To about 13 ft (4 m).
- Snout conical, pointed
- Caudal fin lunate with single keel on caudal peduncle
- Color deep blue above; light metallic blue sides; snow-white below, including underside of snout and area around mouth
- Teeth long, bladelike, smooth-edged, protruding from mouth
Newfoundland, Canada, to Brazil, including Gulf of Mexico and Caribbean Sea. Common in U.S. Northeast.
Offshore from surface to at least 500 ft (152 m); generally in waters >61°F (16°C).
Porbeagle has secondary keels on caudal fin, teeth with lateral cusplets; prefers colder water. Longfin mako has larger eyes, longer pectoral fins, dusky or blue-black underside of snout and area around mouth. Blue shark lacks lunate caudal fin, caudal keels, sharply pointed snout. White shark has triangular teeth with serrated edges, blunter snout.
Text descriptions taken from:
Guide to Sharks, Tunas, & Billfishes
of the U.S. Atlantic and Gulf of Mexico