Conger Eel Identification Guide

Key identification features

• Thick, powerful, cylindrical body that is noticeably bulkier than freshwater eels, tapering to a long pointed tail
• Large eyes and a wide mouth with strong jaws lined with sharp teeth
• Dorsal fin begins just behind the pectoral fins, close to the head, unlike freshwater eels whose dorsal fin starts much farther back
• Smooth, scaleless, slimy skin, usually gray to brownish-gray on the back fading to pale gray or white on the belly
• Pectoral fins present but no pelvic fins; large individuals can exceed 2 m and considerable weight

Common look-alikes

• American and European eels: slimmer bodied with tiny embedded scales and a dorsal fin set well back from the head, versus the conger's stockier, fully scaleless build with a forward dorsal fin
• Moray eels: lack pectoral fins and often show bold color patterns, while conger eel retains pectoral fins and a plain gray tone
• Wolf eel: has a large blunt head with prominent canine-like teeth and dark ocellated spots along the body, quite different from the conger's smooth gray uniform coloring

Where you'll see one

Conger eels live along rocky coastlines, reefs, wrecks, and harbor walls in the eastern Atlantic from Scandinavia to West Africa and throughout the Mediterranean, hiding in crevices by day and foraging at night.