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 Akodon (Akodon) dayi Osgood 1916 Akodon (Akodon) dayi Osgood 1916 , Field Mus . Nat. Hist. Publ., Zool. Ser., 10: 208 . Type Locality: Bolivia , Cochabamba Dept., Todos Santos, Río Chaparé. Vernacular Names: Dusky Akodont . Distribution: Lowland to intermediate elevations (up to 2450 m ), S Pando to WC Santa Cruz , Bolivia ( Anderson, 1997 ). Conservation: IUCN – Lower Risk (lc). Discussion: Subgenus Akodon , A. varius species group (Myers, 1989). Interpreted as a subspecies of A. tapirapoanus (= Bolomys lasiurus ) by Cabrera (1961); considered a species closely related to A. toba by Myers (1989).