584 U. S. NATIONAL MUSEUM BULLETIN 205 



Type Locality. — Meadows below Philadelphia, Pa. Range. — From South 

 Carolina (Charleston County, A. L. Nelson, Journ. Mamm., vol. 15, No. 3, p. 253, 

 Aug. 10, 1934), West Virginia (Kellogg, Proc. U. S. Nat. Mus., vol. 84, p. 468, 

 Oct. 7, 1937) , Kentucky (Welter and Sollberger, Journ. Mamm., vol. 20, No. 1, p. 

 81, Feb. 15, 1939) , and eastern Missouri (V. Bailey, North Amer. Fauna No. 17, 

 p. 18, June 6, 1900), northward through Iowa (Scott, Iowa State College Journ. 

 Sci., vol. 12, No. 1, p. 77, October 1937) to upper Red River Valley in eastern 

 North Dakota (V. Bailey, North Amer. Fauna No. 49 (1946) , p. 90, Jan. 8, 1927), 

 Minnesota (Swanson, Minnesota Dept. Conserv. Techn. Bull. 2, p. 90, 1945), 

 Upper and Lower Peninsulas of Michigan (Burt, Mammals of Michigan, p. 216, 

 1946), Ohio (Bole and Moulthrop, Sci. Publ. Cleveland Mus. Nat. Hist., vol. 5, 

 No. 6, p. 153, Sept. 11, 1942), New York; and northeastern United States to 

 northern New Brunswick, Quebec south of St. Lawrence River, including Gaspe, 

 southern and eastern Ontario, intergrading with fontigenus north of Ottawa 

 River; Algonquin Park, Nipissing and east end of Lake Superior; west of Great 

 Lakes intergrading with drummondii on southern edges of southwestern Ontario 

 and southeastern Manitoba (Anderson, Nat. Mus. Canada Bull. 102 (1946), p. 

 185, Jan. 24, 1947). Recorded also from 2 miles north of Athens, Ga. (Odum, 

 Journ. Mamm., vol. 29, No. 1, p. 74, Feb. 13, 1948) . 



M icrotus pennsylvanicus nigrans Rhoads* 



1897. Microtus pennsylvanicus nigrans Rhoads, Proc. Acad. Nat. Sci. Phila- 

 delphia, vol. 49, p. 307, June 18, 1897. 



Type Locality. — Currituck, Currituck County, N. C. Range. — Near the coast 

 from southeastern Maryland south to northeastern North Carolina; in Virginia 

 inland at least to Richmond County (Handley and Patton, Wild mammals of 

 Virginia, p. 174, 1947). Probably ranges southward to near Santee River, 

 Charleston County, South Carolina (A. L. Nelson, Journ. Mamm., vol. 15, No. 4, 

 p. 253, Nov. 15,1934). 



Microtus pennsylvanicus shattucki Howe* 



1901. Microtus pennsilvanicus [sic] shattucki Howe, Proc. Portland Soc. Nat. 

 Hist., vol. 2, p. 201, Dec. 31, 1901. (Regarded as identical with pennsylvani- 

 cus by Wyman, Journ. Mamm., vol. 3, No. 3, pp. 162-166, Aug. 4, 1922.) 

 Type Locality. — Tumble Down Dick Island, near Long Island, Penobscot Bay, 

 Maine. Range. — Known from type locality only. 



Microtus pennsylvanicus acadicus Bangs* 



1897. Microtus pennsylvanicus acadicus Bangs, Amer. Nat., vol. 31, p. 239, 

 March 1897. 



Type Locality. — Digby, Nova Scotia, Canada. Range. — Nova Scotia, Prince 

 Edward Island, Grand Manan Island, and probably southern New Brunswick, 

 Canada (Anderson, Nat. Mus. Canada Bull. 102 (1946), p. 155, Jan. 24, 1947). 



Microtus pennsylvanicus terraenovae (Bangs)* 



1894. Arvicola terraenovae Bangs, Proc. Biol. Soc. Washington, vol. 9, p. 129, 



July 27, 1894. 

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



23, 1896. 



