HomeFish encyclopediaRay-finned fishesSmeltsSlickheadsMichael Sars smooth-head Michael Sars smooth-head (Bathytroctes michaelsarsi) Scientific name: Bathytroctes michaelsarsi Koefoed, 1927 The Michael Sars smooth-head (Bathytroctes michaelsarsi) is a marine fish of the family Alepocephalidae. Native range: Eastern Atlantic, southwest of Ireland and off Portugal; Cameroon south to Angola. Also known from the Northwest Atlantic. Species factsScientific nameBathytroctes michaelsarsiFamilyAlepocephalidae (Slickheads)OrderOsmeriformes (Smelts)ClassActinopterygii (Ray-finned fishes)Maximum length37.0Depth range2010–5057 m (6594–16591 ft)EnvironmentMarine; bathypelagic; depth range 2010 - 5057 mClimateDeep-waterDistributionEastern Atlantic: southwest of Ireland and off Portugal; Cameroon south to Angola. Also known from the Northwest Atlantic.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026