Moray eels are large cosmopolitan eels of the family Muraenidae. There are approximately 200 species in 15 genera. The typical length of a moray is 1.5 m (5 ft), with the largest being the slender giant moray, Strophidon sathete, at up to 4 m (13 ft).Anatomy helena showing typical moray eel morphology: robust anguilliform shape, lack of pectoral fins and circular gill openings.]]The dorsal fin of the moray extends from just behind the head, along the back and joins seamlessly with the c