Bos 
ONYCHOMYS. 167 
PaLE More Mouse. 
Type locality. Moki Pueblos, Apache County, Arizona. 
Geogr. Distr. State of Chihuahua, Mexico, into Arizona. 
Genl. Char. Size large, exceeded only by O. longipes of Concho 
County, Texas; ears, feet, and tail much as in O. melanophrys; fur 
full, long, and soft; orbital ring absent or inconspicuous; lanuginous 
tuft at base of ear well developed. 
Color. Above pale tawny cinnamon, palest anteriorly, and 
brightest on the flanks and rump, not noticeably mixed with black- 
tipped hairs; below pure white to the roots of hairs. 
Measurements. Total length, 168; head and body, 125; tail, 45; 
hind foot, 22; ear from crown, 12; from anterior root, 16.5. (Merr., 
l.c.) Skull: occipito-nasal length, 20; Hensel, 23; zygomatic width, 
15; interorbital constriction, 5; length of nasals, 11; palatal length, 
11; length of upper molar series, 4. 
124. ramona (Onychomys), Rhoads, Am. Nat., xxvil, 1893, p. 833. 
Elliot, Syn. N. Am. Mamm., 1901, p. 121. 
Ramona Mote Mouse. 
Type locality. San Bernardino Valley, California. 
Geogr. Distr. Lower California, Mexico, and southern California. 
Genl. Char. Larger than O. torridus, with larger ears. 
Color. Similar to O. longicaudus; above grayish vinaceous buff, 
dorsal part darker; beneath white; tail bicolor, dark above, lighter 
below. 
Measurements. Total length, 147; tail vertebre, 48; hind foot, 18; 
ear, 12. Skull: Hensel, 19; zygomatic breadth, 32.6; parietal breadth, 
11.5; interorbital constriction, 5; length of nasals, 10; from foramen 
magnum to incisive foramina, 13.4; length of upper molar series, 
alveolar border, 3.8; length of mandible, 15; height of coronoid 
process, 6.8. 
Fic. XXXVI. ONYCHOMYS TORRIDUS. TROPICAL MOLE MOUSE. 
125. torridus (Onychomys), Coues, Proc. Acad. Nat. Scien. Phil., 
1874, p. 183. Elliot, Syn. N. Am. Mamm., 1901, p. 122. 
