HomeFish encyclopediaRay-finned fishesSmeltsSlickheadsEel slickhead Eel slickhead (Leptoderma affinis) Scientific name: Leptoderma affinis Alcock, 1899 The Eel slickhead (Leptoderma affinis) is a marine fish of the family Alepocephalidae. Native range: Indian Ocean. Probably occurring in the Western Central Pacific. Species factsScientific nameLeptoderma affinisFamilyAlepocephalidae (Slickheads)OrderOsmeriformes (Smelts)ClassActinopterygii (Ray-finned fishes)EnvironmentMarine; bathypelagicClimateDeep-waterDistributionIndian Ocean. Probably occurring in the Western Central Pacific.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 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