Português: Desenho de uma arraia-grande (Paratrygon motoro), por Johann Natterer, parte da missão ao Brasil de naturalistas do imperador austríaco Francisco I, de 1817 a 1835
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Date circa 1830
Source Rev. Superinteressante, jan. 2000
Author Johann Natterer (1787–1843)
Source: https://commons.wikimedia.org/wiki/File:Johann_Natterer_-_arraia-grande_(Paratrygon_motoro).jpg

The ocellate river stingray or peacock-eye stingray (Potamotrygon motoro) is a species of freshwater stingray in the family Potamotrygonidae. It is widespread throughout much of the Río de la Plata, Amazon, Mearim and Orinoco basins in tropical and subtropical South America.
Order: Myliobatiformes
Family: Potamotrygonidae
Genus: Potamotrygon
Species: Potamotrygon motoro