HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsFlatheadsSouth African thorny flathead South African thorny flathead (Sorsogona portuguesa) Scientific name: Sorsogona portuguesa Smith, 1953 The South African thorny flathead (Sorsogona portuguesa) is a marine fish of the family Platycephalidae. Native range: Western Indian Ocean, Durban, South Africa to Madagascar and Mozambique. BiologyDorsal spines (total): 9; Dorsal soft rays (total): 12; Anal spines: 0; Anal soft rays: 12. Dark brown above, lighter below.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSorsogona portuguesaFamilyPlatycephalidae (Flatheads)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length17.0Depth range20–70 m (66–230 ft)EnvironmentMarine; demersal; depth range 20 - 70 mClimateSubtropicalDistributionWestern Indian Ocean: Durban, South Africa to Madagascar and Mozambique.Conservation 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