Subspecies and Distribution. R.m.microdonMerriam,1901—fromCChiapasState(SEMexico)StoCGuatemala. R.m.albilabrisMerriam,1901—NCOaxacaState(SMexico). R. m. wagner Hooper, 1950 — from C Michoacan E to México states (C Mexico). in Cricetidae

Subspecies and Distribution. R.m.microdonMerriam,1901—fromCChiapasState(SEMexico)StoCGuatemala. R.m.albilabrisMerriam,1901—NCOaxacaState(SMexico). R. m. wagner Hooper, 1950 — from C Michoacan E to México states (C Mexico).Published as part of Don E. Wilson, Russell A. Mittermeier & Thomas E. Lacher, Jr, 2017, Cricetidae, pp. 204-535 in Handbook of the Mammals of the World – Volume 7 Rodents II, Barcelona :Lynx Edicions on page 369, DOI: 10.5281/zenodo.670714