Actinopteri (ray-finned fishes) > Anguilliformes
(Eels and morays) > Muraenidae
(Moray eels) > Muraeninae
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range - 45 m (Ref. 13539), usually - m (Ref. ). Subtropical; 0°C -
South Pacific: Southwest Pacific: Lord Howe I. Southeast Pacific: Rapa I., Ducie Atoll, Easter I. and Desventuradas Is.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 37.5 cm TL male/unsexed; (Ref. 13539)
Morphology | Morphometrics
A plain-colored light brown moray with a black eye ring, white blotches around the last two infraorbital pores and last three mandibular pores, and a single branchial pore.
Ranges from very shallow inshore areas or tide pools to depths of at least 45 m depth (Ref. 13539).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lavenberg, R.J., 1992. A new moray eel (Muraenidae: Gymnothorax) from oceanic islands of the South Pacific. Pac. Sci. 46(1):58-67. (Ref. 13539)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 20.6 - 29, mean 27.5 °C (based on 186 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00048 (0.00026 - 0.00087), b=3.28 (3.13 - 3.43), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.8 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (35 of 100) .