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 Sigmodon (Sigmodon) leucotis Bailey 1902 Sigmodon (Sigmodon) leucotis Bailey 1902 , Proc. Biol. Soc. Wash., 15: 115 . Type Locality: México , Zacatecas , Sierra de Valparaíso, 2653 m . Vernacular Names: White-eared Cotton Rat . Synonyms: Sigmodon (Sigmodon) amoles Bailey 1902 . Distribution: Interior México , from SW Chihuahua and S Nuevo Leon to C Oaxaca . Conservation: IUCN – Lower Risk (lc). Discussion: Subgenus Sigmodon , S. fulviventer species group. See Shump and Baker (1978, Mammalian Species, 96).