310 Field Columbian Museum — Zoology, Vol. III. 



Mr Heller writes that "the rarity of mammals was striking. 

 At one camp we put out ioo traps and secured but three mice, 

 the bait remaining untouched on the others. Xearlv all the 

 localities where we have trapped, one-third or one-half of the 

 traps set will catch animals. Some of the bad luck can be 

 attributed to the Panamint Indians, who trap all kinds of rats 

 and mice in the valley for food. Their 'dead-falls' were seen 

 about every clump of mesquites, and a single Indian, it is said, 

 will catch daily seventy-five or more rats and mice for his 

 family." 



Perognathus fallax pallidus. 



Perognathus f. pallidus Mearns, Proc. Biol. Soc. Wash., 1901. 



P- 135- 



7 Specimens: 1 Whitewater, 3 Morongo Pass, 1 Victor, 2 Oro 

 Grande. 



These examples, apparently representing the species described 

 by Dr. Mearns, from Mountain Spring, Coast Range. San Diego 

 County, California, constitute a pale form of Jul lax. "About 

 the lower slopes of the San Bernardino Range in the vicinity 

 of Morongo Pass, this form was fairly common between the 

 altitudes of 2.000 and 6,000 feet. They are not abundant in 

 the Juniper Belt on sandy or gravelly mesas and hillsides." 



Perognathus spinatus. 



Perognathus spinatus Merr., X. Am. Faun., Xo. 1. 1889, p. 59. 



4 Specimens, from Palm Springs. 



This species was abundant at Palm .Springs, but onlv the 

 above individuals were preserved. It goes into the canons for 

 considerable distances. 



Perognathus californicus dispar. 



Perognathus c. dispar Osgood, X. Am. Faun., Xo. 18, 1900. 

 p. 58. Elliot, Syn. X. Am. Mamm.. 1901, p. 255. 



5 Examples: 2 Hot Springs, Mt. Whitney, 1 Fort Tejon. 1 

 Bailey's Ranch, 1 north of Canada de las Uvas. 



"In the Sierra Xevada this sub-species was taken in the vicinity 

 of Mt. Whitney in Long Canon, the waters of which are tributary 

 to Kern River. This locality is in the upper limits of the black 

 pine, or Transition Zone, and apparently marks the upper range 

 of the race, which is here rather uncommon. The specimens 

 were all taken on open, rocky hillsides. Above Fort Tejon they 

 were found on rockv hillsides, from the lower limits of the oak 

 groves to the black pine timber, at 6,000 feet." 



