HomeFish encyclopediaRay-finned fishesCusk eelsViviparous brotulasBagbelly cusk Bagbelly cusk (Saccogaster tuberculata) Scientific name: Saccogaster tuberculata Chan, 1966 The Bagbelly cusk (Saccogaster tuberculata) is a marine fish of the family Bythitidae. Native range: Pacific Ocean, South China Sea, east and west coasts of Australia and Hawaii. BiologyA benthic species found on the continental slope. Rare species.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSaccogaster tuberculataFamilyBythitidae (Viviparous brotulas)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Depth range585–834 m (1919–2736 ft)EnvironmentMarine; bathydemersal; depth range 585 - 834 mClimateDeep-waterDistributionPacific Ocean: South China Sea, east and west coasts of Australia and Hawaii.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