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
Demographics of French Guiana Demographics of French Guiana According to INSEE the population of French Guiana was 239,450 of January 1, 2012. The population is very young: 44% are below the age of 20, while only 1.7% are 75 years or older. The age distribution is a reflection of the high fertility rates of French Guiana. On January 1, 2010, 64.5% of the population had French nationality, while 35.5% had a foreign nationality. Of these, Surinamese (13.8% of the total population), Haitians (8.8%) and Brazilians (8.7%) were the largest groups. Smaller groups included people with nationality of Guyana (1.7%), Colombia (1.0%), China (0.5%), the