Thorny river stingray (Potamotrygon constellata)

General data
- Main name: Thorny river stingray
- Habitat: Freshwater
Classification
- Genus: Potamotrygon - Potamotrygon
- Family: Potamotrygonidae - Southamerican freshwater stingrays
- Order: Myliobatiformes - Stingrays
- Class: Elasmobranchii - Sharks and Rays
- Superclass: Chondrichthyes - Cartilaginous fishes