HomeFish encyclopediaRay-finned fishesEels and MoraysConger and garden eelsCastle's conger Castle's conger (Gnathophis castlei) Scientific name: Gnathophis castlei Karmovskaya & Paxton, 2000 The Castle's conger (Gnathophis castlei) is a marine fish of the family Congridae. Native range: Western Central Pacific, Queensland, Australia. Species factsScientific nameGnathophis castleiFamilyCongridae (Conger and garden eels)OrderAnguilliformes (Eels and Morays)ClassActinopterygii (Ray-finned fishes)Maximum length34.2Depth range131–366 m (430–1201 ft)EnvironmentMarine; bathydemersal; depth range 131 - 366 mClimateDeep-waterDistributionWestern Central Pacific: Queensland, Australia.Conservation status (IUCN)Not EvaluatedThreat 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