610 U. S. P. R R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
The species I here describe appears to be 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 bachmani as abundant in Texas, 
Audubon and Bachman had this other species in view, which I have considered the same with 
L. artemisia. : 
Iist of specimens. 
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309 |....0. eee! Presidio, Cal.....+.|scceee ee ecvece Lt. W. P. Trowbridge.| Skin ..../3.00 14,501,50'2.25 3 LF) ooes| over 20 %0\3: 08) ve cses cone eee 
1163 | 2045 |....] San Francisco, Cal. |.... esses. eee Lt. Williamson ......|..d0...... 3.20 15,00....|..../3.052,.66)1.34 3.00). Dr. Newberry... 
LEGIT Bee aar ».-.| San Diego, Cal..... Feb. 19, 1856 | Dr. J. F. Hammond ..|..do...... sereleeeeelees|seee lees |seeelenee | ceeeleecalenenenas tens ees 
1594 |...... S)i Res d0sccaccsesene Dec. 28, 1855 | ........ dOsacc-csceese lapd0sceeee 3,93} AAS50) | o-(B. US| scan |oeetteoes 2280 lvene|seeiemenne sass 
1596 |....0. Gillessoer MOrMeoeiseeenl| sacet losses nae lace LOnsameelone«ci| SadOueiseeell eteey eLLN 00 2.00)... 3.25] secveenees seeees 
LEPUS TROWBRIDGII, Baird. 
Lepus trowbridgii, Barrp, Pr. A. N. Sc. Phila. VII, April 1855, 333. 
Sp, Cu.—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 Z. 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 ZL. sylvaticus. ~ 
The upper parts generally are yellowish brown, paler than in Z. 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 
snoutare ashy. The nape and back of the 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 LZ. auduboni, and has a lighter 
shade of the same between it and the ash color. On the sides the arrangement is somewhat 
