HomeFish encyclopediaRay-finned fishesGrinnersDeep-sea tripod fishesAttenuated spider fish Attenuated spider fish (Bathypterois atricolor) Scientific name: Bathypterois atricolor Alcock, 1896 The Attenuated spider fish (Bathypterois atricolor) is a marine fish of the family Ipnopidae. Native range: Circumglobal, excluding the western Atlantic. Eastern Atlantic, Liberia to Nigeria. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 13-16; Anal spines: 0; Anal soft rays: 8 - 10. Black in color.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBathypterois atricolorFamilyIpnopidae (Deep-sea tripod fishes)OrderAulopiformes (Grinners)ClassActinopterygii (Ray-finned fishes)Maximum length20.4Depth range250–5150 m (820–16896 ft)EnvironmentMarine; bathydemersal; depth range 250 - 5150 mClimateDeep-waterDistributionCircumglobal, excluding the western Atlantic. Eastern Atlantic: Liberia to Nigeria.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