Pygmy short-tailed opossums are a very poorly known species. Not many specimens of this mysterious mammal have been collected (about 15 individuals total); the are from Bolivia (seven) and the rest from Brazil and Argentina. However, the range of Monodelphis kunsi probably extends to Peru since the reported collection sites were in close proximity to the national borders of this country. The first type specimen of this opossum was collected in Bolivia at "La Granja" near the west margin of Itonamas River, 4 km north of Magdalena (13° 18' S, 64° 09'W) at approximately 200 m of elevation. In Argentina, the first specimen of Monodelphis kunsi was collected quite recently (2005) at 22° 18' 41.4'' S, 63° 58' 7.1''W, 700 m above sea level.
Biogeographic Regions: neotropical (Native )
- Anderson, S. 1982. Monodelphis kunsi. Mammalian Species, 190: 1-3.
- Jayat, P., D. Miotti. 2005. Primer registro de Monodelphis kunsi (Didelphimorphia, Didelphidae) para Argentina. Mastozoologia Neotropical/ Journal of Neotropical Mammalogy, 12/2: 253-256. Accessed February 20, 2006 at http://redalyc.uaemex.mx/redalyc/pdf/457/45712214.pdf.
- Salazar, J., M. Campbell, S. Anderson, S. Gardner, J. Dunnum. 1994. New records of Bolivian mammals. Mammalia, 58/1: 125-130.
- Vargas, J., T. Tarifa, C. Cortez. 2003. Nuevos registros de Monodelphis adusta y Monodelphis kunsi (Didelphimorphia: Didelphidae) para Bolivia. Mastozoologia Neotropical/Journal of Neotropical Mammalogy, 10/1: 123-131. Accessed February 20, 2006 at http://www.cricyt.edu.ar/mn/indice/pdf/10_1/vargas.pdf.