70 NEW SPECIES OF AMERICAN QUADRUPEDS. 
of similar color commences at the shoulders, and 
running parallel, terminates a little beyond the hips ; 
another, but narrower and shorter line, of the same 
color, runs parallel with this, low down on the sides, 
giving it five black stripes. The head and back 
are light yellowish-brown, presenting on the upper 
surface a dusky-ochre color. It has not the 
whitish stripes on the sides, nor the rufous co- 
lor on the hips, which are so conspicuous in the 
Sciurus ( Tamias ) lysteri. On the throat, belly, 
and inner parts of the legs and thighs, the color is 
light cinereous ; there is no line of separation be- 
tween the colors of the back and belly. The tail, 
which is not bushy, is on the upper surface grayish- 
black, having a hoary appearance. Underneath it 
is reddish-brown for two-thirds of its breadth, then 
a narrow line of black, tipped with light ash. The 
nails are brown. 
Length of the head and body, 6 inches 9 lines. 
“ “ tail, (vertebrae,) 4 “ 0 “ 
“ “ “ including fur, 5 “ 0 “ 
“ of head, 2 “ o “ 
Height of ear, 0 “ 6 “ 
Length of heel to middle claw of 
the hind foot, 1 “ 6 “ 
Mr. Townsend states in his notes : “ This pretty 
little fellow, so much resembling our common stri- 
atus, is quite common. It lives in holes in the 
ground; running over your foot as you traverse 
the woods. It frequently perches itself upon a log 
or stump, and keeps up a continual clucking, which 
is usually answered by another at some distance, 
