90 NORTH AMERICAN FAUNA. (wo. 16. 
At Big Spring, in Shasta Valley, where they abound, W. H. Osgood 
saw several climb up on a beam and enter an opening in a granary. 
Callospermophilus chrysodeirus Merriam. Golden-mantled Ground 
Squirrel. 
One of the most abundant and conspicuous mammals of the moun- 
tain, where they were seen daily from the manzanita belt up to timber- 
line, and where 52 specimens were collected. At Sisson they are rare, 
but 2,000 feet higher are fairly common, as they are also in Squaw Creek 
Valley at the south base of the mountain. In the fir forest they make 
their homes under logs or about the roots of trees, but in the neighbor- 
hood of timberline live in burrows under the rocks, often in slide rock, 
associated with small colonies of conies. At low altitudes they are 
usually unwary and may be easily killed with the ‘auxiliary’ barrel, 
but in the neighborhood of timberline they are so exceedingly shy it 
is difficult to approach within gunshot. At our camp among the alpine 
hemlocks on upper Squaw Creek they first kept at long range, but find- 
ing us harmless gradually overcame their fear, and finally, toward 
the end of the season, came to be one of the most persistent of camp 
robbers, stealing bread and other eatables. At the same time they 
never cawe freely and boldly as did their associates, the chipmunks, 
but always stole in silently and if possible kept out of sight. 
This species goes into winter quarters much later than its relatives in 
the Rocky Mountain region. On Shasta it was seen daily near timber- 
line until after the middle of September and a few were noticed on 
warm days as late as September 24, but all those secured during the 
latter part of the month were young of the year. Between Wagon 
Camp and Sisson they were seen as late as September 26, 
Eutamias amenus (Allen). JKlamath Chipmunk. 
Abundant in the chaparral of the lower slopes and thence up through 
the forest to timberline. Fifty-three specimens were obtained at vari- 
ous points on the mountain. At Wagon Camp they were common 
and were seen picking unripe serviceberries the latter part of July. 
At the south base of the inountain one was killed as low down as 
Warmeastle Soda Spriugs in Squaw Creek Valley. In the forest they 
live mostly about logs and stumps and are quite fearless, but along 
the upper edge of timber, where they live among the bare rocks, they 
areanuch more wary. 
Eutamias senex (Allen), Allen Chipmunk. 
Abundant in the Shasta fir belt and ranging down to Sisson and 
Warmeastle Soda Springs at the base of the mountain and up to the 
upper limit of continuous timber, though perhaps not to extreme tim- 
berline. Sixty-eight specimens were secured. 
At Wagon Camp they were common and were usually associated with 
their small cousin, L. amanus. They are more arboreal than the other 
