ocr., 1899.] MAMMALS. 29 
Zapus pacificus Merriam. Valley Jerboa. 
Only two specimens of this little-known spevies were secured and 
one of these was destroyed in the trap. They were caught in thickets 
on the banks of Little Shasta Creek September 20 by R. T. Fisher. 
Ochotona schisticeps (Merriam). Cony; Pika. 
Relatively rare and confined to small and widely separated colonies. 
During our circuit of the mountain, made near timberline the latter 
part of July, we saw what we took to be signs of conies among rocks 
east of Mud Creek Canyon, but finding no more believed we had been 
mistaken, until the evening of July 24, when we camped on some rivu- 
lets of snow water on the north side of Shastina, Here we found a 
small scattered colony reaching up in the slide rock from about 8,000 
to nearly 10,000 feet, and a specimen was secured by Vernon Bailey. 
The next day we font signs in Cascade Gulch a mile or two northwest 
of Horse Camp. Later, 
when camped in the al- 
pine hemlocks on the 
small west branches of 
Squaw Creek, we found 
a colony in the slide 
rock close by. Conies 
were afterwards found 
on both sides of Red 
Butte and on the east 
side of Gray Butte, and 
Osgood heard one near 
the head of Mud Creek 
Canyon. Inall,14speci- 
mens were collected. 
This species differs in 
habits and voice from 
those of the Rocky Moun- 
tains; it is less noisy and less often heard in the middle of the day, for 
which reason it is more apt to escape detection, and its common note, 
instead of the usual ‘bleat,’ is a loud shrill el’ eh, or eh’ el’ el’. It 
seems to be most active in the late afternoon and on moonlight even- 
ings, and its voice is heard at all hours of the night. 
On most mountains where conies live, their well known accumula- 
tions of plants of various kinds, cut and piled on the rocks to dry, are 
conspicuous objects. But on Shasta, where I often saw the animals 
carrying freshly cut plants to their dens in the slide rock, I failed to 
find a single ‘haystack.’ In one place a few fresh stems of Polygonum 
newberryt, with its large broad leaves, were seen, and in another a large 
accumulation of old brown leaves of the same species nixed with a larger 
quantity of Phyllodoce empetriformis—apparently left over from the 
previous year. But the only real ‘haystack’ found on the mountain by 
Fie. Rock cony (Ochotona schisticeys)—Photographed by 
F. Stephens. 
