Photo credit: Felipe Alviz Costa (Bolivia) Description: Abdel Rahman El Gamal Habitats and world distribution: the granulated catfish (Pterodoras granulosus) is found in Amazon and Paraná River basins and coastal drainage in Guyana and Suriname. The species is found in Brazil, Peru, Argentina, Paraguay, Uruguay, Bolivia, Ecuador, and United States. Granulated catfish is commercially fished for human consumption as well as …