HomeFish encyclopediaRay-finned fishesCusk eelsCusk-eelsAbyssal assfish Abyssal assfish (Bassozetus compressus) Scientific name: Bassozetus compressus G?nther, 1878 The Abyssal assfish (Bassozetus compressus) is a marine fish of the family Ophidiidae. Native range: Western Central Pacific, Papua New Guinea and Philippines. Atlantic Ocean. BiologySnout inflated; eyes much smaller than snout; opercular spine weak or absent; preopercle without spines and posteriorly expanded almost reaching posterior margin of opercle; pseudobranchial filaments 2.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBassozetus compressusFamilyOphidiidae (Cusk-eels)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Maximum length62.0Depth range1134–5456 m (3720–17900 ft)EnvironmentMarine; bathydemersal; depth range 1134 - 5456 mClimateDeep-waterDistributionWestern Central Pacific: Papua New Guinea and Philippines. Atlantic Ocean.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