80 
LONG-TAILED DEER. 
We did not see any Deer of this species on our journey up the Missouri, 
nor do we think it is to be found east of the Rocky Mountains. The 
Virginian deer, on the contrary, disappears to the north and west, as 
Richardson says he has not been able to discover the true Cervus Virgi- 
nianus within the district to which the Fauna Boreali Americana refers. 
GEOGRAPHICAL DISTRIBUTION. 
On the east side of the Rocky Mountains this species does not range 
beyond lat. 54°, nor to the eastward of 105° longitude. Douglas states 
that it is the most common Deer of any in the districts adjoining the 
Columbia River, more especially in the fertile prairies of the Cowalidske 
and Multnomah rivers within one hundred miles of the Pacific Ocean. It 
is also occasionally met with near the base of the Rocky Mountains on the 
same side of that chain. 
GENERAL REMARKS. 
We have after some hesitation admitted this species, and as much has 
been said (although but little learned) of the western Long- tailed Deer 
since the days of Lewis and Clark, it is desirable that the species should 
be carefully investigated. 
We overlooked the specimen of the Long-tailed Deer in the Zoological 
Museum, from which the description of Richardson was taken, and for a 
long time we had no other knowledge of the species than the somewhat 
loose description of it by Douglas, who, although an enthusiastic collector 
of plants and something of a botanist, was possessed of a very imperfect 
knowledge of birds or quadrupeds, and probably had never seen the Cervus 
Virginianus, our Virginian Deer. 
We have given what we consider an excellent figure by J. W. Audubon, 
from the original specimen, and there is now in the Academy of Sciences 
at Philadelphia a young male which was procured some years since by the 
late Mr. J. K. Townsend on the Columbia River. 
