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Actinopterygii (ray-finned fishes) > Anguilliformes (Eels and morays) > Muraenidae (Moray eels) > Muraeninae
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335).

Environment / Climate / Range Ecology

Marine; demersal; depth range 1 - 40 m (Ref. 35581). Subtropical, preferred ?; 34°N - 2°S, 121°W - 90°W (Ref. 96339)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Pacific: Point Conception in California, USA to southern Baja California in Mexico. Also known from the Galapagos Islands (Ref. 35581).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 152 cm TL male/unsexed; (Ref. 2850); max. reported age: 30 years (Ref. 56049)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Anal spines: 0; Vertebrae: 146 - 154

Found common among rocks; lives in crevices or holes, usually with only head protruding. Very common in shallow reef areas (Ref. 35581). Feed mostly at night on crustaceans, octopuses and small fishes. Long-lived. Pelagic spawners (Ref. 56049).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous. Pelagic spawner (Ref. 56049).

Main reference Upload your references | References | Coordinator | Collaborators

Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)

IUCN Red List Status (Ref. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Traumatogenic (Ref. 4690)

Human uses

Fisheries: subsistence fisheries; aquarium: public aquariums

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Gymnothorax mordax (Ayres, 1859)