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 Oecomys rutilus Anthony 1921 Oecomys rutilus Anthony 1921 , Am. Mus . Novit., 19: 4 . Type Locality: Guyana , Mazaruni-Potaro Dist., Kartabo. Vernacular Names: Reddish Oecomys . Distribution: Extreme E Venezuela , Guyana , Surinam , and French Guiana to Amazonas , Brazil (see Voss et al., 2001:Fig. 60). Conservation: IUCN – Lower Risk (lc). Discussion: Morphological separation from O. bicolor and distribution amplified by Voss et al. (2001).