HomeMarine aquarium fishEels, lionfish & predatorsGoldentail moray Goldentail moray (Gymnothorax miliaris) Scientific name: Gymnothorax miliaris Kaup, 1856 The Goldentail moray (Gymnothorax miliaris) is a marine fish of the family Muraenidae. BiologyDark brown with numerous yellow dots, smallest on head and largest toward end of tail where they are irregular and confluent. Stout moray with a short blunt snout. Tip of tail always pale, usually deep yellow in life. Posterior nostril in short tube.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGymnothorax miliarisFamilyMuraenidae (Moray eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length70.0Common length40.0Depth range0–60 m (0–197 ft)EnvironmentMarine; reef-associated; depth range 0 - 60 m, usually 0 - 35 mClimateSubtropicalDistributionWestern Atlantic: Bermuda and southern Florida, USA to the Antilles and southeast Brazil. Eastern Atlantic: St. Paul's Rocks, Cape Verde, Ascension and St. Helena islands. Also mid-Atlantic islands.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; aquarium: commercial More eels, lionfish & predatorsRed lionfishPterois volitansBroadbanded morayChannomuraena vittataYellow morayGymnothorax prasinusMediterranean morayMuraena helenaChain morayEchidna catenataCalifornia morayGymnothorax mordaxSee all eels, lionfish & predators SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026