HARRIS’S SPERMOPHILE OR MARMOT SQUIRREL. 26S 
GEOGRAPHICAL DISTRIBUTION. 
Probably west of the Rocky Mountains, on the route followed by Messrs, 
Nuttall and Townsend, in their journey to Oregon overland. 
GENERAL REMARKS. 
This species bears a very slight resemblance to Spermophilus lateralis 
of Say, but differs so widely from it that it is unnecessary to institute a 
close comparison. It is a smaller animal, the head and ears being diminu- 
tive compai ed with the latter ; it has a single stripe of white on the sides 
of the back, whilst in Lateralis a broad white stripe is margined on each 
side by a stripe of black, giving it the appearance of having four black 
stripes on the back, while S. Harrisii has no black about the back or sides 
at all. 
