270 RHITHRODONTOMYS. 
Hispip Harvest Mouse. 
Type locality. Ameca, State of Jalisco, Mexico. Altitude, 
5,500 feet. 
Genl. Char. Size large; tail long; pelage coarse. Skull large; 
braincase flattened; nasals not so long as premaxille; bullae small; 
length of upper molar series, 3.7. 
Color. Above yellowish fulvous lined with black; sides brighter 
fulvous; beneath white, as are also the sides of nose and upper lip; 
tail above dusky, whitish beneath; hands buffy; feet grayish. 
Measurements. Total length, 233; tail vertebra, 143; hind 
foot, 22. 
267. griseiflavus (Keithrodontomys!), Merr., Proc. Wash. Acad. 
Scien., Wt); 1961, p..ese: 
AMECA Harvest Mouse. 
Type locality. Ameca, State of Jalisco, Mexico. Altitude, 
4,000 feet. 
Genl. Char. Similar to R. hirsutus, but smaller. 
Color. Above buffy gray, grading into buffy fulvous on hind 
back, and lined with black; sides pale golden fulvous; beneath white, 
sometimes tinged with buffy; pectoral spot and axilla fulvous; lips 
and chin, hands and feet whitish; ankles dark; tail above brownish, 
beneath whitish. 
Measurements. Total length, 169; tail vertebra, 94; hind foot, 22. 
a.—helvolus (Retthrodontomys!), Merr., Proc. Wash. Acad. Scien., 
Tt; \TOOX, Pp. S54. 
Oaxaca Harvest Mouse. 
Type locality, Oaxaca City, State of Oaxaca, Mexico. 
Genl. Char. Similar to R. grisetflavus, but redder. 
Color. Above on back and sides orange fulvous, sparsely lined 
with black, but making a dorsal line to middle of back; throat and 
lips white, under parts gray; tail brown above, whitish beneath; 
hands and feet whitish; ears brown. 
Measurements. Total length, 188; tail vertebra, 111; hind foot, 20. 
268. levipes (Reithrodontomys!), Merr., Proc. Wash. Acad. Scien., 
iil, 2OOr, DP. BER: 
SAN SEBASTIAN Harvest Mouse. 
Type locality. San Sebastian, State of Jalisco, Mexico. Altitude, 
3,000 feet. 
Genl. Char, Size medium; tail rather long; hair coarse. 
Color. Above fulvous lined with black; sides bright oranze ful- 
vous; beneath pale fulvous; hands and feet whitish; tail dark brown 
above, paler beneath; ears brown. 
