Characterized by pale grey body color with broad white midlateral stripe bordered by pair of black to brownish stripes; first dorsal fin with large black spot; truncate to slightly emarginate caudal fin, ray above and below central three rays prolonged as filament in adult; length of caudal fin 2.4-5.0 in SL; longitudinal scale series 127-146; ctenoid body scales except cycloid on abdomen; head or midline of nape without scales; in adult, cycloid scales extending forward on side of nape to above middle of operculum; base of pectoral fin and prepelvic area scaled in adult; depth of body 5.0 in SL (Ref. 90102).