MAMMALS OF THE MEXICAN BOUNDARY. 



321 



stranded in Cajoii Canyon, brought down bj^ the hi^h waters attending 

 cloud-bursts. 



On San Jose Mountain, Sonora, where it is abundant, I trapped a 

 specimen August T, 1893, at the altitude of 2,194 meters or 7,200 feet, 

 and it doubtless reaches the summit. 



It was numerous in summer throughout the Huachuca Mountains, 

 where I shot them as late in the year as October 26. Mr. Holzner 

 noted the following: "No. 897 had 4 pairs of mammse." Of another 

 specimen: "It has a scent opening which it uses like Sj>ilogale." 

 Again: "Used its scant bag like Spilogale when killed in trap." 



In the Patagonia Mountiins Mr. Holzner noted its presence in 

 numbers as late as November 14, 1892. 



On October 28, 1893, a great many lock-squirrels were seen between 

 Nogales and Tubac. They were feeding upon mesquite beans. The 

 niesquites along this part of the Santa Cruz River were large trees, 

 and I shot two rock-squirrels on the mesquite tops from my horse. 

 Another was seen to enter a burrow at the base of a mesquite tree, 

 from which it had thrown out enough earth to fill a flour barrel. 



It is abundant throughout the Pajaritos Mountains; but at La Osa, 

 December 8 to 28, 1893, we seldom saw them, owing to the coldness 

 of the season. Those obtained as specimens were taken in rocky 

 places near oak trees; their cheek-pouches contained seeds of various 

 weeds and mesquite beans. At Warsaw, in the Pajaritos, we found 

 the rock-squirrels still active in November, but during the first week 

 of December they began to disappear. On a warm day I heard a 

 drum-like sound issuing from the desiccated remains of a cow, and on 

 kicking the dry skin a rock-squirrel ran out. 



Record <ind measureme7Us of 60 specimens of OiospermophUus grammurus. 



Museum num- 

 ber. 



02257 

 (12260 



al2152 

 02262 



a2263 

 121S1 



In skin. 

 In skin. 



1643 



3& 



98 

 119 



330 

 370 



Near Whipple Barracks, Arizona. 

 Fort Verde, Arizona 



.do. 



.do. 



Montezuma Well, Beaver Creek, 

 ArizonS. 



IMO 371 do 



1647 389 Fort Verde, Arizona...' 



1646 390 do 



a American Museum of Natural History. 

 30639— No. 56—07 M — -21 



1884. 

 May 9 

 Aug. 16 



1885. 

 July 7 



IKXIi. 



Feb. IK 

 Apr. 3 



..do.... 

 Apr. 17 

 Apr. 18 



Sex and 

 age. 



rf ad. 

 '■Jad. 



cfad. 

 cTad. 



.f ad. 

 ?ad. 

 cfad. 

 b Mammee five pairs. 



0) a 





20 



