Two new species of freshwater stingrays of the genus Paratrygon from the Orinoco basin

Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba Thiago Silva Loboda, Carlos A. Lasso, Ricardo de Souza Rosa, Marcelo Rodrigues de Carvalho ABSTRACT: The genus Paratrygon, currently recognized as the sole monotypic genus of the family Potamotrygonidae, has a