610 
U. S. P. R R. EXP. AND SURVEYS-ZOOLOGY-GENERAL REPORT. 
The species I here describe appears to he restricted to the coast of California, as, of the 
numerous small hares in the collection before me, from Texas and New Mexico, all belong to 
another species. It is possible that, in referring to Lepus baclimani as abundant in Texas, 
Audubon and Bachman had this other species in view, which I have considered the same with 
L. artemisia. 
List of specimens. 
Catalogue number. 
J Corresponding No. of skull. 
m 
Locality. 
When 
collected. 
Whence and how 
obtained. 
Nature of 
specimen. 
Measurements. 
Collected by— 
Nose to occip. I 
Nose to tail. 
Tail to end of verteb. j 
| Tail to end of hairs. | 
| Length of hind foot. | 
j Length of skull. 
| Width of skull. 
| Height of ear, ant. j 
| Height of ear, post. | 
309 
Presidio, Cal., 
Lt. W. P. Trowbridge. 
Skin •.., 
3.00 
14.50 
1.50 
2.25 
3.17 
2.75 
3.08 
1163 
2045 
San Francisco, Cal. 
Lt. Williamson. 
..do. 
3.20 
15.00 
.;.. | 
3.05 
2.66 
1.34 
3.00 
Dr. Newberry.. 
1591 
San Diego, Cal... T _ 
Feb. 19,1856 
Dr. J. F. Hammond .. 
1594 
Q 
Dec. 28, 1855 
3.33 
14.50 
3.15 
2.80 
1596 
11,00 
2.00 
3.25 
1 
LEPUS TROWBRIDGII, Baird. 
Lepus trowbridgii, Baird, Pr. A. N. Sc. Phila. VII, April 1855, 333. 
Sp, Ch. —Size small, less that of L. auduboni. Head small. Ears about equal to it in length. Tail very short, almost 
rudimentary ; hind feet very short, well furred, considerably shorter than the head. Color above, yellowish brown and dark 
brown, beneath, plumbeous gray. Sides not conspicuously different from the back, but paler. Back of neck pale rusty. Ears 
grayish and black on the external band ; ashy gray elsewhere, with little indication of darker margin or tip. 
No. 310. Size considerably smaller than L. sylvaticus. Head small, orbit small. Ears about 
as long as the head. Tail very short, almost rudimentary. Hind feet very short, densely 
furred. Fur of moderate length, softer than in L. sylvaticus. 
The upper parts generally are yellowish brown, paler than in L. sylvaticus , mixed with dark 
brown (not black). The sides, with the throat and chest, are paler, not conspicuously different 
from the back. The prevailing tint of the under parts is ashy, mixed with lead color and gray, 
the former predominating ; the under part of the head ashy gray. The sides and the tip of the 
snout are ashy. The nape and back of tbe neck are light rufous; a very slight tinge of the 
same on the legs and upper surface of the hind feet, which are whitish. The ears are quite 
plainly colored. On their dorsal surface they are rusty at the extreme base, then ashy ; the 
external bands mixed gray yellowish, red, and brown, the prevailing tint, however, grayer than 
on the back. There is very little, if any, indication of a duskier margin anteriorly, where the 
fringe is grayish. On the concavity of the ear the hairs generally are grayish; somewhat 
variegated on the internal band. 
The fur is everywhere lead color or dark ash at the base; on the back generally it shades into 
a kind of chestnut brown ; it is then yellow brown and slightly tipped with brown. The sub¬ 
terminal dark ring is thus a chestnut brown, not black as in L. auduboni , and has a lighter 
shade of the same between it and the ash color. On the sides the arrangement is somewhat 
