Description: No adipose eyelids; lower margin preorbital slightly bent, not or slightly notched, end truncate, lower and rear edge serrate, scaly (Ref. 4393). Very young with minute villiform teeth in single row in jaws; none visible in older specimens; palatines and vomer edentate, pterygoids and tongue with teeth (Ref. 4393). First dorsal fin with 4 spines, second dorsal fin with 1 spine and 8 soft rays; anal fin with 3 spines and 9 soft rays; pectoral fin with 17-18 rays; pectoral fin folded forward reaches beyond eye (Ref. 4393). Scales on lateral line 32-36; scaly process at first dorsal-fin base; 4.0-4.5 in predorsal distance; pectoral axillary scale 2.8-5.2 times in head length (Ref. 4393, 4967).

Colouration: Characterised by the brilliant blue tail (Ref. 4393). This species is greenish dorsally; flanks and abdomen are silvery; small gold patch on upper operculum and iris; caudal fin bright blue and pectoral fins yellow with dark blue spot dorsally at origin (Ref. 9812).