HETEROMYID.E 163 



Perognathus panamintus bangsi Mearns. (For 

 Oiitram Bangs.) 



BANGS POCKET-MOUSE. 



Similar to panamintus but paler; above pale vinaceous buff 

 lightly mixed with black ; lateral line blending- with color of 

 sides; under parts white; tail buffy white, slightly darker on 

 upper side. 



Length about 138 mm. (5-45 inches); tail vertebrae 80 

 (3.15); hind foot 19 (.75). 



Type locality, Palm Spring, Riverside County, California. 



Mohave Desert, Ow^en Valley and south to the foothills bor- 

 dering the Colorado Desert on its southwestern side. Seldom 

 common. 



Perognathus panamintus arenicola Stephens. (Sand- 

 inhabiting. ) 



SAND POCKET-MOUSE. 



Similar to bangsi but paler and whiter; above cream buff, 

 slightly mixed w'ith blackish; no lateral line; mastoids greatly 

 swollen and projecting much back of the occiput; interparietal 

 small, its transverse diameter about equal the length. 



Tv'pe locality, San Felipe Narrows, border of the Colorado 

 Desert, California. 



Sand Pocket-Mice inhabit the sandy gulches at the edge 

 of the foothills bordering the Colorado Desert, sometimes being 

 found a short distance out in the Desert. They appear to be 

 rare. One morning about sunrise I found a little rattlesnake, of 

 the species known as "sidewinder," with a dead Sand Pocket- 

 Mouse in its mouth. The snake had crushed it and had just be- 

 gun to swallow it, but disgorged on being struck with the butt 

 of my gun. 



Perognathus brevinasus Osgood. (Short — nose.) 



SHORT-NOSED POCKET-MOUSE. 



Above deep buff or grayish buff mixed with black, a band 



