122 ZOOLOGY. 
?PTEROMYS OREGONENSIS, Bach. 
Oregon Flying Squirrel. 
Baird, Gen. Kep., Mammals, 1857, p. 290 ; also chap. 1, p. 80. 
I have heard of several flying squirrels that have been found in the Puget Sound region. 
One was kept alive for some time as a pet in a family residing on the Nisqually river. 
■ Mr. Packwood, one of the oldest and most reliable settlers on Puget Sound, informed me that 
the animal there found is much larger than that of the Atlantic States; approaching much more 
the size of an ordinary gray squirrel. — S. 
TAMIAS TOWSENDII, Bach. 
Townsend's Striped Squirrel ; Western Chipmouk. 
[For Sp. Ch. and synonymy see chap. 2, p. 97, or Baird's Gen. Eep., Mam., 1857, p. 300.] 
This squirrel is exceedingly abundant in the Cascade mountains and in the forest regions of 
Puget Sound and the lower Columbia. In habits it closely resembles its near relative the 
T. quadrivittatus, as well as the common "cliipmonk" of the Atlantic. Like these species, it 
probably spends the cold season in torpor. — S. 
Note. — T. quadrivittatus^ Say, chap. 2, p. 97. This species is to be looked for on the eastern 
slopes of the Cascade mountains in Washington Territory, as it occurs near Klamath lake, and 
in the Blue mountains of Oregon. Dr. Cooper thinks that the differences noticed on page 81, 
chap. 1, in their cries, may indicate that those seen by him near the Yakima river were, in 
part at least, of this species. 
SPERMOPHILUS BEE CHE YI, Rich. 
Calfornia Ground Squirrel. 
Baird, Gen. Eep., Mammals, 1857, 307; also chap. 1. p. 81. 
I saw the California ground squirrel in the valley of Clear Lake — a large sheet of water 
between Russian river and the Sacramento — and afterwards I saw them in immense numbers 
on the Salmon, a branch of Klamath river. They inhabit the " foot-hills " which extend down 
to the terraces, or, as they are called, "high bars," on the river, which are everywhere marked 
by their trails leading to water, which are beaten as plainly as those of deer. They are in 
body about the size of the grey squirrel, but shorter, their fore legs being very short. — General 
color mottled gray, with a hlaclz patch, or broad stripe, between the shoidders. 
They are inveterate thieves, impudently entering the huts and tents of the miners to steal 
flour, bread, rice, <fec. I have had large cakes of baked bread carried, or more probably rolled, 
by them from one end of my cabin to the other. To make amends, they are delicious eating; 
the flesh, very white and tender, resembles more nearly frog's legs than any thing else to which 
I can compare it. In autumn they are fat enough to fry in their own grease. I have heard 
that they extend as far north as the Willamette valley, but I never saw them there myself. 
Their tails, like those of the white-footed rat, [Neotoyna occidentalis,) are sparsely covered with 
hair. — G. 
SPERMOPHILUS DOUGLASSII, Cuvier. 
Columbia Ground Sqnirreh 
[See chap. 2, p. 98.] 
The Columbia "ground squirrel" is found very numerous on the open plains and the scrub 
oak foot-hills, at the eastern bases of the Cascade mountains. Near Port Dalles they are very 
