HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsFlatheadsHalfspined flathead Halfspined flathead (Sorsogona prionota) Scientific name: Sorsogona prionota Sauvage, 1873 The Halfspined flathead (Sorsogona prionota) is a marine fish of the family Platycephalidae. Native range: Western Indian Ocean in Delagoa Bay to Karachi and through Red Sea to the eastern Mediterranean. BiologyDorsal spines (total): 9; Dorsal soft rays (total): 12; Anal spines: 0; Anal soft rays: 12 - 13. Brownish in color, with 4-5 bands crossing back; spiny dorsal dusky brown, other fins dark spotted; under opercle flap dark purple with light lines.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSorsogona prionotaFamilyPlatycephalidae (Flatheads)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length22.0Depth range1–100 m (3–328 ft)EnvironmentMarine; demersal; depth range 1 - 100 mClimateSubtropicalDistributionWestern Indian Ocean in Delagoa Bay to Karachi and through Red Sea to the eastern MediterraneanConservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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