206 PEROMYSCUS. 
178. tehuantepecus (Peromyscus), Merr., Proc. Biol. Soc. Wash., x11, 
L898, Pp. 122: 
TEHUANTEPEC FieLp MOUSE. 
Type locality. Tehuantepec, State of Oaxaca, Mexico. 
Geogr. Distr. State of Oaxaca, Mexico; range undetermined. 
Genl. Char. Size medium; similar to P. mexicanus, but paler. 
Color. Above pale fulvous lined with black, darkest on back; 
cheeks and sides buffy fulvous; under parts whitish, with a salmon 
pectoral spot, and sometimes tinged with buff; tail dusky, sides 
orange chrome; hands and feet whitish. 
Measurements. Total length, 243; tail vertebre, 124; hind 
foot, 26. 
179. oaxacensis (Peromyscus), Merr., Proc. Biol. Soc. Wash., x1, 
LOOS, Px 1223 
Oaxaca FIELD MOUSE. 
Type locality. Cerro San Felipe, State of Oaxaca, Mexico. Aillti- 
tude, 10,000 feet. 
Geogr. Distr. State of Oaxaca, Mexico; limits of range unknown. 
Genl. Char. Size medium; tail long. Skull similar to that of 
P. mexicanus, but bulle larger, and first lower molar with a “‘supple- 
mentary enamel loop on outer side in front of posterior cusp.” 
Color. Upper parts fulvous, darkest on dorsal region; orbital 
ring dusky; cheeks and sides cinnamon rufous; under parts and 
hands white; feet white, their basal portion dusky; tail above dusky, 
beneath white. 
Measurements. Total length, 242; tail vertebre, 122; hind 
LOOb; 27. 
180. comptus (Peromyscus), Merr., Proc. Biol. Soc. Wash., xu, 
LOQO, Pp. 120. 
CHILPANCINGO MOUSE. 
Type locality. Mountains near Chilpancingo, State of Guerero, 
Mexico. 
Geogr. Distr. State of Guerero, Mexico; range unknown. 
Genl. Char. Size large; similar to P. auritus, but more fulvous; 
tail long. 
Color. Upper parts golden fulvous lined with black, dorsal 
region darkest; orbital ring blackish; under parts white, some speci- 
mens tinged with yellowish; wrists and ankles dusky; tail dusky 
above, whitish beneath; hands and feet whitish. 
Measurements. Total length, 285; tail vertebra, 150; hind 
LOOG,) 3 
