del Mar Pedreros-Sierra, T. & Ramírez-Pinilla, M.P. (2016)
Reproductive system of females of the Magdalena river endemic stingray Potamotrygon magdalenae: Anatomical and functional aspects. Journal of Morphology, 277(5), 680–697
DOI: 10.1002/jmor.20527
del Mar Pedreros-Sierra, T. & Ramírez-Pinilla, M.P. (2015)
Morphology of the reproductive tract and acquisition of sexual maturity in males of Potamotrygon magdalenae (Elasmobranchii: Potamotrygonidae). Journal of Morphology, 276(3), 273–289
DOI: 10.1002/jmor.20337