Pseudoplatystoma The currently recognized species in this genus include: The distribution of "Pseudoplatystoma" species includes the great river basins of South America: the Amazon, Orinoco, Paraná, São Francisco, Magdalena, Rupununi, Essequibo, and Suriname Rivers. They can also be found in the Cuiabá river, located in the Brazilian State of Mato Grosso.They have not been reported from river basins draining into the Pacific. "P. fasciatum" inhabits the Guyana region, including the Essequibo and Suriname Rivers and their tributaries, in Guyana, Suriname, and French Guiana. "P. tigrinum" is found in the Amazon River in Brazil, Colombia, Ecuador, Peru, and Venezuela. "P. corruscans" originates
History of Guyana of the legacies of the indigenous peoples was the word Guiana, often used to describe the region encompassing modern Guyana as well as Suriname (former Dutch Guiana) and French Guiana. The word, which means "land of waters", is appropriate considering the area's multitude of rivers and streams. Historians speculate that the Arawak and Carib originated in the South American hinterland and migrated northward, first to the present-day Guianas and then to the Caribbean islands. The Arawak, mainly cultivators, hunters, and fishermen, migrated to the Caribbean islands before the Carib and settled throughout the region. The tranquility of Arawak society was