HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsSculpinsDarter sculpin Darter sculpin (Radulinus boleoides) Scientific name: Radulinus boleoides Gilbert, 1898 The Darter sculpin (Radulinus boleoides) is a marine fish of the family Cottidae. Native range: Eastern Pacific, Langara Island, Queen Charlotte Islands, northern British Columbia to Santa Catalina Island, southern California, USA. BiologyDorsal spines (total): 10; Dorsal soft rays (total): 21; Anal spines: 0; Anal soft rays: 21 - 23. Caudal fin rounded. Pelvic fins small.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameRadulinus boleoidesFamilyCottidae (Sculpins)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length14.0Depth range15–146 m (49–479 ft)EnvironmentMarine; demersal; depth range 15 - 146 mClimateTemperateDistributionEastern Pacific: Langara Island, Queen Charlotte Islands, northern British Columbia to Santa Catalina Island, southern California, USA.Conservation status (IUCN)Not EvaluatedThreat 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