HomeFish encyclopediaRay-finned fishesCatfishEeltail catfishesGray eel-catfish Gray eel-catfish (Plotosus canius) Scientific name: Plotosus canius Hamilton, 1822 The Gray eel-catfish (Plotosus canius) is a freshwater fish of the family Plotosidae. BiologyA plain dusky-brown species with a black dorsal fin tip. Shows banded pattern at night. Distinguished from adult Plotosus lineatus by its long barbels on the nostrils that can reach pass the eyes.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePlotosus caniusFamilyPlotosidae (Eeltail catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length150Common length80.0EnvironmentMarine; freshwater; brackish; demersal; amphidromousClimateTropicalDistributionIndo-West Pacific: west and south coasts of India and off Sri Lanka eastward along the coasts of Bangladesh and Myanmar, through the Indo-Australian Archipelago and the Philippines as far as Papua New Guinea.Conservation status (IUCN)Not EvaluatedThreat to humansVenomousUsesFisheries: commercialResilienceVery Low, minimum population doubling time more than 14 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