Description: Mainly silvery with dusky green tinge dorsally on body and head (Ref. 90102). Juveniles with dark bars on body; with 5 or 6 dull blue stripes running from the back to mid-flank (Ref. 4795. Ref. 90102). Body is superficially naked; scales minute and embedded, scutes 6-11. Body very deep in juvenile becoming more elongate with growth (Ref. 90102). Profile of head and nape somewhat angular. Anal fins extremely long and filamentous in young. Supraoccipital and distal ends of predorsal bones hyperossified and enlarged distally in specimens larger than 25 cm fork length. Pectoral fins falcate, longer than head; pelvic fins elongate in young. Soft dorsal and anal fins almost equal and the anterior rays prolonged into long filaments giving the fish with disheveled appearance (Ref. 4795; in juveniles according to Ref. 90102). Spines of first dorsal fin embedded and not apparent at fork length greater than about 17 cm; first two anal spines embedded with growth; villiform teeth disappearing with growth (Ref. 90102).