HomeFish encyclopediaSharks and RaysGround sharksCat sharksIndian swellshark Indian swellshark (Cephaloscyllium silasi) Scientific name: Cephaloscyllium silasi Talwar, 1974 The Indian swellshark (Cephaloscyllium silasi) is a marine fish of the family Scyliorhinidae. Native range: Western Indian Ocean, vicinity of Quilon, India and Sauqira Bay, Oman. BiologyFound on the uppermost continental slope. Probably a dwarf species. Oviparous.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCephaloscyllium silasiFamilyScyliorhinidae (Cat sharks)OrderCarcharhiniformes (Ground sharks)ClassElasmobranchii (Sharks and Rays)Maximum length36.0Depth range300 m (984 ft)EnvironmentMarine; bathydemersal; depth range 300 - 300 mClimateDeep-waterDistributionWestern Indian Ocean: vicinity of Quilon, India and Sauqira Bay, Oman.Conservation status (IUCN)Data deficient (DD)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