HomeFish encyclopediaRay-finned fishesSmeltsSlickheadsHairfin smooth-head Hairfin smooth-head (Talismania homoptera) Scientific name: Talismania homoptera Vaillant, 1888 The Hairfin smooth-head (Talismania homoptera) is a marine fish of the family Alepocephalidae. Native range: Eastern Atlantic, Morocco south to Congo. Western Central Atlantic. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 22-23; Anal spines: 0; Anal soft rays: 21 - 23. No luminous organ on shoulder or body.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTalismania homopteraFamilyAlepocephalidae (Slickheads)OrderOsmeriformes (Smelts)ClassActinopterygii (Ray-finned fishes)Maximum length29.0Depth range560–1690 m (1837–5545 ft)EnvironmentMarine; bathypelagic; depth range 560 - 1690 mClimateDeep-waterDistributionEastern Atlantic: Morocco south to Congo. Western Central Atlantic.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