584 • U. S. P. R. R. EXP. AND SURVEYS—-ZOOLOGY—GENERAL REPORT. 
The species is readily distinguishable from L. americanus by its smaller size and shorter ears, 
which are more reddish internally. The tarsi are much shorter. The colors are not dissimilar 
hut the L. ivashingtonii has much softer fur, and a richer, darker, reddish brown. 
From L. sylvaticus it is distinguished by its longer tarsi and ears ; the latter bordered with 
black behind ; the fur is reddish brown not yellow brown ; there is no gray on the sides any¬ 
where, and the nape is not different from the hack, as in L. sylvaticus , palustris , artemisia , and 
other species. 
Since the preceding description was prepared, Dr. Suckley received several imperfect skins 
of hares from the latitude of 54° 40', which, in all probability, belong to the same species. 
One in summer dress appears to he immature, and although the general appearance is as 
described, yet there is rather more yellow in the cinnamon color. The feet and ears are wanting. 
The other skins, two in number, are similarly mutilated. In these the color externally is snowy 
white. The under fur, however, is light plumbeous for more than its basal half, darker 
towards the end ; it is then of a pale yellowish brown, of two shades, the outer half abruptly 
and appreciably darker, this color forming the tip of the fur. The white is due to the long 
hairs which are pure white to the roots. On the belly the hairs are without the brown, although 
the basal plumbeous is quite distinct. In this respect the colors are very similar to those of 
L. americanus , although the fur is longer. 
In all the specimens I have seen, the portion of the pads under the toes is of a brownish 
white, sharply and distinctly lighter than the remaining portion, which is strongly tinged with 
sooty. This may he considered a pretty good specific mark. 
As already stated, this species is very similar to L. americanus , and should the more northern 
individuals turn white in winter, the resemblance will be still greater. The color, in perfect 
specimens, is much the same. The size of L. ivashingtonii is, however, much less ; the tarsi 
especially. There is considerably more black at the tip of the ear, and its dorsal surface is 
light cinnamon, instead of being nearly white. In fact, there is scarcely any white on the ear, 
this being confined to the extreme margin, instead of having the fringe and much of the dorsal 
surface of this color. 
Thus far, this species has only been found in Washington Territory, on and west of Puget’s 
Sound, unless, as is highly probable, Dr. Suckley’s specimens from the latitude of 54° 40' 
should belong here. It constitutes the western representative of L. americanus. 
