Carvalho MRD.

Potamotrygon rex, a new species of Neotropical freshwater stingray (Chondrichthyes: Potamotrygonidae) from the middle and upper rio Tocantins, Brazil, closely allied to Potamotrygon henlei (Castelnau, 1855)

. Zootaxa [Internet]. 2016 Aug. 16 [cited 2025 May 2];4150(5):537–565. Available from: https://www.mapress.com/zt/article/view/zootaxa.4150.5.2