Teleostei (teleosts) >
Anguilliformes (Eels and morays) >
Muraenidae (Moray eels) > Muraeninae
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335); vietnamensis: Named for the country of its type locality, Vietnam.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; benthopelagic. Tropical
Western Pacific: Vietnam.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 49.2 cm TL (female)
Short description
Identification keys | Morphology | Morphometrics
Vertebrae: 191 - 194. This species of the Gymnothorax prolatus group is distinguished by the following characters: vertebrae in predorsal 6-7, preanal 83-91, total 191-194, preanal length 48.2-51.8% TL, maxillary teeth are biserial anteriorly and uniserial posteriorly, intermaxillary teeth uniserial (Ref. 129614).
Cross section: oval.
Collected by bottom trawl with shallow demersal fishes, suggesting that the species lives at less
than 100 meters (Ref. 129614).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Smith, D.G., Y. Hibino and H.-C. Ho, 2018. Two new elongate unpatterned moray eels from Taiwan and Vietnam, with notes on two congeners (Anguilliformes: Muraenidae). Zootaxa 4454(1):33-42. (Ref. 129614)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fisheries: of potential interest
Tools
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00048 (0.00025 - 0.00091), b=3.28 (3.12 - 3.44), in cm total length, 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.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (39 of 100).
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