The Genus Caenolestes is a group of South American marsupials known for their long, pointed snouts and small, rounded ears. They are often referred to as "shrew opossums" due to their resemblance to shrews and their opossum-like pouches. Some common synonyms for the Genus Caenolestes include the Andean caenolestid, the short-tailed shrew opossum, and the Peruvian caenolestid. These small, nocturnal mammals can be found in various habitats, including forests, grasslands, and mountain regions, and play an important role in their ecosystems as insectivores and seed dispersers. Despite their unique appearance and ecological importance, many species within the Genus Caenolestes face threats from habitat loss and fragmentation.