soft rays: 18 - 22. Body elongated, moderately deep, and slightly compressed; supra-maxillary very wide; lower branch of first gill arch with 15 to 18 gill rakers in individuals greater than 20cm standard length; anterior lobe of second dorsal fin deep; caudal peduncle with dorsal and ventral fossae; lateral line forming a dermal keel on the caudal peduncle; color highly variable when fresh; back brown, olive, or blue green; flanks and belly paler; nape with a dark vertical bar and a dark line extending back from the eye in adults (Ref. 55763). Olivaceous to bluish green above, lighter below and occasionally with brassy or lavender reflections; adults with dark nuchal bar; midside of body with faint amber stripe; fins dark except for the pelvic fins which are white ventrally (Ref. 3197).