Heliotrygon
Encyclopedia
The Round rays is a newly discovered genus of freshwater stingrays in the family Potamotrygonidae. The genus is endemic to the Amazon River
and its tributaries in Brazil
. It currently contains the following two species:
Amazon River
The Amazon of South America is the second longest river in the world and by far the largest by waterflow with an average discharge greater than the next seven largest rivers combined...
and its tributaries in Brazil
Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...
. It currently contains the following two species:
- Heliotrygon gomesi M. R. de Carvalho & Lovejoy, 2011 (Gomes's round ray)
- Heliotrygon rosai M. R. de Carvalho & Lovejoy, 2011 (Rosa’s round ray)