810 



BULLETIN 56, UNITED STATES NATIONAL MUSEUM. 



Spermophilus lateralis, F. Cuvier, Suppl. Buffon, I, Mam., I, 1832, ]). 335. — Baird, 



Mam. N. Am., 1857, p. 312.— Miller and Rehn, Proc. Best. Soc. Nat. Hist., 



XXX, N<>. 1, Dec. 27, 1901, p. 51. 

 Tamias lateralis, A.llen, Proc. Bost. Soc. Nat. Hist., XVI, 1.S74, p. 299; Monogr. 



N. Am. Rodentia, 1877, p. 814. — Coues and Yarrow, Wheeler Surv., V, 



Zool., 1875, p. 119 (Apache, Arizona). — Merriam, North American Fauna, 



No. 2, 1890, p. 53 (San Francisco Mountain, Arizona). 

 [Spermophilus'] lateralis, Elliot, Field Col. Mus., Zool. Ser., 1 1, 1901, i». 83 ["Sper- 



iimjihihix ( < 'a/luxjit rimijifiilii.*) l<iti'r<t/is,' n fig. 17]. (Synop. Mam. X. Am.) 

 Clitellus] lateralis, Elliot, Field. Col. Mus., Zool. Ser., IV, 1904, p. 147, in text 



(Mam. Mid. Am.). 

 Yung-yV-uh, of the Hopi Indians of northeast Arizona. 



Type-locality.— "Arkansas River, hit. 38° 25'; long. 105° 20'," a 

 few miles below Canyon City, Colorado. 



Fig. 49.— Callospermophiujs lateralis. San Francisco Mountains, Arizona. (Cat. n<>. •jjtjt, 

 U.S N.M. i a, Dossal view; 6, Ventral view, c, Lateral view 



Geographical range. — Transition and Lower Boreal zones of moun- 

 tains of the Colorado Plateau, in Arizona, New Mexico, and north- 

 ward. 



Description. — About the size of Sciurus hudsonieus. Length, 275 

 mm.; tail vertebrae, LOO; ear from crown, 15: oar from notch, 22; hind 



