HomeFish encyclopediaHagfishesHagfishesHagfishesShorthead hagfish Shorthead hagfish (Eptatretus mcconnaugheyi) Scientific name: Eptatretus mcconnaugheyi Wisner & McMillan, 1990 The Shorthead hagfish (Eptatretus mcconnaugheyi) is a marine fish of the family Myxinidae. Native range: Eastern Central Pacific, off southern California and in lower Gulf of California. Species factsScientific nameEptatretus mcconnaugheyiFamilyMyxinidae (Hagfishes)OrderMyxiniformes (Hagfishes)ClassMyxini (Hagfishes)Maximum length47.0Depth range43–415 m (141–1362 ft)EnvironmentMarine; demersal; non-migratory; depth range 43 - 415 mClimateDeep-waterDistributionEastern Central Pacific: off southern California and in lower Gulf of California.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