HomeFish encyclopediaRay-finned fishesEels and MoraysConger and garden eelsSlope conger Slope conger (Ariosoma prorigerum) Scientific name: Ariosoma prorigerum Gilbert, 1891 The Slope conger (Ariosoma prorigerum) is a marine fish of the family Congridae. Native range: Eastern Pacific, Costa Rica, Panama and Ecuador. Species factsScientific nameAriosoma prorigerumFamilyCongridae (Conger and garden eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length35.0Depth range380–740 m (1247–2428 ft)EnvironmentMarine; bathydemersal; depth range 380 - 740 mClimateDeep-waterDistributionEastern Pacific: Costa Rica, Panama and Ecuador.Conservation status (IUCN)Least Concern (LC)Threat 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