HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsSculpinsSpineless sculpin Spineless sculpin (Phallocottus obtusus) Scientific name: Phallocottus obtusus Schultz, 1938 The Spineless sculpin (Phallocottus obtusus) is a marine fish of the family Cottidae. Native range: Eastern Pacific, Aleutian Islands, Alaska. Species factsScientific namePhallocottus obtususFamilyCottidae (Sculpins)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Depth range0–150 m (0–492 ft)EnvironmentMarine; demersal; depth range 0 - 150 mClimatePolarDistributionEastern Pacific: Aleutian Islands, Alaska.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