Description: Color blue or greenish blue on back, sides silvery; mouth large; teeth prominent, sharp, and compressed; dorsal and anal fins nearly the same size; scales small; lateral line almost straight. Similar Fish: blue runner, C. crysos.

Where found: Young usually inshore spring and summer, moving OFFSHORE to join adults fall and winter; strong migration of northeast Atlantic stock to Florida east coast in winter.

Size: Most west coast catches under 3 pounds, much larger on east coast.

Remarks: Travels in large schools, following schools of baitfish; cannibalistic; all members of a given school about the same size; spawning occurs offshore in spring and summer.