HomeFish encyclopediaRay-finned fishesCusk eelsCusk-eelsTownsend's cusk eel Townsend's cusk eel (Brotula townsendi) Scientific name: Brotula townsendi Fowler, 1900 The Townsend's cusk eel (Brotula townsendi) is a marine fish of the family Ophidiidae. Native range: Pacific Ocean, Hawaii and Johnston Island. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 100-105; Anal spines: 0; Anal soft rays: 71 - 84. SL to 18 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBrotula townsendiFamilyOphidiidae (Cusk-eels)OrderOphidiiformes (Cusk eels)ClassActinopterygii (Ray-finned fishes)Maximum length75.0EnvironmentMarine; reef-associatedClimateTropicalDistributionPacific Ocean: Hawaii and Johnston Island.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