Marine fish with regularly ossified skeleton. Elongated body, fairly compressed. Head large. Maxilla large, wide, not covered by lachrymal. Adipose eyelid well developed. Dorsal accessory lateral line terminating below eighth spine to soft dorsal ray . Colour no distinctive markings except for a small, black opercular spot on edge near upper angle. Upper part of body and top of head dusky to nearly black or grey to bluish green; lower two thirds of body and head usually paler, whitish to silvery; caudal fin yellowish. Size: reaches 60 cm.