596 U. S. NATIONAL MUSEUM BULLETIN 205 



Type Locality.— San gre de Cristo, lat. 31°52' N., long. 116°06' W., in Valle 

 San Rafael, on western base of Sierra Juarez, Baja California, Mexico. Range. — 

 So far as known, in region immediately west of Sierra Juarez. 



toumsendii — group 



Micro t us townsendii townsendii (Bachman) * 



1839. Arvicola toumsendii Bachman, Journ. Acad. Nat. Sci. Philadelphia, vol. 

 8,pt. 1, p. 60. 



1884. Arvicola townsendii True, Proc. U. S. Nat. Mus., vol. 7 (App., Circ. 29) , 

 p. 597, Nov. 29, 1884. (Part.) 



1896. M[icrotus] towns endi Miller, North Amer. Fauna No. 12, p. 66, July 

 23, 1896. 



Type Locality. — Columbia River; near mouth of Willamette River, on or near 

 Wappatoo (orSauvie) Island, Multnomah County, Oreg. (V. Bailey, North Amer. 

 Fauna No. 17, p. 46, June 6, 1900). Range. — Coast area of extreme south- 

 western British Columbia, Washington, Oregon, and northwestern California; 

 Port Moody, Huntingdon, and Chilliwack, in extreme southwestern British Co- 

 lumbia, south of lower Fraser River (Anderson, Nat. Mus. Canada Bull. 102 

 (1946), p. 157, Jan. 24, 1947) ; lowlands of western Washington from Belling- 

 ham south to Puget Island (Dalquest, Univ. Kansas Publ. Mus. Nat. Hist., vol. 2, 

 p. 351, Apr. 9, 1948) ; Willamette, Umpqua, and Rogue River Valleys, west of 

 Cascade Mountains, Oreg. (V. Bailey, North Amer. Fauna No. 55 (June), p. 206, 

 Aug. 29, 1936) ; and salt marshes on Humboldt Bay, near Eureka, Humboldt 

 County, Calif. (A. B. Howell, Journ. Mamm., vol. 4, No. 1, p. 33, Feb. 9, 1923). 



Microtus townsendii pugeti Dalquest* 



1940. Microtus townsendii pugeti Dalquest, Murrelet, vol. 21, No. 1, p. 7, 

 Apr. 30, 1940. 



Type Locality. — Neck Point, northwest corner of Shaw Island, San Juan 

 County, Wash. Range. — San Juan Islands, San Juan and Skagit Counties, Wash- 

 ington (Dalquest, Univ. Kansas Publ. Mus. Nat. Hist., vol. 2, p. 351, Apr. 9, 

 1948). 



Microtus townsendii tetramerus (Rhoads) * 



1894. Arvicola (Tetramerodon) tetramerus Rhoads, Proc. Acad. Nat. Sci. 



Philadelphia, vol. 46, p. 283, Oct. 23, 1894. 

 1900. Microtus tetramerus V. Bailey, North Amer. Fauna No. 17, p. 47, June 6, 



1900. 

 1936. Microtus townsendii tetramerus Hall, Murrelet, vol. 17, No. 1, p. 15, 



Mar. 28, 1936. 

 Type Locality. — Beacon Kill Park, Victoria, Vancouver Island, British Colum- 

 bia, Canada. Range. — Known only from vicinity of Victoria, at southern end 

 of Vancouver Island. 



Microtus townsendii iaingi Anderson and Rand 



1943. Microtus townsendii Iaingi Anderson and Rand, Canadian Field-Nat., 

 vol. 57, Nos. 4-5 (May) , p. 74, Oct. 17, 1943. 



Type Locality. — Port Hardy, on Queen Charlotte Strait, northeastern Van- 

 couver Island, British Columbia, Canada. Range. — From northern part of Van- 



