Geise, Lena, and Diego Astúa. “Distribution Extension and Sympatric Occurrence of Gracilinanus Agilis and G. Microtarsus (Didelphimorphia, Didelphidae), With Cytogenetic Notes”. Biota Neotropica 9, no. 4 (December 1, 2009). Accessed April 21, 2024. //www.biotaneotropica.org.br/BN/article/view/587.