HomeMarine aquarium fishOther marine fishPacific hagfish Pacific hagfish (Eptatretus stoutii) Scientific name: Eptatretus stoutii Lockington, 1878 The Pacific hagfish (Eptatretus stoutii) is a marine fish of the family Myxinidae. Native range: Eastern Pacific, southeastern Alaska to Bahia San Pablo, central Baja California, Mexico. BiologyInhabits fine silt and clay bottoms. Enters large fishes by way of the mouth and anus and feed on its viscera and muscles. May greatly diminish catches taken with fixed gears. Produces mucilaginous slime when harassed. Probably exhibits hermaphroditism. Due to its primitive metabolism it is collected for research purposes.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEptatretus stoutiiFamilyMyxinidae (Hagfishes)OrderMyxiniformes (Hagfishes)ClassMyxini (Hagfishes)Maximum length46.8Depth range16–633 m (52–2077 ft)EnvironmentMarine; demersal; non-migratory; depth range 16 - 633 mClimateTemperateDistributionEastern Pacific: southeastern Alaska to Bahia San Pablo, central Baja California, Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest; aquarium: public aquariumsResilienceLow, minimum population doubling time 4.5 - 14 years (Fec = 28) More other marine fishBroadnose sevengill sharkNotorynchus cepedianusBat eagle rayMyliobatis californicaSpotted ratfishHydrolagus collieiCommon torpedoTorpedo torpedoEuropean congerConger congerCuckoo rayLeucoraja naevusSee all other marine fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026