Xingu River ray Xingu River ray The Xingu River ray, white-blotched river stingray, or polka-dot stingray ("Potamotrygon leopoldi") is a species of freshwater fish in the family Potamotrygonidae. It is endemic to the Xingu River basin in Brazil and prefers rocky bottoms. It is sometimes kept in aquaria. "P. leopoldi" reaches up to in disc width, in total length and in weight. Females grow larger than males. It is closely related to the similar "P. henlei" from the Tocantins River basin and "P. albimaculata" from the Tapajós River basin. Compared to "P. henlei", "P. leopoldi" is deeper black above and its underparts are
Xingu State Park the Xingu River. It adjoins the Capoto/Jarina Indigenous Territory to the west. Its boundary to the north is the border with the state of Pará. To the east the Fontourinha stream defines its boundary. The park is in the Amazon biome. 81.87% of the park is covered by savanna/pioneer contact, and 18% by savanna/rainforest contact. Xingu State Park was created by decree 3.585 of 7 December 2001 with an area of about . It was redefined by law 8054 of 29 December 2003, signed by the state governor Blairo Maggi, which reduced its size to . The reduction was justified