Ocellate River Stingray - Potamotrygon motoro
Potamotrygon motor (Rajiformes - Potamotrygonidae) is a species of freshwater stingray endemic to, and widespread throughout, several South American river systems.
These stingrays can be distinguished from closely related species by the presence of orange to yellow dorsal eyespots, each surrounded by a black ring, with diameters larger than the eyes. Body color is otherwise greyish-brown. They are oval in shape with a robust tail, bearing a venomous spine. Maximum total length has been reported at 100 centimeters and maximum weight at 15 kg, though individuals tend to be much smaller.
Photo credit: ©Jason Hering | Locality: Cuiaba river, Matto Grosso, Amazon, Brazil - captive (2008)