HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsSculpinsKlamath Lake sculpin Klamath Lake sculpin (Cottus princeps) Scientific name: Cottus princeps Gilbert, 1898 The Klamath Lake sculpin (Cottus princeps) is a freshwater fish of the family Cottidae. Native range: North America, occurs only in upper Klamath and Agency lakes in Oregon, USA. BiologyInhabits rocky and sandy shores of lakes.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCottus princepsFamilyCottidae (Sculpins)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length7.0Common length5.5EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: occurs only in upper Klamath and Agency lakes in Oregon, USA.Conservation status (IUCN)Data deficient (DD)Threat 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