Jacik, S.C.C., Aquino, J.B. de, Melo, L.F. de, Rodrigues, R.F., Melo, A.P.F. de, Miglino, M.A. and Rici, R.E.G. 2023. Morphological aspects and germ cells of male reproductive tract of river stingray, Potamotrygon amandae. Acta Scientiarum. Biological Sciences. 45, 1 (Apr. 2023), e63722. DOI:https://doi.org/10.4025/actascibiolsci.v45i1.63722.