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 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: of potential interest
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