324 Notes on a Collection of Mammats. [ZOE 
whether the animal taken by Dr. Boyle, was high up on the 
mountains or down in the foothills close to the Sacramento 
plain; if the former, my specimens were from the neighborhood © 
of the type locality. : 
The specimens here referred to were ‘first identified by Dr. 
Allen as Sitomys boylit, but were later referred to S. a. gambeltt 
and his identification is here followed. 
14. Neotoma cinerea (Ord.) Bushy-tailed Wood Rat. 
Found only at the Glen Alpine Sulphur Springs, on Mt. Tallac, 
where six specimens were secured. The species was said to be for- 
merly abundant about the feed-stable and buildings of the resort, 
but had been nearly exterminated by cats about the place; when I 
arrived there appeared to be only one pair, with its young. On 
August 3 I trapped an adult male, and the same day one of the 
workmen brought me three young only a few days old. Later, 
August 12, I secured the female and another young one. 
This species seems to have habits in common with /Veotoma 
Suscipes of the interior valleys of California, especially the habit 
of carrying food away from cabins. An old miner told me that 
during the preceding winter these rats had taken possession of 
his cabin when he was away, and in a few nights had completely 
removed a sack of potatoes. Later he had found the greater 
part of the stolen goods in a hollow stump near his dwelling. 
I have also been told that these animals frequently bring back 
articles to replace the things stolen, and have from this habit 
been called “‘ trading rats,”’ but I have no proof of this assertion. 
The six specimens vary in color. The adult male is dark 
gray above with faint shadings of brownish yellow along the 
sides, extending to the rump'and for a short distance along the 
upper surface of the tail. The latter is dark gray for the most 
part, but is tipped with grayish white. The female of this spe- 
cies is a brownish yellow, richer along sides and on rump and 
shoulders. Below from nose to tip of the tail it is similar to the 
coloration of the male. The three young, collected August 3, 
are dark gray above, the color intensifying posteriorly until the 
lower back and rump are almost black. The brownish wash has 
begun to appear along the sides and about the shoulders. 
low, along the median line, the pelage is pure white, but 
