THE MAMMALS OF MOUNT MAZAMA. 
217 
at the upper edge of the Canadian Zone (alt. 5,800 ft., or 1,760 
meters) by Mr. Cleveland Allen. They were rather common at 
Prospect, but were not found anywhere in the Hudsonian belt and 
consequently were absent from the immediate vicinity of Crater 
Lake. 
Oregon Gray Squirrel. Sciurus fossor^ Peale. 
This large gray tree squirrel ascends the Rogue river valley to 
Prospect, where it was found by Mr. Preble. It occurs also in the 
Yellow Pine forest on the east side of Klamath Lake, along the road 
between Klamath Falls and Williamson river. 
Allen's Chipmunk. Eutamias senex, Bachman. 
Klamath Indian name Was la. 
This large dark-colored chipmunk occurs on most parts of the 
mountain, though its distribution seems to be somewhat irregular; 
at all events it is decidedly rare at some points and common at 
others. It was found along the east base of the mountain among 
the firs and Lodge-pole Pines, whence it ranges northward to Fare- 
well Bend on the Des Chutes river. It occurs also at Fort Klamath, 
and in the upper Rogue river valley at Prospect, where it was com- 
mon. At Crater Lake it is common in the dark hemlock forest, 
but is rather silent and shy and consequently less often seen than its 
smaller relative, E. amoenus, who is always in evidence. Town- 
send's Chipmunk climbs the giant hemlocks fearlessly and feeds on 
the seeds of their cones, scattering the scales about its quarters. It 
makes a low chucking noise similar to that made by the red or pine 
squirrel, and also suggesting the note of the eastern Chipmunk, 
Tamias striatus. 
Mountain Chipmunk. Eutamias amoenus, Allen. 
Klamath Indian name Was-la. 
This small chipmunk is common from the lower edge of the 
Yellow Pine forest about Klamath Lake all the way up to Crater 
Lake on the summit of the mountain. It is most common in open 
places in the woods and in bare spots among logs, stumps and rocks, 
but is also found in the forest, and a few were caught at Fort 
Klamath in traps set for shrews and meadow mice in thick grass on 
the river banks. Near Klamath Lake it was found oiitside of the 
