Order Rodentia - Family Cricetidae Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2 955 1189 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Oligoryzomys andinus Osgood 1914 Oligoryzomys andinus Osgood 1914 , Field Mus . Nat. Hist. Publ., Zool. Ser., 10: 156 . Type Locality: Perú , La Libertad Dept., upper Río Chicama, Hacienda Llagueda, 6000 ft ( 1830 m ). Vernacular Names: Andean Colilargo . Distribution: W Perú and WC Bolivia ; geographic and altitudinal limits uncertain. Conservation: IUCN – Lower Risk (lc). Discussion: Karyotype reported by Gardner and Patton (1976) . Recorded as sympatric with O. arenalis in Lima Dept., Perú (Arana-Cardó and Ascorra, 1994).