576 U. S. NATIONAL MUSEUM BULLETIN 205 



Type Locality. — Northwest slope of Mount Ellinor, Olympic Mountains, 

 Mason County, Wash. Altitude, 4,000 feet. Range. — Olympic Mountains, from 

 Sol Due Hot Springs south and west at least to Staircase, on Lake Cushman, 

 Wash. (Dalquest, Univ. Kansas Publ. Mus. Nat. Hist., vol. 2, p. 343, Apr. 9, 

 1949) . 



Clethriononiys occidentalis mazama (Merriam)f* 



1897. Evotomys mazama Merriam, Proc. Biol. Soc. Washington, vol. 11, p. 71, 

 Apr. 21, 1897. 



1936. Clethrionomys californicus mazama V. Bailey, North Amer. Fauna No. 

 55 (June) , p. 192, Aug. 29, 1936. 



1952. Clethrionomys occidentalis mazama Hall and Cockrum, Univ. Kansas 

 Publ. Mus. Nat. Hist., vol. 5, No. 23, p. 301, Nov. 17, 1952. 



Type Locality.— Crater Lake, Mount Mazama, Klamath County, Oreg. Alti- 

 tude, 7,000 feet. Range. — Canadian zone area of Cascade Mountains in Oregon, 

 grading into obscurus on lower slopes (V. Bailey, North Amer. Fauna No. 55 

 (June), p. 192, Aug. 29, 1936); and southward into northern California and 

 extreme northern Sierra Nevada; recorded from Mount Shasta, Siskiyou County; 

 Carberry Ranch, near Montgomery Creek, Shasta County; vicinity of Lassen 

 Peak, Tehama County; and near Quincy, Plumas County; vertical range, 3,500 

 to 7,700 feet; zonal range, Transition and Canadian (Grinnell, Univ. California 

 Publ. Zool., vol. 40, No. 2, p. 184, Sept. 26, 1933) . 



Clethrionomys occidentalis obscurus (Merriam) f* 



1897. Evotomys obscurus Merriam, Proc. Biol. Soc. Washington, vol. 11, p. 72, 

 Apr. 21, 1897. 



1936. Clethrionomys californicus obscurus V. Bailey, North Amer. Fauna No. 

 55 (June) , p. 192, Aug. 29, 1936. 



1952. Clethrionomys occidentalis obscurus Hall and Cockrum, Univ. Kansas 

 Publ. Mus. Nat. Hist., vol. 5, No. 23, p. 302, Nov. 17, 1952. 



Type Locality. — Prospect, Upper Rogue River Valley, Jackson County, Oreg. 

 Altitude, about 2,600 feet. Range. — Northwestern, interior, mountainous por- 

 tion of California immediately east of humid coast belt, and south from Trinity 

 Mountains to vicinity of Yola Bolly Mountain; recorded from Jackson and 

 Castle Lakes, Siskiyou County ; South Fork Mountain near Blake Lookout, eastern 

 Humboldt County ; divide 12 miles north of North Yolla Bolly Mountain, Trinity 

 County; 2 miles south of South Yolla Bolly Mountain, western Tehama County; 

 vertical range from 4,400 feet up to 7,500 feet; zonal range, Transition and 

 Canadian (Grinnell, Univ. California Publ. Zool., vol. 40, No. 2, p. 185, Sept. 26, 

 1933) ; and northward into Oregon through open Transition Zone valleys be- 

 tween heavy timber of humid Coast Ranges and Canadian Zone forests of Cascade 

 Mountains along edges of Rogue, Umpqua, and Willamette River Valleys (V. 

 Bailey, loc. cit.) . 



Clethrionomys occidentalis californicus (Merriam) f* 



1890. Evotomys californicus Merriam, North Amer. Fauna No. 4, p. 26, Oct. 



8, 1890. 

 1933. Clethrionomys californicus Grinnell, Univ. California Publ. Zool., vol. 

 40, No. 2, p. 185, Sept. 26, 1933. 



