HomeFish encyclopediaHagfishesHagfishesHagfishesGuadalupe hagfish Guadalupe hagfish (Eptatretus fritzi) Scientific name: Eptatretus fritzi Wisner & McMillan, 1990 The Guadalupe hagfish (Eptatretus fritzi) is a marine fish of the family Myxinidae. Native range: Eastern Pacific, Guadalupe Island, Mexico. Species factsScientific nameEptatretus fritziFamilyMyxinidae (Hagfishes)OrderMyxiniformes (Hagfishes)ClassMyxini (Hagfishes)Maximum length59.2Depth range18–2743 m (59–8999 ft)EnvironmentMarine; demersal; non-migratory; depth range 18 - 2743 mClimateDeep-waterDistributionEastern Pacific: Guadalupe Island, Mexico.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