Moray eels belong to the family Muraenidae and the superclass of jawless fi sh, Agnatha. Eels are long bony fi sh with no premaxillary bones. These fi sh apprehend their prey by biting and then transport prey by extreme protraction and retraction of their pharyngeal jaw apparatus. 1 The elongated, muscular body and the lack of paired fi ns (pectoral and pelvic) allow the eel to move more easily within the narrow crevices of the reef. The dorsal, anal, and caudal fi ns are fl eshy ridges covered with thickened skin to protect the eel from abrasions. Because the eel lacks paired fi ns, they swim forward or backward in an S -shaped motion by moving their entire body side to side. These bottom dwelling creatures do not usually have scales. The moray eel is heavier and more compressed than most eel species. The absence of pectoral fi ns and presence of small round gill openings distinguish the moray eel from other marine eels. These nocturnal creatures reach up to 6 ft ( ∼ 2 m) in length. Common Name: California Moray Eel Scientifi c Name: Gymnothorax mordax Ayres Physical Description: This brown to green -brown, scaleless eel reaches up to 5 ft ( ∼ 1.5 m) in length.Like other moray eels, this eel has a large mouth, strong teeth, small, round gill openings, and an elongated face with a broad head.