The genus Paratrygon, currently recognized as the sole monotypic genus of the family
Potamotrygonidae, has a considerably greater diversity than previously indicated, including …

This study presents an extensive review of published and unpublished occurrence records
of fish species in the Rio Negro drainage system within the Brazilian territory. The data was …

The subfamily Potamotrygoninae, the only extant clade of elasmobranchs exclusive to
freshwater environments, encompasses four genera and 38 species distributed across …

Abstract Potamotrygon marquesi, sp. nov., is described and compared with other species of
Potamotrygon occurring in the Amazon Basin. The identity of this new species is supported …

The table and provided download links below are intended for informational use in
Chondrichthyan research. The allocation aims for faciliating to find species numbers and …

The Amazon region has the largest diversity of freshwater stingrays; however, there are still
places where information about this group is scarce. The present work aims to record the …

Using the last taxonomic review of chondrichthyans of the world, we selected the species
distributed in the north‐western Atlantic Ocean (NWA) and compared it with the available …

Tapeworms of the genus Anindobothrium Marques, Brooks & Lasso, 2001 are found in both
marine and Neotropical freshwater stingrays of the family Potamotrygonidae. The patterns of …

The family Potamotrygonidae is part of the Neotropical ichthyofauna and has the largest
diversity of freshwater elasmobranchs in the world. The neurocranium in Potamotrygonidae …

Guyana, located in northern South America north of Brazil between Venezuela and
Suriname, includes portions of the Orinoco, Amazon, and Courantyne river basins, a …