This species is known only from the southeastern peninsula of Sulawesi, where it has been found at 300 and 1500 m (1000 and 4900 ft) altitude. Only three specimens of this poorly understood species are known; the last were collected in 1932 at the mountain Tanke Salokko. The IUCN Red List therefore lists the species as Data Deficient.
This animal belongs to the Rattus xanthurus group, which may be a genus separate from Rattus. Although R. salocco is usually considered a subspecies or synonym of Rattus xanthurus, R. salocco was recognized as a separate species more closely related to R. marmosurus in the 2005 third edition of Mammal Species of the World.
- Musser, G.; Lunde, D.; Aplin, K. (2008). "Rattus salocco". IUCN Red List of Threatened Species. Version IUCN3.1. International Union for Conservation of Nature. Retrieved August 17, 2011.
- Musser, G.G.; Carleton, M.D. (2005). "Superfamily Muroidea". In Wilson, D.E.; Reeder, D.M. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore, Maryland: The Johns Hopkins University Press. pp. 894–1531. ISBN 978-0-8018-8221-0.