Species: Auxis thazard thazard, Frigate mackerel, Frigate tuna

Auxis thazard thazard (Lacepede, 1800)

Frigate tuna, Frigate mackerel

Body elongate, rounded; no fatty eyelid; jaw teeth slender, conical; top of tongue with 2 ridges; 2 dorsal fins widely separated; 1st dorsal X-XII spines; ~8 finlets behind 2nd dorsal fin, ~7 behind anal fin; a single-pointed, long, bony process between pelvic fins; pectoral fins short, not reaching a vertical line from anterior margin of scaleless area on back; 1 large + 2 small keels on tail base; tail fin deeply forked; 1 lateral line; a well developed corselet of scales on front of body, rear extension of corselet is narrow (1-5 scales wide under 2nd dorsal fin).