NEW SPECIES OF AMERICAN QUADRUPEDS. 69 
states, (S. lysteri,) it differs from it, however, in 
its larger size, longer tail, and several other striking 
particulars. 
The body is stouter than that of the former 
species, the head broader, the nose more obtuse, and 
the tail nearly double the length. In the arrange- 
mmit of the teeth and toes, this species does not 
} 61 from the S. ( Tamias ) lysteri, except 
that they are more robust. The teeth are dark 
orange; whiskers, which are a little shorter than 
the head, black ; a line of fawn color, commencing 
at the nostrils, runs over the eye brows, and termi 
nates a little beyond them in a point of lighter co- 
lor ; a patch of similar color commences under the 
e ye-lids, and running along the cheeks terminates 
at the ear. 
There is a line of dark brown commencing at the 
termination of the nose, where it forms a point, and, 
bordering the fawn color above, is gradually blended 
with the lighter colors of the head. The ears, which 
are of moderate size, and ovate, are on the upper 
margins of the inner surface partially clothed with 
a e\v shoi t, brown hairs ; the outer surface is thick- 
ly clothed with fur, brown on the anterior parts, 
with a patch of white covering about one-fourth of 
the ear on the posterior portions. Behind the ear, 
there is a slight marking of cinereous, of about six 
hues m length, terminating near the shoulder. A 
me of black commences on the hind part of the 
, runs ovei the centre of the back, where it 
spreads out to the width of four lines, and termi- 
nates m a point at the insertion of the tail ; a line 
