CITELLUS. n. -j 



ROCK SPERMOPHILE. 



Type locality. Rio Sestin, State of Durango, Mexico. 

 Geogr. Distr. State of Durango, Mexico. 



/'. Ci ft'/ /us Taricgfiftifi ntah Merriam. 



Citellus variegatus Utah Merr., Proc. Biol. Soc. Wash., xvi, 1903,' 



P- 77- 

 UTAH SPERMOPHILE. 



Type locality. Wasatch Mountains near Ogden, Utah. 



Geogr. Distr. Utah. 



Genl. Char. "Similar to C. variegatus, but smaller, ears longer, 

 back redder, tail darker, nasals longer, and extending more behind 

 premaxillae, point of incisors pale yellow." 



g. Clti'lhis rai'iegft-tus doiigJasi (Richardson). 



Arctomys (Spermophilus) douglasii Rich., Faun. Bor. Amer., 



Mamm., i, 1829, p. 172. 

 Spermophilus grammurus douglasi Elliot, Syn. N. Am. Mamm., 



F. C. M. Pub., n, 1901, p. 89. Zool. Ser. 

 DOUGLAS' SPERMOPHILE. 



Type locality. Plains of the Columbia River, Oregon. 

 Geogr. Distr. Northern California, Oregon. 



variegatus buckleyi (Slack). 

 Spermophilus buckleyi Slack, Proc. Acad. Nat. Scien, Phil., 1861, 



P- 3*4- 

 Spermophilus grammiirus buckleyi Elliot, Syn. N. Am. Mamm., 



F. C. M. Pub., n, 1901, p. 89. Zool. Ser. 

 BUCKLEY'S SPERMOPHILE. 



Type locality. Pack-saddle Mountain, Llano County, Texas. 

 Geogr. Distr. Central Texas. 



% 

 225. Citellus nesioticus Elliot. 



Citellus nesioticus Elliot, Field Columb. Mus. Pub., in, 1904, p. 



263. Zool. Ser. 

 ISLAND SPERMOPHILE. 



Type locality. Santa Catalina Island, California. 



Geogr. Distr. Santa Catalina Island, California. 



Genl. Char. Color dark; little or none of the yellowish brown hue 

 so conspicuous in C. v. beecheyi. Skull shorter and broader; molar 

 broad and heavy; nasals short; braincase short, contracted anteri- 

 orly; antorbital processes very long; pterygoid fossa very short, and 

 processes of pterygoid very long and turning sharply outward at 

 tips; basi-occipital short and broad; bullae large; palate very broad; 



