de Souza Valentim, F.C. & Porto, J.I.R. & Bertollo, L.A.C. & Gross, M.C. & Feldberg, E. (2013)
XX/XO, a rare sex chromosome system in Potamotrygon freshwater stingray from the Amazon Basin, Brazil.
Genetica, 141(7–9), 381–387 DOI: 10.1007/s10709-013-9737-2