Mares, M. A., R. M. Bárquez, J. K. Braun, and R. A. Ojeda. 1996. Observations on the mammals of Tucumán Province, Argentina. I. Systematics, distribution, and ecology of the Didelphimorphia, Xenarthra, Chiroptera, Primates, Carnivora, Perissodactyla, Arti