HomeMarine aquarium fishOther marine fishBlotchy swell shark Blotchy swell shark (Cephaloscyllium umbratile) Scientific name: Cephaloscyllium umbratile Jordan & Fowler, 1903 The Blotchy swell shark (Cephaloscyllium umbratile) is a marine fish of the family Scyliorhinidae. Native range: Western Pacific, Japan to the South China Sea, possibly to New Guinea. Similar to Cephaloscyllium isabellum but the color pattern is different. BiologyOverall color is lighter than C. isabellum, with irregular saddles and numerous blotches and a spotless ventral surface.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCephaloscyllium umbratileFamilyScyliorhinidae (Cat sharks)OrderCarcharhiniformes (Ground sharks)ClassElasmobranchii (Sharks and Rays)Maximum length120Depth range20–200 m (66–656 ft)EnvironmentMarine; reef-associated; depth range 20 - 200 mClimateSubtropicalDistributionWestern Pacific: Japan to the South China Sea, possibly to New Guinea. Similar to Cephaloscyllium isabellum but the color pattern is different.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesAquarium: public aquariumsResilienceLow, minimum population doubling time 4.5 - 14 years (Fec assumed to be More other marine fishCuckoo rayLeucoraja naevusEuropean congerConger congerRibbontail stingrayTaeniura lymmaSpotted ratfishHydrolagus collieiBat eagle rayMyliobatis californicaBroadnose sevengill sharkNotorynchus cepedianusSee all other marine fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026