104 
U. S. P. R. R. EXP. AND SURVEYS—4?TH PARALLEL. 
Specimens of this species were obtained at Steilacoom (7, 133), and at Vancouver. Two 
white winter skins and one summer (140, 144, 142) of this, or a closely allied species, were 
obtained from the latitude of 54° 40'. 
LEPUS CAMPESTRIS, Bach. 
Prairie Hare, 
us campestris, Bach. J. A. N. Sc Phila. VII, 11 , 1837, 349. —Ib. VIII, i, 1839, 80. 
Baird, Gen. Rep. Mammals, 1857, 585. 
Lepus townsendii, Bachman, J. A. N. Sc. Phila. VIII, i, 90 ; pi. 11. 
Acd. & Bach. N. Am. Quad. I, 1849, 25 ; pi. iii. 
Sp. Ch. —Larger than Lepus americanus. Ears about one-fifth longer than the head. Fur soft and full, especially in winter. 
Tail as long as the head. Hind feet considerably longer than the head ; somewhat longer than the ears. 
In summer, back, rump, sides of limbs, external and internal bands of the ear, and the throat, yellowish gray, varied more 
or less with brown. Beneath, white. Tail entirely white, above and below; in some specimens only with a faint wash of ash 
above. Nape and interior surface of ears white, except as stated ; the latter tipped with black. 
In winter, pure white all over, with a yellowish tinge. Ears white, tipped with brown ; the external and internal bands 
rusty gray. Fur on the ears and elsewhere much longer and fuller than in summer. Fur on the upper part and sides pure 
white on the basal half. 
Missouri river, at Fort Union. No. 29 was obtained on Burnt river, of Snake river, 0. T., 
on its left bank, one hundred miles north of Fort. Boise. It was a male, killed October 5 ; 
weight, pounds ; stretch, 38|; tip of snout to end of tail, 25f ; tibia, 6 ; femur, 5 ; heels 
to end of toe, 5|; from shoulder joint to tip of toes, 10. 
This species is supposed to turn white in winter. 
LEPUS CALIFORNICUS, Gray. 
California Hare. 
Lepus californicus, Gray, Charlesw Mag. N. H. I, 1837, 586, (named only in Pr. Zool. Soc. Lond. IV, 1836, 88.) 
Aud. & Bach. N. Am. Quad. Ill, 1853, 53 ; pi. cxii. 
Baird, Gen. Rep. Mammals, 1857, 594 
Sp. Ch. —Size large. Ears and hind feet much longer than the head, (the ears longest.) Tail as long as the head. Limbs 
elongated; not very densely furred. Fur rather soft. Upper parts light cinnamon and black. Sides of the body anteriorly, 
chest, and outer surfaces of limbs cinnamon, with a slight mixture of black. Under parts whitish cinnamon on the median 
line, darker externally and on the inner surfaces of the limbs. Tail dull cinnamon ; the upper part and a line running up a 
short distance on the rump, black. Extremity of the dorsal surface of the ear, with the adjacent edges, black. Internal and 
external bands, dusky ; rest of the dorsal surface of the ear, with the posterior edge, fulvous white ; rest of the external surface, 
with the anterior fringe, pale cinnamon. Under surface of the head lighter than the chest. Bases of the hairs and fur above, 
grayish white ; below, white ; on the sides, light plumbeous. Nape, dusky grayish. 
Fort Jones, California, (70.) 
? LEPUS CALL OTIS, Wagler. 
Jackass Rabbit; Texas Hare; Black-tailed Hare. 
Lepus callotis, Wagler, Nat. Syst. Amph. 1830, 25 .—Ib. Isis, 1831, 511. 
Aud. & Bach. N. Am. Quad. II, 1851,95 ; pi. lxiii. 
Baird, Gen. Rep. Mammals, 1857, 590. 
Sp. Ch. —Rather smaller than the European hare. Ears very long and broad ; nearly one-third longer than the head and 
one-fifth longer than the hind foot. Hair on the buttocks short and close. Color above, yellowish gray, blotched and lined 
with black. Upper surface of tail and central line of rump, black ; tail beneath, grayish white. Sides of rump, clear ash 
gray. Legs, ashy. Nape, black, (sometimes whitish?) Beneath, dull whitish, with a yellowish brown color on the throat. 
A light ring round the eye. Tip of the posterior surface of the ear black. 
Boise river, Oregon Territory, September 27, 1854.—27, 28. 
No. 27.—Male; September 27th. Dimensions.—Stretch, 26^. Fore arm, 3f ; tibia, 5|-; 
femur, 4^-. Ear from plane of occiput, 5J. Heel to end of toes, 4-J. From snout to tip of 
tail, 22|. From shoulder joint to tip of fore foot, 8 inches. 
