140 University of California Publications in Zoology. \VoL-9 
person made any sort of a squeaking noise, the animal’s curios- 
ity would generally bring it out into plain view, its excitement 
being shown by the jerking of the tail, and explosive chippering. 
Juvenals of very small size were seen clambering about awk- 
wardly, but their parents seemed to take no notice of them what- 
ever. On the north side of Sugarloaf, August 19 to 24, this 
species, with other members of the family, was busy garnering 
in seeds of a lupine, and the fruits of a gooseberry (Ribes) and 
Ceanothus. These were being carried into and beneath old logs, 
and into rock piles, doubtless to serve a need the following spring, 
which is the season of food scarcity with these animals. A series 
of 113 skins of this species was obtained. 
Eutamias merriami (Allen). Merriam Chipmunk. 
This species belongs to the high Upper Sonoran and lower 
Transition zones. We found it common in the mingled serub 
and golden oaks on the Pacific slope of the mountains as low as 
3000 feet altitude on the walls of the lower Santa Ana canon. 
It was numerous around Seven Oaks, 5000 feet, and from there 
along the upper Santa Ana nearly to Big Meadows, 6700 feet. 
A few were noted in the black oak belt south of the Santa Ana 
(Barton Flats) as high as 7000 feet. But they were scarce or 
wanting in the pines at even lower altitudes. I found a family 
of three one-third grown young in a rotten stump at the mouth 
of Fish ereek, June 16,1905. From that date on, a good propor- 
tion of those trapped were young-of-the-year. The species was 
common in the pinion belt on the desert slope of the mountains. 
We took it as low as Cactus Flat, 6000 feet altitude; also at 
Saragossa springs, around Doble, and at the north base of Sugar- 
loaf, 7500 feet. At the latter place, August 19 to 24, they were 
gathering service-berries and the fruits of a Ceanothus, climbing 
the stems often until their weight bent them to the ground. 
Thirty-one specimens of this chipmunk were secured. 
Ammospermophilus leucurus leucurus (Merriam). 
Antelope Chipmunk. 
This was a characteristic species all over the desert at the 
north base of the mountains. We found it abundant at Cushen- 
bury springs, August 10 to 14, 1905. That the range of this 
