An Annotated Check List of the Mammals of Michoacan, Mexico Part 9

=Peromyscus maniculatus labecula= Elliot

Deermouse; Spanish, Raton Cuatralvo

_Peromyscus labecula_ Elliot, Field Columb. Mus., zool. ser., 3:143, February (March?), 1903, type from Ocotlan, Jalisco.

_P[eromyscus]. s[onoriensis]. labecula_, Osgood, Proc. Biol.

Soc. Was.h.i.+ngton, 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: Tancitaro, 7; 11 mi. W Zamora, 5,750 ft., 3; 2 mi. W Patzcuaro, 7,700 ft., 4; 3-1/2 mi. S Patzcuaro, 7,800 ft., 2; 4 mi. S Patzcuaro, 7,800 ft., 3; 5 mi.

S Patzcuaro, 7,800 ft., 24; 9 mi. SE Patzcuaro, 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 Tancitaro than in those from Patzcuaro.

=Peromyscus perfulvus= Osgood

Marsh Mouse; Spanish, Raton Brenero

_Peromyscus perfulvus_ Osgood, Jour. Mamm., 26:299, November 14, 1945, type from 10 kilometers west of Apatzingan, 1,040 ft., Michoacan.

_Range._--Known only from the semitropical Life-zone in western Michoacan.

_Specimens examined_, 5: nos. 100593, 100595, 100597, 100598, and 100600, all from 1 mi. E and 6 mi. S Tacambaro, 4,000 ft.

_Remarks._--J. R. Alcorn took these specimens between fields of sugar cane in tall (5 ft. high) gra.s.s growing in a belt 10 feet or so wide along side a stream, which a person could step across. The one adult, no. 100597, was recognized at the time of capture as different from any other species known to us, by reason of the long, unicolored, spa.r.s.ely-haired tail and nearly clear Cinnamon Rufous color above, white underparts, white feet, and dark brown ears. The four other specimens in darker immature pelage are plumbeous and cinnamon whereas immature individuals of comparable age of _Peromyscus bandera.n.u.s_ caught in the same place are plumbeous above and lack the cinnamon color. The immature animals of the two species differ in color more than do the adults. Osgood (1945:300) has recorded eleven specimens from the type locality. Our one adult weighs 52.4 grams.

=Peromyscus boylii evides= Osgood

Brush Mouse; Spanish, Raton de Chaparral

_Peromyscus spicilegus evides_ Osgood, Proc. Biol. Soc.

Was.h.i.+ngton, 17:64, March 21, 1904, type from Juquila, Oaxaca.

_Peromyscus boylei evides_ Osgood, N. Amer. Fauna, 28:152, April 17, 1909.

_Range._--Northern part of state.

_Specimens examined_, 22: nos. 100450-100471, distributed by localities as follows: 1-1/2 mi. SSE Tacambaro, 5,700 ft., 16; 1-3/4 mi S Tacambaro, 5,700 ft., 1; 1 mi. E and 2-1/2 mi. S Tacambaro, 4,700 ft., 5.

_Remarks._--Osgood (1909:153) recorded 31 specimens from Los Reyes.

Weights recorded by the collectors of our specimens for 13 males from the vicinity of Tacambaro, are 24.8 (17.2-37.1) and for 9 females 25.0 (20.0-31.5) grams. These weights include those of subadults as well as those of adults.

=Peromyscus boylii levipes= Merriam

Brash Mouse; Spanish, Raton de Chaparral

_Peromyscus levipes_ Merriam, Proc. Biol. Soc. Was.h.i.+ngton, 12:123, April 30, 1898, type from Mount Malinche, Tlaxcala.

_Peromyscus boylei levipes_, Osgood, N. Amer. Fauna, 28:153, April 17, 1909.

_Range._--Probably central-eastern part of state.

_Remarks._--Osgood (1909:155) records one specimen of this subspecies from Patzcuaro.

=Peromyscus hylocetes= Merriam

Woods Mouse; Spanish, Raton Ocotero

_Peromyscus hylocetes_ Merriam, Proc. Biol. Soc. Was.h.i.+ngton, 12:124, April 30, 1898, type from Patzcuaro, 7,000 feet, Michoacan; Osgood, N. Amer. Fauna, 28:159, pl. 3, fig. 8, April 17, 1909.

_Range._--Mountainous parts of state.

_Specimens examined_, 24: nos. 100472, 100542, both from 9 mi. SE Patzcuaro at 8,000 feet alt.i.tude; 1358-1365 of Bernardo Villa R., from Cerro Curitzaran, 3.5 km. NNW San Juan, 2,200 M.; 52178, 52185, 52187-52192, 52197, 52198, 52203, 52213-52215, from Tancitaro at elevations of 6,000 to 10,000 ft.

_Remarks._--All of the specimens were taken in pine forest. The old male from nine miles southeast of Patzcuaro weighs 43.7 grams and the younger male from there 35 grams. The adults from Tancitaro have longer diastemae and some have the braincase more prolonged posteriorly, than in specimens from the vicinities of San Juan and Patzcuaro but individual variation is considerable and we are unable to differentiate some of the adults from Tancitaro from those from elsewhere.

=Peromyscus truei gratus= Merriam

Pinon Mouse; Spanish, Raton Pinonero

_Peromyscus gratus_ Merriam, Proc. Biol. Soc. Was.h.i.+ngton, 12:123, April 30, 1898, type from "Tlalpam," D. F.

_Peromyscus sagax_ Elliot, Field Columb. Mus., Chicago, zool.

ser., 3:142, February, 1903, type from La Palma, Michoacan.

_Peromyscus pavidus_ Elliot, Field Columb. Mus., Chicago, zool. ser., 3:142, February, 1903, type from Patzcuaro, Michoacan.

_Peromyscus zelotes_ Osgood, Proc. Biol. Soc. Was.h.i.+ngton, 17:67, March 21, 1904, type from Querendaro, Michoacan.

_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 Patzcuaro, 6,800 ft., 1; 3 mi. NW Patzcuaro, 6,700 ft., 10; 1-1/2 mi. NW Patzcuaro, 6,700 ft., 1; 2 mi.

W Patzcuaro, 6,700 ft., 3; Patzcuaro (Chicago Nat. Hist. Mus.), 5.

_Remarks._--The ear measured from the notch is shortest, 19 (18-21), at Zamora, intermediate, 21 (19-23), at Patzcuaro, and longest, 21.8 (20-23), at the type locality of _gratus_ in the Valley of Mexico.

=Peromyscus melanophrys zamorae= Osgood