Description: Dark stripe (variably present) extends from nose to in front of dorsal fin and "lights up" when fish is in feeding mode; no scutes; soft dorsal base less than twice the length of the anal fin base.

Similar fish: Other Seriola.

Where found: Offshore species associated with rocky reefs, debris, and wrecks, typically in 60-240 feet of water; sometimes caught nearshore in south Florida; juveniles associate with floating objects and may occur in water less than 30 feet deep.

Size: Common to 40 pounds.

Remarks: Largest of the jacks; thought to spawn offshore throughout much of the year; feeds on squid, fish, and crustaceans.