220 THK MAMMALvS OF MOUNT MAZAMA. 
lain, are less common than in most parts of the country. At Crater 
Lake a few were caught in the pumice sand along the rim, others 
among the cliffs, and still others among rocks in the woods. It is 
possible that two species exist at Crater Lake, since the specimens 
collected show a very large range of variation. At Fort Klamath 
White-footed Mice are more common and a number of specimens 
were collected. 
Pack Rat; Brush-tailed Woodrat. Neotoma cinerea, Ord. 
Klamath Indian name, Cho-cho. 
Common in places throughout the region- One was trapped by 
Mr. Bailey on Castle Crest, on the rim of Crater Lake, at an altitude 
of 8,000 ft. (2,438 meters); and others were obtained by Mr. 
Preble at Prospect in the upper Rogue river valley, at Fort 
Klamath, and in the lava ledges on the east side of Klamath Lake. 
Some of their nests examined by Mr. Preble contained bones and 
skulls. One had apparently been made near the spot where an In- 
dian had been buried, for most of the skeleton was found in the 
nest. In this same nest were remains of spermophiles, skunks, 
dogs, coyotes, fishes, and so on. The Bushy- tailed Woodrat is evi- 
dently somewhat carnivorous, although I am not aware that this 
fact has been previously recorded. A nest found by me in a hollow 
juniper between Goose Lake and the Modoc lava beds, contained 
two young rats and a dead pocket gopher. The latter had been re- 
cently killed and was partly eaten. It had evidently been captured 
and taken to the nest by the parent rat. 
Round-tailed Woodrat. Neotoma iuscipes^ Baird. 
This Round-tailed Woodrat is common in in Rogue river valley 
and is said to occur also at Pelican Bay on Upper Klamath Lake. 
Alpine Phenacomys. Phenacomys orophilus, Merriam. 
During our stay at Crater Lake a special effort was made to 
secure speciment of this genus, and hundreds of traps were kept set 
in likely places. All our eflforts proved fruitless however until the 
morning of August 22, when Mr. Preble found a specimen in one of 
his traps on the steep west slope of Castle Crest. It was in a dry 
place among low huckleberry bushes near a rock cliff, at an altitude 
