438 LEPUS. 
chest and fore legs pale yellowish brown; hind feet whitish; tail above 
black, this color extending on the rump and dividing the gray sides; 
beneath pale buff; ears dark brown, fringed anteriorly with white, 
and with a fulvous white border posteriorly, tips brownish black. 
Measurements. Total length, 545; tail vertebre, 107; hind foot, 
161; ear from notch, 125; from crown, 155. Skull: occipito-nasal 
length, 80; Hensel, 54; zygomatic breadth, 41; interorbital constric- 
tion, 17; lateral length of nasals, 32; median length of nasals, 26; 
posterior width of nasals, 18; anterior width of nasals, 11; length of 
upper tooth row, 13; length of lower jaw to end of incisors, 61; height 
at coronoid process, 36. 
a.—xanti (Lepus), Thomas, Ann. Mag. Nat. Hist., 7th Ser., 1, 1898, 
Pp. 45. 
LOWER CALIFORNIA JACK RABBIT. 
Type locality. Santa Anita, Lower California, Mexico. 
Geogr. Distr. Cape Region of Lower California, Mexico. 
Genl. Char. Similar to L. californicus, but smaller and grayer. 
Color. General color like pale L. calijornicus, with belly tinged 
with darkish buff; ears gray outside, white inside; anterior fringe 
white with black hairs intermixed; nape smoky gray or black. 
Measurements. Total length, 540; tail, 63; hind foot, 120; ear 
from notch, 125. Skull: ‘greatest length, 88; basilar length, 69; 
greatest breadth, 41; diagonal length of nasals, 38; greatest breadth 
of nasals, 17.6; intertemporal breadth with ledges, 22.6; without 
ledges, 16.7; breadth of palatal bridge, 6; length of molar series, 
alveolar border, 14.7.” 
453. insularis (Lepus), Bryant, Proc. Calif. Acad. Scien., 2d Ser., 11, 
LOOT ps (92, 
edwardst, St. Loup, Bull. Mus. Paris, 1895, p. 5. 
ESPERITO SANTO ISLAND JACK RABBIT. 
Type locality. Esperito Santo Island, coast of Lower California, 
Mexico. 
Geogr. Distr. Known only from type locality. 
Genl. Char. Size equal to that of L. californicus. 
Color. Above black; under parts pale vinaceous cinnamon, 
darker on sides; cheeks gray; chin and orbital region grayish white; 
throat cinnamon rufous; limbs and fore feet cinnamon rufous; hind 
feet grayish white; toes brownish; tail black above, beneath cin- 
namon rufous; ears blackish gray, tips black, inferior margin white. 
Measurements. Total length about 450; tail, 100; hind foot, 
t1o (dried skin). ; 
