_Peromyscus gratus_ Merriam, Proc. Biol. Soc. Washington,
12:123, April 30, 1898, type from "Tlalpam," D. F.
_Peromyscus sagax_ Elliot, Field Columb. Mus., Chicago, zoAśl.
ser., 3:142, February, 1903, type from La Palma, MichoacAin.
_Peromyscus pavidus_ Elliot, Field Columb. Mus., Chicago,
zoAśl. ser., 3:142, February, 1903, type from PAitzcuaro,
MichoacAin.
_Peromyscus zelotes_ Osgood, Proc. Biol. Soc. Washington,
17:67, March 21, 1904, type from QuerA(C)ndaro, MichoacAin.
_Peromyscus truei gratus_, Osgood, N. Amer. Fauna, 28:173,
April 17, 1909.
_Range._--Northern part of state.
_Specimens examined_, 42: nos. 100448, 100473-100483, 100485-100509,
8700, 8702, 8703, 8896, 8897, distributed by localities as follows: 8
mi. N Zamora, 5,500 ft., 2; 11 mi. W Zamora, 5,750 ft., 11; 6-1/2 mi.
W Zamora, 5,950 ft., 4; 6 mi. W Zamora, 5,950 ft., 4; Rio Duaro, 9 mi.
E Zamora, 5,500 ft., 1; 3 mi. N PAitzcuaro, 6,800 ft., 1; 3 mi. NW
PAitzcuaro, 6,700 ft., 10; 1-1/2 mi. NW PAitzcuaro, 6,700 ft., 1; 2 mi.
W PAitzcuaro, 6,700 ft., 3; PAitzcuaro (Chicago Nat. Hist. Mus.), 5.
_Remarks._--The ear measured from the notch is shortest, 19 (18-21),
at Zamora, intermediate, 21 (19-23), at PAitzcuaro, and longest, 21.8
(20-23), at the type locality of _gratus_ in the Valley of MA(C)xico.
=Peromyscus melanophrys zamorae= Osgood