L ,( ,M) 



BULLETIN 56) UNITED STATES NATIONAL MUSEUM. 



afford it a wider held for the development and exhibition of its 

 scansorial powers. 



I found it along the line of the Colorado from Peach Springs 

 and Diamond Creek to near the mouth of Cataract Creek. It was 

 abundant in the deep canyon of the latter stream, where I obtained 

 specimens at the Havasupai Indian settlement, at the altitude of 

 8,090 feet, and found it thence for a distance of 30 miles up the 

 canyon. 



In the pine region around Whipple Barracks it is exceedingly 

 abundant. I found it at the highest points in that neighborhood, 

 where the Arizona mountain chipmunk {Eutamias cinereicollis) 

 does not occur. Thence it follows the course of the streams and 

 canyons, always avoiding the smooth country, into the A.gua Fria 

 Yallev on one side and the Verde on the other. I traced it down 



Fig. 47.— Eutamias dobsalis. (Cat. No. ;fflJ3S, l'. S. N. M.) «, Dobsaj. view; /-, Ventral view; c, 



Lateral view. 



the Apia Fria and its branches to a point below New River and 

 down the Verde River nearly to Salt River and the Gila. It ranges 

 along the tributaries of the Verde River well up into the foothills 

 and along the high mesas of the Mogollon Mountains, reaching the 

 altitude of 6,500 feet; and to the southward it ranges to the pine- 

 clad summits of the Mazatzal Mountains. I also found it in the 

 valleys of Salt River and the Gila, and among the rocky foot- 

 hills bordering the Santa Cruz and Rio San Pedro, in southern 

 Arizona. During a brief visit I failed to find it in the foothills 

 of the Chiricahua Mountains, but it probably ranges through those 

 mountains as it enters the Mexican State of Sonora. We were unable 

 to find it in the San ,Jose or Iluachuca Mountains or in the ranges 

 to the westward. 



The Gila chipmunk was originally described by Spencer F. Baird 

 from specimens procured by J. II. Clark in (he canyon- of the 



