Patagonian opossum Patagonian opossum The Patagonian opossum "(Lestodelphys halli)" is the sole species in genus Lestodelphys. The Patagonian opossum occurs further south, in Argentina, than any other living marsupial. Although distributed throughout some parts of southern Argentina, it is one of the least known mammals of South America. They have been spotted near Monte Phytogeographic Province, and in Patagonia Phytogeographic Province, yet there are no records of Patagonian opossums in central Patagonia, which leads mammalogists to believe that they can only live in the Patagonian steppe. There are two areas in the Patagonian steppe where these animals are often found: the province
Monte Desert other two nearby deserts. The geography of the land is very similar to that of the interior Patagonian Desert, with volcanic sediments, piedmont plains, large mountain blocks and many usually dry salt lakes. The major river is the Río Colorado and its tributary the Río Desaguadero, which meet in the south of the region and provide its principal source of irrigation water for wine crops. Due to the region lying on the eastern, or leeward, side of the Andes and west of the Sierra de Córdoba, it experiences very little rain. These rain shadow effects are the primary reason for