DIPODOMYS. 345 
352. deserti (Dipodomys), Steph., Am. Nat., xx1, 1887, p. 42, pl. v. 
Elliot, Syn. N. Am. Mamm., 1901, p. 235. 
DESERT KANGAROO Rat. 
Type locality. Mojave River, near San Bernardino County, 
California. 
Geogr. Distr. State of Sonora and Lower California, Mexico, 
north to Mojave and Colorado deserts, southeastern California. 
Genl. Char. Large; colors pale; tail longer than head and body; 
mastoids greatly developed. 
Color. Above pale yellowish brown, hairs plumbeous at base; 
legs, feet, and under parts white; tail white, with a pale brown dorsal 
stripe, growing darker towards end, and extending from near base 
to white tip; white spot over eye and behind ear; white thigh stripe. 
Measurements. Total length, 133; tail vertebrx, 204; hind foot, 
52. Skull: total length, 42; Hensel, 36; zygomatic width, 21; inter- 
orbital constriction, 13; mastoid width, 28.5; length of nasals, 15; 
width of parietal anteriorly, 17.5; palatal length to incisive foramina, 
7; length of upper molar series, 5; length of mandible, 18. 
353. spectabilis (Dipodomys), Merr., N. Am. Faun., No. 4, 1890, 
p. 46. Elliot, Syn. N. Am. Mamm., 1901, p. 235. 
HANDSOME KANGAROO Rat. 
Type locality. Dos Cabezos, Cochise County, Arizona. 
Geogr. Distr. States of Sonora and Chihuahua, Mexico, and 
portions of Texas and Arizona, eastward to Sierra Blanca, Texas. 
Genl. Char. Size large; tail nearly twice the length of head and 
body; mastoids not meeting behind parietals; maxillary bridge of 
orbit broad. 
Color. Above ochraceous buff, lined with black, sides paler; top 
of head and back darkest; facial crescent crossing nose black; hip 
patch ochraceous; hind leg white above, dusky below; dorsal stripe 
of tail dusky for basal half, followed by a broad black band, termi- 
nating in a long white brush; ventral stripe dusky, the two meeting 
about two-thirds the length of tail from base, the lateral white stripes 
disappearing. 
Measurements. Total length, 355; tail vertebre, 211; pencil, 30; 
hind foot, 56; ear, 17.5. Skull: total length, 46; Hensel, 31; zygo- 
matic width, 25; interorbital constriction, 15; mastoid breadth, 28; 
length of upper molar series, 5.5; length of nasals, 10; length of 
mandible, 21. 
354. merriami (Dipodomys), Mearns, Bull. Amer. Mus. Nat. Hist., 
1890, p. 290. Elliot, Syn. N. Am. Mamm., i1go1, p. 232. 
