Moray eel

A marine fish in the family Muraenidae, usually with an elongated, scaleless body and a second set of jaws in its throat.

Pharyngeal jaw: A second set of jaws in the throat that helps some fishes seize and move prey. Morays project these jaws forward to pull captured prey into the throat.
Eel: An elongated fish belonging to the order Anguilliformes. Morays are a distinct family within the broader group of true eels.
Reef fish: A fish that lives on or closely associated with coral reef habitats. Morays are predators within reef fish communities.
Conger eel: A marine eel in the family Congridae, often larger and more open-water ranging than many morays. Congers are true eels but lack the moray's characteristic throat-jaw feeding system.
Ram feeding: A feeding mode in which an animal advances toward prey with its mouth open. Morays often use forward lunges to seize prey hidden in crevices.
Muraenidae: The fish family comprising moray eels, with hundreds of species in marine habitats. This family is the taxonomic group that defines morays.
Trophic cascade: An ecological chain reaction in which predators indirectly affect organisms at lower trophic levels. Changes in moray abundance can alter prey populations and reef food-web relationships.
Snake eel: An eel-like fish in the family Ophichthidae, many of which burrow in sand or mud. Snake eels are another elongated marine fish, but many specialize in burrowing rather than reef crevices.
Buccal pumping: The rhythmic movement of the mouth and throat that moves water across fish gills. Morays repeatedly open and close their mouths to ventilate their gills.
Scaleless fish: A fish whose skin lacks typical overlapping scales or has them greatly reduced. Morays lack scales and instead have a protective mucus-covered skin.

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