HomeFish encyclopediaHagfishesHagfishesHagfishesFivegill hagfish Fivegill hagfish (Eptatretus profundus) Scientific name: Eptatretus profundus Barnard, 1923 The Fivegill hagfish (Eptatretus profundus) is a marine fish of the family Myxinidae. Native range: Southeast Atlantic, known only from the holotype taken off Cape Point, South Africa. Species factsScientific nameEptatretus profundusFamilyMyxinidae (Hagfishes)OrderMyxiniformes (Hagfishes)ClassMyxini (Hagfishes)Maximum length62.0Depth range732 m (2402 ft)EnvironmentMarine; bathydemersal; non-migratory; depth range ? - 732 mClimateDeep-waterDistributionSoutheast Atlantic: known only from the holotype taken off Cape Point, South Africa.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (Fec assumed to be SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026