Order Rodentia - Family Sciuridae Author Robert S. Hoffmann Author Charles G. Anderson text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 419 465 book chapter http://doi.org/10.5281/zenodo.7353130 1-56098-217-9 7353130 Spermophilus lateralis (Say, 1823) . In Long, Account Exped. Pittsburgh to Rocky Mtns, 2:46 . TYPE LOCALITY: "near Cafion City." Restricted by Merriam (1905: 163) to Arkansas River, about 26 mi. ( 42 km ] below Canyon City, Fremont Co., Colorado [ USA ] . DISTRIBUTION: Montane W North America, from C British Columbia to S New Mexico in the Rocky Mtns, and the Columbia River south to S California and Nevada . SYNONYMS: arizonensis (V. Bailey, 1913) ; bernardinus Merriam, 1898; brevicaudus Merriam, 1893; caryi (A. Howell, 1917); castanurus ( Merriam, 1890 ); certus (Goldman, 1921); chrysodeirus ( Merriam, 1890 ); cinerascens ( Merriam, 1890 ); connectens (A. Howell, 1931); mitratus (A. Howell, 1931); tescorum ( Hollister, 1911 ); trepidus (Taylor, 1910); trinitatus (Merriam, 1901); wortmani (J. Allen, 1895). COMMENTS: Subgenus Callospermophilus ( Hall, 1981:406 ) . Gromov et al. (1965:150) considered Callospermophilus a subgenus of the genus Otospermophilus .