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 mollis Kennicott, 1863 . Proc. Acad. Nat. Sci. Philadelphia, 15:157 . TYPE LOCALITY: "Camp Floyd, near Fairfield, [ Utah Co.,] Utah [ USA ]." DISTRIBUTION: Two disjunct populations: in Washington , N of Yakima, W of Columbia, rivers (nancyae only); and SE corner of Oregon , Snake River valley ( Idaho ) southward through Nevada (except extreme S), extreme EC California , and W Utah . SYNONYMS: artemesiae (Merriam, 1913); idahoensis (Merriam, 1913); leurodon (Merriam, 1913); nancyae Nadler, 1968; pessimus (Merriam, 1913); stephensi Merriam, 1898; washoensis (Merriam, 1913). COMMENTS: Subgenus Spermophilus ( Hall, 1981:383 ) . Formerly considered a subspecies of townsendii ( Hall, 1981:383 ) , but differs chromosomally ( Nadler et al., 1984 ). No hybridization between mollis (2n=38) and adjacent canus (incl. vigilis) (2n=46) has been reported (Rickart et al., 1985:97-98). The taxon nancyae (2n=38) is disjunct, but provisionally included here. Reviewed (in part) by Rickart (1987) as S. townsendii .