The Andean hairy armadillo (Chaetophractus nationi) is an armadillo located in Bolivia, in the region of the Puna; the departments of Oruro, La Paz, and Cochabamba (Gardner, 1993). Nowark (1991) describes it as distributed in Bolivia and northern Chile. A recent publication of Pacheco (1995) also locates the species in Peru, basically in Puno Region. This species is also thought to be present in northern Argentina. However, this location may actually only contain a population of C. vellerosus.