Viana, D. C., L. A. Rui, A. C. dos Santos, M. A. Miglino, A. C. de Assis Neto, L. P. F. Araujo, A. S. Oliveira, and A. L. Sousa. “Seasonal Morphological Variation of the Vas Deferens of Scorpion Mud Turtle (Kinosternon Scorpioides)”. Biota Neotropica, vol. 14, no. 3, Sept. 2014, //www.biotaneotropica.org.br/BN/article/view/1321.