“…In recent years, high-elevation surveys in the Central Andes have revealed that we still have much yet to learn about the elevational range limits of small mammals. For example, mountaineering mammal surveys of multiple volcanoes in the Chilean Puna de Atacama have documented evidence of Andean leaf-eared mice, Phyllotis vaccarum (previously referred to as P. xanthopygus rupestris), living at elevations well above 6,000 m (Storz et al 2020(Storz et al , 2023Steppan et al 2022), and mammal surveys in the Andean Altiplano of northwestern Argentina have documented surprisingly diverse rodent assemblages at elevations >4,000 m (Pearson 1951(Pearson , 1982Pearson and Ralph 1978;Urquizo et al 2022). Thus, as part of a continuing effort to further redress Linnean and Wallacean shortfalls for Andean small mammals, here we report the first Chilean record of the genus Punomys, a record that also significantly extends the elevational and latitudinal range of the taxon.…”