HomeFish encyclopediaRay-finned fishesCusk eelsCusk-eelsCavernous assfish Cavernous assfish (Porogadus gracilis) Scientific name: Porogadus gracilis G?nther, 1878 The Cavernous assfish (Porogadus gracilis) is a marine fish of the family Ophidiidae. Native range: Western Central Pacific, Papua New Guinea. BiologyRare species, known from a depth of 2.560 m. Reproductive strategy possibly similar to other members of this family featuring oviparity, with oval pelagic eggs floating in a gelatinous mass.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePorogadus gracilisFamilyOphidiidae (Cusk-eels)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Depth range2560 m (8399 ft)EnvironmentMarine; bathydemersal; depth range 2560 - 2560 mClimateDeep-waterDistributionWestern Central Pacific: Papua New Guinea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceHigh, minimum population doubling time less than 15 months (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