Order Rodentia - Family Sciuridae 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 2 754 818 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Spermophilus (Otospermophilus) variegatus subsp. variegatus Erxleben 1777 Spermophilus (Otospermophilus) variegatus subsp. variegatus Erxleben 1777 , Systema Regni Animalis, Vol. 1: 421 . Type Locality: "in Mexico ." Restricted by Nelson (1898:898) to "Valley of Mexico , near City of Mexico ," [ Distrito Federal , Mexico ]. Synonyms: Spermophilus (Otospermophilus) variegatus subsp. buccatus (Lichtenstein 1830) ; Spermophilus (Otospermophilus) variegatus subsp. macrourus Bennett 1833 .