HomeFish encyclopediaRay-finned fishesEels and MoraysMoray eelsGrey moray Grey moray (Gymnothorax nubilus) Scientific name: Gymnothorax nubilus Richardson, 1848 The Grey moray (Gymnothorax nubilus) is a marine fish of the family Muraenidae. Native range: Southwest Pacific, Lord Howe and Norfolk islands, New Zealand and the Kermadec Islands. Species factsScientific nameGymnothorax nubilusFamilyMuraenidae (Moray eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length53.5EnvironmentMarine; demersalClimateTemperateDistributionSouthwest Pacific: Lord Howe and Norfolk islands, New Zealand and the Kermadec Islands.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