118 CYNOMYS. 



Measurements. Total length, 385; tail vertebrae, 70; hind foot, 

 58. Skull, total length, 63 ; Hensel, 52 ; zygomatic width, 45 ; greatest 

 width of braincase, 25; length of nasals, 21; palatal length, 31.5; 

 length of upper molar series, 13; length of mandible, angle to top of 

 incisors, 18; of lower rnolar series, 16. 



230. Cynomys arizonensis Mearns. 



Cynomys arizonensis Mearns, Bull. Am. Mus. Nat. Hist. N. Y., 

 1890, p. 305. Elhot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 

 1901, p. 104. Zool. Ser. Id. Mamm. Middle Amer. & W. 

 Indies, F. C. M. Pub., iv, Pt. i, 1904, p. 154. Zool. Ser. 

 Arizona Prairie-dog. 



Type locality. Point of Mountain near Wilcox, Cochise County, 

 Arizona. 



Geogr. Distr. Arizona into State of Chihuahua. 



231. Cynomys gunnisoni (Baird). 



Spermophilus gunnisoni Baird, Proc. Acad. Nat. Scien. Phil., 1855, 



P- 334- 

 Cynomys gunnisoni Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 



II, 1901, p. 103. Zool. Ser. Id. Mamm. Middle Amer. & W. 

 Indies, F. C. M. Pub., iv, Pt. i, 1904, p. 156. Zool. Ser. 

 Gunnison's Prairie-dog. 



'Type locality. Cochetopa Pass, Rocky Mountains, Saguache 

 County, Colorado. 



Geogr. Distr. Colorado, Arizona, and New Mexico, into State of 

 Chihuahua, Mexico. 



232. Cynomys lewisi (Audubon and Bachman). 



Arctomys lewisii Aud. & Bachm., Quad. N. Am., in, 1853, p. 32, 



pi. cvii. 

 Cyttomys leuciirus Merr., N. Am. Faun., No. 4, 1890, p. 33. 

 Cynomys lewisi Elliot, Syn. N. Am. Mamm., F. C. ]\I. Pub., 11, 

 1901, p. 104. Zool. Ser. 

 Lewis' Prairie-dog. 



Type locality. Fort Bridger, Sweetwater County, Wyoming. 

 Geogr. Distr. Wyoming, Utah in the Uncompahgre Indian Reser- 

 vation. 



233. Cynomys parvidens Allen. 



Cynomys parvidens Allen, Bull. Brookl. Inst. Arts & Scien., i, 

 No. 5, 1905, p. 119. 

 Utah Prairie-dog. 



Type locality. Buckskin Valley, Iron County, Utah. 

 Geogr. Distr. Unknown. 



