HomeFish encyclopediaSharks and RaysBramble, Sleeper and Dogfish sharksGulper sharksLongsnout dogfish Longsnout dogfish (Deania quadrispinosa) Scientific name: Deania quadrispinosa McCulloch, 1915 The Longsnout dogfish (Deania quadrispinosa) is a marine fish of the family Centrophoridae. Native range: Southeast Atlantic, off Namibia and off Algoa Bay, South Africa. Indo-West Pacific: off southern Mozambique and Natal, South Africa; Australia and New Zealand. BiologyA rare and little-known species found on outer continental shelves and upper slopes. Feeds on bony fishes. Ovoviviparous.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDeania quadrispinosaFamilyCentrophoridae (Gulper sharks)OrderSqualiformes (Bramble, Sleeper and Dogfish sharks)ClassElasmobranchii (Sharks and Rays)Maximum length115Depth range150–1360 m (492–4462 ft)EnvironmentMarine; bathydemersal; depth range 150 - 1360 m, usually 400 - 820 mClimateDeep-waterDistributionSoutheast Atlantic: off Namibia and off Algoa Bay, South Africa. Indo-West Pacific: off southern Mozambique and Natal, South Africa; Australia and New Zealand.Conservation status (IUCN)Near Threatened (NT)Threat to humansHarmlessUsesFisheries: minor commercialResilienceLow, minimum population doubling time 4.5 - 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