PEROMYSCUS. 209 
Geogr. Distr. State of Vera Cruz, Mexico. 
Genl. Char. Skull large, strong; .rostrum broad, inflated ante- 
riorly, bell-shaped; nasals pointed posteriorly and extending beyond 
the intermaxille; palate with slightly upturned posterior border; 
anterior palatine foramina very broad. 
Color. Above dark brown, washed with grayish, blackish on 
dorsal line; inclined to reddish on sides; under parts and hind feet 
grayish white; fore feet white; rufous patch on breast; ears and tail 
dark brown, naked; tip of tail sometimes whitish. 
Measurements. Total length, 248-282; tail vertebre, 123-145; 
hind foot, 26-29; ear, 20-23. Skull: total length, 35; basal length, 
29; zygomatic width, 16.7; interorbital constriction, 5; length of 
nasals, 8; length of upper tooth row, 5. (ex Type.) 
183, zarhynchus (Peromyscus), Merr., Proc. Biol. Soc. Wash., x11, 
1898, p. 117. 
LoNG-NOSED Mouse. 
Type locality. Tumbala, State of Chiapas, Mexico. 
Geogr. Distr. State of Chiapas, Mexico; limit of range unknown. 
Genl. Char. Size large; ears large; tail long, naked; hind feet 
long. Skull: rostrum elongated, bulle small; interparietal narrow. 
Color. Above dusky with a chestnut tinge; flanks seal brown or 
chestnut; under parts buff, with a chestnut tinge on breast, extend- 
ing in some specimens over the belly; tail above dusky, beneath 
yellowish white; hands and feet whitish. 
Measurements. Total length, 324; tail vertebre, 176; hind foot, 
35: 
a.—cristobalensis (Peromyscus), Merr., Proc. Biol. Soc. Wash., 
KM. LOOS, P.LL aR 
SAN CRISTOBAL FIELD MOUSE. 
Type locahity. San Cristobal, State of Chiapas, Mexico. 
Geogr. Distr. State of Chiapas, Mexico; range unknown. 
Genl. Char. Similar to P. zarhynchus, but lighter and more 
rufous. 
Color. Above dusky brown and fulvous mixed, darkest on dorsal 
line; cheeks and sides fulvous; under parts whitish, with chest tinged 
with chestnut; tail dusky above, yellowish white beneath; hands 
and feet whitish. 
Measurements. Total length, 322; tail vertebre, 170; hind foot, 
34. 
184. auritus (Peromyscus), Merr., Proc. Biol. Soc. Wash., x11, 1898, 
p. TO. 
