166 ONYCHOMYS, 
Fig. 82. ONYCHOMYS TORRIDUS. 
No. 7or Field Columbian Mus, Coll. Twice nat, size. 
UpPER TOOTH ROW. LOWER TOOTH ROW. 
Enlarged ro times. Enlarged 10 times. 
123. melanophrys (Onychomys), Merr., N. Am. Faun., No. 2, 1889, 
p. 2, and No. 3, 1890, p. 61. Elliot, Syn. N. Am. Mamm., 
1901, Pp. 120. 
BLACK-BROWED MoLE MOusE. 
Type locality. Kanab, Kane County, Utah. 
Geogr. Distr. State of Sonora, Mexico, north to Utah. 
Genl. Char. Size of O. leucogaster; ear a little smaller; hind foot 
densely furred to base of toes. 
Color. Above rich tawny cinnamon, well mixed with black- 
tipped hairs on the back, and brightest on the sides; a distinct black 
ring around the eye, broadest above. ‘‘This ring is considerably 
broader and more conspicuous than the very narrow ring of leuco- 
gaster.”’ 
Measurements. Total length,,154; tail, 41; hind foot, 21; ear 
from crown, 10. Skull: Hensel, 22.3;_ zygomatic breadth, 15.4; 
interorbital constriction, 5.2; length of nasals, 10.7; length of upper 
molar series, 4.8; length of mandible, 15.7. (Merr., 1. c.) 
a.—pallescens (Onychomys), Merr., N. Am. Faun., No. 3, 1890, 
p. 61. Elliot, Syn. N. Am. Mamm., rgor, p. rar. 
