HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsSculpinsWood River sculpin Wood River sculpin (Cottus leiopomus) Scientific name: Cottus leiopomus Gilbert & Evermann, 1894 The Wood River sculpin (Cottus leiopomus) is a freshwater fish of the family Cottidae. Native range: North America, known only from Little and Big Wood River systems (Snake River system) in Idaho, USA. BiologyOccurs in rubble and gravel riffles of creeks and small rivers.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCottus leiopomusFamilyCottidae (Sculpins)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length11.0Common length7.5EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: known only from Little and Big Wood River systems (Snake River system) in Idaho, USA.Conservation status (IUCN)Vulnerable (VU) (D2)Threat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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