HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsSculpinsBelligerent sculpin Belligerent sculpin (Megalocottus platycephalus platycephalus) Scientific name: Megalocottus platycephalus platycephalus Pallas, 1814 The Belligerent sculpin (Megalocottus platycephalus platycephalus) is a brackish-water fish of the family Cottidae. Native range: North Pacific. BiologyMarine, but often entering mouths of rivers.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMegalocottus platycephalus platycephalusFamilyCottidae (Sculpins)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length42.0Depth range0–120 m (0–394 ft)EnvironmentMarine; brackish; demersal; depth range 0 - 120 mClimateTemperateDistributionNorth Pacific.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 14 years (Assuming Fec=10-100) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026