MAMMALS OF THE MEXICAN BOUNDARY. 231 



mountains, and in the Santa Rosa Valley near Monument No. IGl. 

 They were abundant February 8, 1894, in the vicinity of Monuments 

 Nos. 178 and 179. On February 9, 1894, when I rode across the Tule 

 Desert from the dam at Monument No. 179 to Tule Wells, antelope 

 were ranging in abundance if one could judge by the number of 

 tracks seen, although I saw only 4 antelope at Monument No. 183. 

 Lieut. D. D. Oaillard shot one near here on his first reconnoissance of 

 this desert region. During February we saw more of them in the 

 vicinity of Tule Wells and on the Lechuguilla Desert, between the 

 Tule and Gila mountains. Dr. W J McGee writes that the fauna 

 of Seriland, Sonora, Mexico, includes the antelope. Though not 

 abundant, some antelope remained on the Colorado Desert. We saw 

 their tracks near Gardner's and Laguna stations, and I have seen a 

 specimen taken by Mr. A. W. Anthony west of the Coast Range in 

 Lower California. 



