LEPUS, 421 
band clay color; ventral surface yellowish white; upper surface of hind 
feet creamy white; ears externally grayish brown tinged with pale 
russet, blackish on apical third. 
Measurements. Total length, 450; tail vertebra, 42; hind foot, 80; 
ear from crown (dry skin), 62. Skull: occipital-nasal length, 78.5; 
basal length, 63; zygomatic width, 53.2; interorbital constriction, 17; 
mastoid breadth, 28; width of braincase, 25; length of nasals, 36; 
palatal bridge, 7.5; length of upper tooth row, 6.5; length of lower jaw, 
55; height of condyle, 35. 
432. parvulus (Lepus), Allen, Bull. Am. Mus. Nat. Hist., 1904, p. 34. 
LitTLE Hare. 
Type locality. Apam, southern part of State of Hidalgo, Mexico. 
Color. Above pale buff varied with black, slightly grayish on 
rump; chin, throat, and central ventral surface yellowish white; pec- 
toral band broad, pale rusty brown; nape pale ferrugineous; sides of 
head buffy brown; upper surface of the feet pale rusty; hind feet deep 
buff; ears externally buffy grayish brown, internally pale yellowish 
brown with a deep buff edge; tail above blackish, tips of hairs buffy 
gray. 
Measurements. Total length, 390; hind foot, 75; ear 65. Skull: 
occipito-nasal length, 65; basal length, 54.5; zygomatic width, 33; 
interorbital constriction, 18.4; mastoid breadth, 27; width of brain- 
case, 25; length of nasals, 25; posterior width of nasals, 13.5; palatal 
bridge, 5.2; length of upper tooth row, ro; length of palatal foramina, 
14.5; length of mandible, 43; height at angle, 25.5. 
433 insolitus (Lepus), Allen, Bull. Amer. Mus. Nat. Hist., 1890, 
p. 189. 
PLAINS HARE. 
Type locality. Plains of Colima, State of Jalisco, Mexico. 
Geogr. Distr. State of Jalisco, Mexico. 
Genl. Char. Similar to L. floridanus, but larger and paler. 
Malar with a deep groove on the outer surface of the anterior half; 
postorbital processes not fused with the braincase, merely touching it. 
Color. Upper parts sandy buff and black; sides grayish; nape 
and fore legs externally rufous; breast yellowish brown; rest of under 
parts white; hind leg externally yellowish brown; fore feet brownish 
yellow; hind feet white, as is also the anterior edge of leg; orbital 
ring buffy gray; tail and rump pale rusty brown and black; ears 
brownish gray, edge and tip blackish. 
Measurements. Total length, 440; tail to end of hairs, 40; hind 
foot, 92; ear from crown, 78. Skull: total length, 83; basilar length, 
66; greatest width, 39; interorbital constriction, 21; length of nasals, 
