HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsSculpinsRoughcheek sculpin Roughcheek sculpin (Ruscarius creaseri) Scientific name: Ruscarius creaseri Hubbs, 1926 The Roughcheek sculpin (Ruscarius creaseri) is a marine fish of the family Cottidae. Native range: Eastern Central Pacific, Carmel Bay in central California, USA to central Baja California, Mexico. BiologyFound from intertidal areas to 27 m depth. A rare species.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameRuscarius creaseriFamilyCottidae (Sculpins)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length7.6Depth range27 m (89 ft)EnvironmentMarine; demersal; depth range ? - 27 mClimateSubtropicalDistributionEastern Central Pacific: Carmel Bay in central California, USA to central Baja California, Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026