Seriola lalandi Valenciennes in Cuvier & Valenciennes, 1833
Elongate, fusiform, compressed; upper and lower body profiles similar; snout long, pointed; mouth ends under front edge of pupil; supramaxilla bone above top jawbone narrow; gill rakers (excluding rudiments) 19-22; dorsal fin with VII-VIII spines (front spines may be imbedded in very large fish), then a notch before I, 30-35; anal fin II isolated spines (reduced or embedded in large fish) + I, 19-22, its base much shorter than soft dorsal base; pectoral short (< head length); no isolated finlets after dorsal and anal fins; tail base with slight fleshy keel on each side and with dorsal and ventral grooves; lateral line with slight arch over pectoral region; no scutes (hard spiny scales) on lateral line.
Blue on upper back, sides and belly silvery to white; a narrow bronze stripe along middle of body, becoming yellow posteriorly; most fins including tail yellowish. Juvenile: with numerous narrow dark bars (a little wider than pale interspaces) that do not extend onto dorsal and anal fins.
Maximum size to at least 250 cm and 52 Kg.
Mainly pelagic; forms large offshore schools.
Depth: 0-300 m.
Circumglobal in temperate and subtropical waters; in our area from central Mexico northwards, and from Costa Rica south of Peru, plus the Revillagigedos, Galapagos and Malpelo.