_Peromyscus labecula_ Elliot, Field Columb. Mus., zoAśl. ser.,
3:143, February (March?), 1903, type from Ocotlan, Jalisco.
_P[eromyscus]. s[onoriensis]. labecula_, Osgood, Proc. Biol.
Soc. Washington, 17:57, March 21, 1904.
_Range._--Northwestern part of state.
_Specimens examined_, 59: nos. 51402-51406, 52175, 52176,
100407-100447, 100484; and 1366-1368, 1370-1372, 1374-1377, of
Bernardo Villa R., distributed by localities as follows: TancA-taro, 7;
11 mi. W Zamora, 5,750 ft., 3; 2 mi. W PAitzcuaro, 7,700 ft., 4; 3-1/2
mi. S PAitzcuaro, 7,800 ft., 2; 4 mi. S PAitzcuaro, 7,800 ft., 3; 5 mi.
S PAitzcuaro, 7,800 ft., 24; 9 mi. SE PAitzcuaro, 8,000 ft., 6; 1-1/2
km. N San Juan, 2,250 M., 3; 1 km. NNE San Juan, 2,250 M., 7.
_Remarks._--The zygomatic arches are less widely flaring in specimens
from TancA-taro than in those from PAitzcuaro.
=Peromyscus perfulvus= Osgood