HomeFish encyclopediaSharks and RaysGround sharksCat sharksRoughtail catshark Roughtail catshark (Galeus arae) Scientific name: Galeus arae Nichols, 1927 The Roughtail catshark (Galeus arae) is a marine fish of the family Scyliorhinidae. In the aquarium it needs water at 5–11°C (41–52°F). Native range: Western Central Atlantic, South Carolina to Florida (USA), northern Gulf of Mexico and Caribbean coast from Belize to Nicaragua. Roughtail catshark care at a glanceTemperature5–11°C (41–52°F) BiologyPresence of caudal crest of large denticles. Ground tint pale yellowish brown, strikingly marked along sides and back with row of dark brown blotches and spots.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGaleus araeFamilyScyliorhinidae (Cat sharks)OrderCarcharhiniformes (Ground sharks)ClassElasmobranchii (Sharks and Rays)Maximum length36.0Depth range250–750 m (820–2461 ft)EnvironmentMarine; bathydemersal; depth range 250 - 750 mClimateDeep-waterDistributionWestern Central Atlantic: South Carolina to Florida (USA), northern Gulf of Mexico and Caribbean coast from Belize to Nicaragua.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interestResilienceLow, 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