Body deep, robust, streamlined; head blunt; dorsal fin long-based, front portion very low, spinous; tail base with a small, distinct keel on each side; pectoral fin long, falcate, often reaching forked tail. Silvery-blue above, paler below with large black blotch reaching upward from the base of each pectoral fin. To 90 cm.
Juveniles (to length of about 35 cm) form large schools inshore to feed on plankton near the surface. Adults occur in deeper offshore waters.
Usually in open water areas in bays and along the coast, in depths of 3-550 m.
Native to Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed