HomeFish encyclopediaRay-finned fishesEels and MoraysMoray eelsMottled moray Mottled moray (Echidna delicatula) Scientific name: Echidna delicatula Kaup, 1856 The Mottled moray (Echidna delicatula) is a marine fish of the family Muraenidae. Native range: Indo-West Pacific, Sri Lanka to Samoa, northern to southern Japan. BiologyAdults occur in shallow areas among corals. A gonochoristic species.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEchidna delicatulaFamilyMuraenidae (Moray eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length65.0EnvironmentMarine; reef-associatedClimateTropicalDistributionIndo-West Pacific: Sri Lanka to Samoa, northern to southern Japan.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