HomeFish encyclopediaRay-finned fishesCusk eelsCusk-eelsPure cusk Pure cusk (Neobythites purus) Scientific name: Neobythites purus Smith & Radcliffe, 1913 The Pure cusk (Neobythites purus) is a marine fish of the family Ophidiidae. Native range: Western Central Pacific, Philippines to Indonesia. BiologyA benthic species found on the continental slope. Common species. Oviparous, with oval pelagic eggs floating in a gelatinous mass.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNeobythites purusFamilyOphidiidae (Cusk-eels)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Depth range175–700 m (574–2297 ft)EnvironmentMarine; benthopelagic; depth range 175 - 700 mClimateTropicalDistributionWestern Central Pacific: Philippines to Indonesia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, 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