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.