Caribbean Reef Shark Identification Guide

Key identification features

• Robust, heavy-bodied shark typically 6-9 feet long with a thick midsection
• Short, broad, and distinctly rounded snout
• Moderately tall, slightly curved first dorsal fin
• Gray to gray-brown dorsal coloration with faint dusky, not solid black, tips on the lower caudal and pectoral fins
• Small eyes relative to head size and a white underside

Common look-alikes

• Dusky shark: overall similar coloration but has a more slender build and a longer, less blunt snout
• Silky shark: more slender and streamlined with notably longer pectoral fins and a smoother-looking skin texture
• Galapagos shark: very similar in shape but tends to grow larger with a slightly taller first dorsal fin, best separated by range

Where you'll see one

Caribbean Reef Sharks are the most commonly encountered large shark on coral reefs throughout the Caribbean Sea, Bahamas, and western Atlantic, frequently seen patrolling drop-offs and reef walls or resting motionless on the sand.

Their stocky build and habit of resting still on the bottom, a behavior less common in similar-looking requiem sharks, is often a useful behavioral clue alongside their blunt snout.