406 BULLETIN 128, UNITED STATES NATIONAL MUSEUM. 



t*Microtus pennsylvanicus modestus — Continued. 



Type Locality. — Cochetopa C'Sawatch") Pass, Saguache 

 County, Colorado. 



Range. — Rocky Mountains and western plains from New Mexico 

 to British Columbia, and from the Black Hills of South Dakota 

 to central Idaho, and beyond, with slight variation, to the 

 plains of the Columbia, mainly in transition zone. 



t*Microtus pennsylvanicus wahema Bailey. 



1920. Microtis 'pennsylvanicus wahema Bailey, Journ. Manun. , 



vol. 1, p. 72. March 2, 1920. 

 Type Locality. — Glendive, Dawson County, Montana. 

 Range. — Arid badland area of the northern Great Plains. Upper 



Sonoran and transition zones. 



*Microtus pennsylvanicus fontigenus (Bangs). 



1896. Microtus fontigenus Bangs, Proc. Biol. Soc. Washington, 

 vol. 10, p. 48. March 9, 1896. 



1897. Microtus 'pennsylvanicus fontigenus Millee, Proc. Boston 

 Soc. Nat. Hist., vol. 28, p. 14. April 30, 1897. 



Type Locality. — Lake Edward, Quebec, Canada. 

 Range. — Eastern Canada, in the Hudsonian zone. 



t*Microtus pennsylvanicus labradorius Bailey. 



1898. Microtus pennsylvanicus labradorius Bailey, Proc. Biol. 

 Soc. Washington, vol. 12, p. 88. April 30, 1898. 



Type Locality. — Fort Chimo, Ungava, Canada. 

 Range. — Kjiown only from the type locality. 



*Microtus provectus Bangs. 



1908. Microtus provectus Bangs, Proc. New England Zool. Club, 



vol. 4, p. 20. March 6, 1908. 

 Type Locality. — Block Island, Newport County, Rhode Island. 



*Microtus drummondii (Audubon and Bachman). 



1854. Arvicola drummondii Audubon and Bachman, Quadr. N. 



Amer., vol. 3, p. 166. 

 1894. Arvicola (Mynomes) microcephalus Rhoads, Proc. Acad. 



Nat. Sci. Philadelphia, p. 286. October 23, 1894. (Lac La 



Hache, British Columbia, Canada.) 

 1897. [Microtus] drummondi Trouessart, Catal. Mamm. viv- 



foss., p. 563. 



1899. Microtus stonei Allen, Bull. Amer. Mus. Nat. Hist., vol. 12, 

 p. 5. March 4, 1899. (Liard River, British Columbia, Canada.) 



Type Locality. — ''Valleys of the Rocky Mountains;" probably 

 in the vicinity of Jasper House, Alberta, Canada. 



