HomeFish encyclopediaRay-finned fishesCatfishEeltail catfishesLong-tailed catfish Long-tailed catfish (Euristhmus lepturus) Scientific name: Euristhmus lepturus G?nther, 1864 The Long-tailed catfish (Euristhmus lepturus) is a brackish-water fish of the family Plotosidae. Native range: Indo-West Pacific, Arafura Sea, northern Australia and New Guinea. Species factsScientific nameEuristhmus lepturusFamilyPlotosidae (Eeltail catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length46.0EnvironmentMarine; brackish; demersalClimateTropicalDistributionIndo-West Pacific: Arafura Sea, northern Australia and New Guinea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026