HomeFish encyclopediaSharks and RaysGround sharksCat sharksBrown catshark Brown catshark (Apristurus brunneus) Scientific name: Apristurus brunneus Gilbert, 1892 The Brown catshark (Apristurus brunneus) is a marine fish of the family Scyliorhinidae. Native range: Eastern Pacific, British Columbia, Canada to northern Baja California, Mexico. Probably south to Panama, Ecuador, and Peru. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. Dark brown, with conspicuous light posterior margin on fins.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameApristurus brunneusFamilyScyliorhinidae (Cat sharks)OrderCarcharhiniformes (Ground sharks)ClassElasmobranchii (Sharks and Rays)Maximum length68.0Depth range33–950 m (108–3117 ft)EnvironmentMarine; demersal; depth range 33 - 950 mClimateSubtropicalDistributionEastern Pacific: British Columbia, Canada to northern Baja California, Mexico. Probably south to Panama, Ecuador, and Peru.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: of no interestResilienceVery Low, minimum population doubling time more than 14 years (Fec assumed to be SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026