HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsFatheadsBlob sculpin Blob sculpin (Psychrolutes phrictus) Scientific name: Psychrolutes phrictus Stein & Bond, 1978 The Blob sculpin (Psychrolutes phrictus) is a marine fish of the family Psychrolutidae. Native range: North Pacific, Japan and the Bering Sea to off San Diego, California, USA. BiologyDorsal spines (total): 8; Dorsal soft rays (total): 19-20; Anal spines: 0; Anal soft rays: 12 - 14. Many small cirri scattered on head and body; no preopercular spine; branchiostegal membranes fused to isthmus; peritoneum pale.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePsychrolutes phrictusFamilyPsychrolutidae (Fatheads)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length70.0Depth range500–2800 m (1640–9186 ft)EnvironmentMarine; bathydemersal; depth range 500 - 2800 mClimateDeep-waterDistributionNorth Pacific: Japan and the Bering Sea to off San Diego, California, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesGamefish: yesResilienceVery Low, minimum population doubling time more than 14 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