Actinopterygii (ray-finned fishes) > Anguilliformes
(Eels and morays) > Muraenidae
(Moray eels) > Muraeninae
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335). More on author: Bleeker.
Environment / Climate / Range
Marine; reef-associated; depth range 1 - 45 m (Ref. 11441), usually ? - 5 m. Tropical
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 50.5 cm TL male/unsexed; (Ref. 2334)
soft rays: 0;
Vertebrae: 121 - 133. Body light brown, with dendritic pattern. Corner of mouth with a dark brown spot, preceded on lower lip by a large white blotch (often followed by another above and behind corner of mouth); upper and lower jaw pores usually in prominent white spots. Vertebrae 121-133.
Indo-Pacific: South Africa and Oman to the Hawaiian and Society islands, north to the Ryukyu and Ogasawara islands, south to northern Australia and the Loyalty Islands.
Occurs in shallow coastal reef flats, usually found in less than 5 m water depth, but ranges to deep water rubble reefs (Ref. 48635). Benthic (Ref. 58302).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Chen, H.-M., K.-T. Shao and C.T. Chen, 1994. A review of the muraenid eels (Family Muraenidae) from Taiwan with descriptions of twelve new records. Zool. Stud. 33(1):44-64. (Ref. 6934)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00093 (0.00045 - 0.00194), b=3.10 (2.93 - 3.27), based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.9 ±0.6 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (26 of 100) .