Muraenidae

Mediterranean moray

Muraena helena

Snaking through reef cracks after midnight

• Black
• Gray
• White
• Tropical
• Globally widespread
• Marine fish
• Anguilliform
• Large
• Tropical fish

Steeped in classical Mediterranean lore, the Mediterranean moray is a robust, serpentine predator ruling rocky caverns and sublittoral reefs across the warm temperate eastern Atlantic basin. Its elongated body lacks pectoral and pelvic fins, featuring a fleshy dorsal fin that begins behind the nape and merges seamlessly with the tail and anal fins. The background coloration is a rich dark mahogany, purplish-brown, or chestnut, elaborately marbled with large, irregular creamy-white and golden rosettes, while the gill openings are set in a conspicuous black blotch. Distributed from the British Isles and Bay of Biscay south through the Mediterranean Sea and Azores to Senegal, it establishes homes within limestone caves, rock crevices, and ancient amphorae from five to one hundred meters depth. Primarily a nocturnal hunter, it rests during daylight with its sharp-toothed head protruding from dark crevices, emerging at twilight to ambush octopuses, cuttlefish, crabs, and bottom-dwelling teleosts. Celebrated in ancient Roman aquaculture, maximum recorded total length reaches one hundred and fifty centimetres.

Sources: FishBase — Mediterranean Moray, Muraena helena