HomeFish encyclopediaRay-finned fishesSmeltsSlickheadsNorman's smooth-head Norman's smooth-head (Mirognathus normani) Scientific name: Mirognathus normani Parr, 1951 The Norman's smooth-head (Mirognathus normani) is a marine fish of the family Alepocephalidae. Native range: Northeast Atlantic, southwest of Iceland and off northern Portugal. Western Atlantic: Uruguay to Argentina. Species factsScientific nameMirognathus normaniFamilyAlepocephalidae (Slickheads)OrderOsmeriformes (Smelts)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Depth range1500–3000 m (4921–9843 ft)EnvironmentMarine; bathypelagic; depth range 1500 - 3000 mClimateDeep-waterDistributionNortheast Atlantic: southwest of Iceland and off northern Portugal. Western Atlantic: Uruguay to Argentina.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026