HomeFish encyclopediaRay-finned fishesEels and MoraysMoray eelsAtoll moray Atoll moray (Gymnothorax atolli) Scientific name: Gymnothorax atolli Pietschmann, 1935 The Atoll moray (Gymnothorax atolli) is a marine fish of the family Muraenidae. Native range: Eastern Central Pacific, northern Hawaiian Islands and Midway Atoll. Species factsScientific nameGymnothorax atolliFamilyMuraenidae (Moray eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length20.6Depth range8 m (26 ft)EnvironmentMarine; demersal; depth range ? - 8 mClimateSubtropicalDistributionEastern Central Pacific: northern Hawaiian Islands and Midway Atoll.Conservation status (IUCN)Not EvaluatedThreat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026