HomeFish encyclopediaRay-finned fishesPerch-like fishSandperchesArgentinian sandperch Argentinian sandperch (Pseudopercis semifasciata) Scientific name: Pseudopercis semifasciata Cuvier, 1829 The Argentinian sandperch (Pseudopercis semifasciata) is a marine fish of the family Pinguipedidae. Native range: Southwest Atlantic, Sao Paulo, Brazil to Golfo San Jorge, Argentina. BiologyDorsal spines (total): 4 - 5; Dorsal soft rays (total): 24-27; Anal spines: 1; Anal soft rays: 22 - 24. Body pale brown with several dark brown vertical and horizontal stripes composed of dark brown blotches. A row of dark brown blotches on middle of dorsal fin membrane. An obvious black blotch on base of upper lobe of caudal fin.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePseudopercis semifasciataFamilyPinguipedidae (Sandperches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length100.0Common length48.6Depth range100 m (328 ft)EnvironmentMarine; demersal; non-migratory; depth range ? - 100 mClimateSubtropicalDistributionSouthwest Atlantic: Sao Paulo, Brazil to Golfo San Jorge, Argentina.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercial; gamefish: yesResilienceLow, minimum population doubling time 4.5 - 14 years (Assuming tmax>10) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026