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 35 - 150 m (Ref. 12958), usually - m (Ref. ). Subtropical; 0°C -
Northwest Pacific: Taiwan, including the Pescadore Islands (=Penghu).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 88.2 cm TL male/unsexed; (Ref. 121652); max. published weight: 796.80 g (Ref. 121652)
Dorsal fin moderately high. Anus in front of mid-body point. Body and fins darkish brown, with numerous snowflake-like patches. Skin of pericranium area with many small whitish spots. Corner of mouth blackish. Anal fin margin white, while edge of the dorsal and caudal fins are dark.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Chen, H.-M., K.-T. Shao and C.-T. Chen, 1996. A new moray eel, Gymnothorax niphostigmus, (Anguilliformes: Muraenidae) from northern and eastern Taiwan. Zool. Studies 35(1):20-24. (Ref. 12958)
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
): 17.7 - 23.7, mean 21.8 °C (based on 59 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00052 (0.00033 - 0.00083), b=3.24 (3.11 - 3.37), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.1 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High vulnerability (59 of 100) .