316 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 
Type locality—Near head of Timber Creek, 10,500 feet alti- 
tude, Salmon River Mountains, Idaho. 
Range—Known only from three specimens taken in the 
Boreal zone on Mount Shasta (Merriam, N. Amer. Fauna, 16, 
1899, p. 95), and one specimen taken at about 7500 feet alti- 
tude near Pyramid Peak, Eldorado County (Elliot, Field Col. 
Mus., zool. ser., 1, 1898, p. 204). 
Phenacomys albipes Merriam 
White-footed Lemming Mouse 
Original description—Phenacomys albipes Merriam, Proc. 
Biol Soc. Wash ls. lly 19 190 ppl 25. Zo: 
Type locality—Redwoods near Arcata, Humboldt County, 
California. 
Range—The type specimen, taken in northwest humid 
Boreal, as above, represents the only locality of occurrence so 
far known. 
Phenacomys longicaudus True 
Long-tailed Lemming Mouse 
Original description—Phenacomys longicaudus True, Proc. 
UPS Nate Mas. 13) 13890 spp: 303; 304. 
Type locality—Marshfield, Coos County, Oregon. 
Range—One record for the state: one specimen found dead 
in a road near Mount Sanhedrin (Transition zone), Mendo- 
cino County (Stone, Proc. Acad. Nat. Sci. Phila., July, 1904, 
Db SIS) - ' 
Evotomys mazama Merriam 
Mazama Red-backed Mouse 
Original description—Evotomys magama Merriam, Proc. 
Biols Soc Wash tle Apa 21 S97 np Z: 
Type locality—Crater Lake, Klamath County, Oregon. 
Range—Boreal zone on Mount Shasta (Merriam, N. Amer. © 
Fauna, 16, 1899, p. 95). 
Evotomys obscurus Merriam 
Dusky Red-backed Mouse 
Original description—Evotomys obscurus Merriam, Proc. 
Biol Soc) Wash 1 April 21 1897e p72: 
