Spermophilus tridecemlineatus (Mitchill, 1821) . Med. Repos. (NY), (n.s.), 6(21):248.

TYPE LOCALITY: " ...region bordering the sources of the river Mississippi ... "; restricted by Allen (18956:338) to C Minnesota [USA] .

DISTRIBUTION: Great Plains, from C Texas to E Utah, Ohio (USA) and SC Canada.

SYNONYMS: alleni Merriam, 1898; arenicola (A. Howell, 1928); badius Bangs, 1899; bianca Armstrong, 1971; hollisteri (V. Bailey, 1913); hoodii (Sabine, 1822); monticola (A. Howell, 1928); olivaceous J. Allen, 1895; pallidus J. Allen, 1874; parvus J. Allen, 1895; texensis Merriam, 1898.

COMMENTS: Subgenus Ictidomys (Hall, 1981:391) . Reviewed by Streubel and Fitzgerald (1978b, Mammalian Species, 103). See also comment under mexicanus .