Xingu River ray
|Xingu River ray|
Castex & Castello, 1970
The Xingu River ray, white-blotched river stingray, or polka-dot stingray (Potamotrygon leopoldi) is a species of freshwater fish in the Potamotrygonidae family. 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 40 cm (16 in) in disc width, 75 cm (30 in) in total length and 20 kg (44 lb) 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.
- Charvet-Almeida, P., Rosa, R.S. & Pinto de Almeida, M. (2009). "Potamotrygon leopoldi". IUCN Red List of Threatened Species. Version 2017.1 (3.1). International Union for Conservation of Nature. Retrieved 22 February 2017.
- Froese, Rainer and Pauly, Daniel, eds. (2017). "Potamotrygon leopoldi" in FishBase. February 2017 version.
- Fishing World-records: Potamotrygon leopoldi. Retrieved 22 February 2017.
- "Polka-dot stingray, Potamotrygon leopoldi". Animals. Dallas World Aquarium. Retrieved 25 January 2016.
- Carvalho, M.R.d. (2016): Description of two extraordinary new species of freshwater stingrays of the genus Potamotrygon endemic to the rio Tapajós basin, Brazil (Chondrichthyes: Potamotrygonidae), with notes on other Tapajós stingrays. Zootaxa, 4167 (1): 1–63.
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