Porcupine river stingray
| Porcupine river stingray | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Chondrichthyes | 
| Subclass: | Elasmobranchii | 
| Order: | Myliobatiformes | 
| Family: | Potamotrygonidae | 
| Genus: | Potamotrygon | 
| Species: | P. histrix | 
| Binomial name | |
| Potamotrygon histrix (J. P. Müller & Henle, 1834) | |
| Synonyms | |
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The porcupine river stingray (Potamotrygon histrix, sometimes incorrectly modified to Potamotrygon hystrix) is a species of river stingray in the family Potamotrygonidae, the type of the Potamotrygon genus. It is found in the basins of the Paraná and Paraguay River basins in South America. The population in the Rio Negro basin was described as a separated species, P. wallacei, in 2016.