Vou. IIT] GRINNELL—MAMMALS OF CALIFORNIA 307 
Type locality—Middle Fork American River, Eldorado 
County, California, near Auburn (fide Osgood, N. Amer. 
Fauna, 28, 1909, p. 142). 
Synonym—Sitomys robustus Allen, Bull. Amer. Mus. Nat. 
Hist., 5, December 16, 1893, p. 335 (type from Lakeport, Lake 
County; California). 
Range—Upper Sonoran and Transition zones along Sierra 
Nevada, from vicinity of Yosemite north to Mount Shasta, 
thence west to Trinity Mountains and south along inner coast 
ranges nearly to San Francisco Bay (Osgood, N. Amer. Fauna, 
28, 1909, p. 142; Mus. Vert. Zool.). 
Peromyscus boylei rowleyi (Allen) 
Rowley White-footed Mouse 
Original description—Sitomys rowleyi Allen, Bull. Amer. 
Mus. Nat. Hist., 5, April 28, 1893, p. 76. 
Type locality—Noland Ranch, San Juan River, Utah (fide 
Osgood, N. Amer. Fauna, 28, 1909, p. 145). 
Synonyms—Sitomys major Rhoads, Amer. Nei, Al, SEE 
tember, 1893, pp. 831, 832 (type from Squirrel Inn, San Ber- 
nardino Mountains, San Bernardino County, California) ; 
Peromyscus parasiticus Elliot, Field Col. Mus., zool. ser., 3, 
December, 1903, p. 244 (type from Lone Pine, Inyo County, 
California) ; Hesperomys aztecus. 
Range—Upper Sonoran and Transition zones along moun- 
tains of southern California, north through coast ranges to 
Monterey County and in southern Sierra Nevada through 
Tulare County, thence east across Owens Valley and on Provi- 
dence Mountains (Osgood, N. Amer. Fauna, 28, 1909, pp. 
146, 147; Mus. Vert. Zool.). 
Peromyscus truei truei (Shufeldt) 
True White-footed Mouse 
Original description—Hesperomys truet Shufeldt, Proc. U. 
S. Nat. Mus., 8, 1885, pp. 407, 408. 
Type locality—Fort Wingate, McKinley County, New 
Mexico. 
Synonyms—Peromyscus lasius Elliot, Field Col. Mus., zool. 
ser., 3, March, 1904, p. 265 (type from Hannopee Canyon, 
