Animalia > Chordata > Elasmobranchii > Myliobatiformes > Potamotrygonidae > Potamotrygon > Potamotrygon rex Potamotrygon rex (Great freshwater stingray)
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Animalia > Chordata > Elasmobranchii > Myliobatiformes > Potamotrygonidae > Potamotrygon > Potamotrygon rex Potamotrygon rex (Great freshwater stingray)
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