aizawa)