HomeFreshwater aquarium fishOther freshwater fishUnicolor snake moray Unicolor snake moray (Uropterygius concolor) Scientific name: Uropterygius concolor R?ppell, 1838 The Unicolor snake moray (Uropterygius concolor) is a brackish-water fish of the family Muraenidae. Native range: Indo-Pacific, Red Sea and East Africa to the Marquesan and Society islands, north to southern Japan, south to New Caledonia; the Carolines in Micronesia. BiologyDrab brown in color, tip of tail yellow. Median fins restricted to the end of the tail.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameUropterygius concolorFamilyMuraenidae (Moray eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length50.0Depth range8 m (26 ft)EnvironmentMarine; brackish; reef-associated; depth range ? - 8 mClimateTropicalDistributionIndo-Pacific: Red Sea and East Africa to the Marquesan and Society islands, north to southern Japan, south to New Caledonia; the Carolines in Micronesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercial More other freshwater fishSouth American lungfishLepidosiren paradoxaLined soleAchirus lineatusPumpkinseedLepomis gibbosusShort-tailed pipefishMicrophis brachyurus brachyurusFinescale tigerfishDatnioides microlepisFreshwater garfishXenentodon cancilaSee all other freshwater fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026