NEOTOMA. 285 
Measurements. Total length, 333; tail vertebre, 170; hind foot, 
aa Gar, 25. 
b.—angusticeps (Neotoma), Merr., Proc. Biol. Soc. Wash., 1x, 1894, 
p. 127. Ellot, Syn. N. Am. Mamm., 1901, p. 162. 
NARROW-HEADED Woop Rat. 
Type locality. Southwest corner Grant County, New Mexico. 
Geogr. Distr. Northern Mexico (State of Chihuahua), and south- 
western New Mexico. : 
Genl. Char. Similar to N.1. albigula; ears smaller; color more 
fulvous. 
Color. Above fulvous; ochraceous buff on head, lined with black; 
feet and under parts creamy white to roots of hair, except on belly, 
where the base of hairs is plumbeous; tail grayish brown above, 
white beneath. 
Measurements. Total length, 335; tail vertebre, 150; hind foot, 
33; ear, 25. Skull: basal length, 42; Hensel, 39.5; zygomatic width, 
24; interorbital constriction, 6. 
e.—albigula (Neotoma), Hartley, Proc. Calif. Acad. Scien., 2d Ser., 
1894, p. 157, pl. xu. Elliot, Syn. N. Am. Mamm., 1901, p. 162. 
WHITE-THROATED Woop Rat. 
Type locality. Vicinity of Fort Lowell, near Tucson, Pima County, 
Arizona. 
Geogr. Distr. State of Sonora, Mexico, north into Arizona. 
Genl. Char. Similar to both N. intermedia and N. mexicana, but 
the yellow ground color of upper parts and sides is deeper and the 
general color is lighter. 
Color. .Above pale yellowish brown mixed with black; central 
line on back darker; sides pale yellow mixed with a pale brown; feet 
dusky white; under parts grayish white, except throat, which is 
pure white to base of hairs; tail blackish brown above, soiled white 
beneath; ears light brown on naked part. 
Measurements. Total length, 342; tail vertebre, 153; hind foot, 
32. Skull: occipito-nasal length, 44; Hensel, 37; zygomatic width, 
23; interorbital constriction, 5; length of nasals, 16; palatal length, 
20; length of upper tooth row, alveolar border, 6.5; length of man- 
dible, angle to alveolus of incisor, 20.5. 
d.—durange (Neotoma), Allen, Bull. Am. Mus. Nat. Hist., 1903, 
p. 602. 
Duranco Woop Rat. 
Type locality. San Gabriel, State of Durango, Mexico. Altitude, 
7,000 feet. 
