HomeFish encyclopediaHagfishesHagfishesHagfishesBlack hagfish Black hagfish (Eptatretus deani) Scientific name: Eptatretus deani Evermann & Goldsborough, 1907 The Black hagfish (Eptatretus deani) is a marine fish of the family Myxinidae. Native range: Eastern Pacific, southeastern Alaska to central Baja California, Mexico. BiologyInhabits mud bottoms. Minimum depth reported at 103 m.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEptatretus deaniFamilyMyxinidae (Hagfishes)OrderMyxiniformes (Hagfishes)ClassMyxini (Hagfishes)Maximum length52.3Depth range103–2743 m (338–8999 ft)EnvironmentMarine; bathydemersal; non-migratory; depth range 103 - 2743 mClimateDeep-waterDistributionEastern Pacific: southeastern Alaska to central Baja California, Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceLow, minimum population doubling time 4.5 - 14 years (Fec = 14) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026