MILLER AND REHN : NORTH AMERICAN MAMMALS. 117 
1895. 3I[icrotus] 2^^7111 sylvaiiicus Amer. nat., xxix, 
p. 940. October, 1895. 
Type locality. — Meadows below Philadelphia, Penns3dYaiiia. 
Microtus pennsylvanicus nigrans Rhoads. 
1897. Microtuspen.Jisi/IiKtnicus nlr/rans Rhoads, Proc. acad. 
nat. sci. Phila., p. 307. June 18, 1897. 
Type locality. — Currituck, Currituck Countj^, Xorth Caro¬ 
lina. 
Microtus pennsylvanicus acadieus Bangs. 
1897. Microtuspennst/lcauicus accidicus Bangs, Amer. nat., 
XXXI, p. 1^39. March, 1897. 
Type locality. — Dio'bv, Xova Scotia. 
Microtus pennsylvanicus modestus (Baird). 
1857. Arcicola modesta Baird, Manim. X. Amer., p. 535. 
1900. Microtus modestus Bailey, Xorth 
Amer. fauna, no. 17. June 6, 1900. 
Type locality. — Cochitopa (“ Sawatch Pass, Saguache 
CountY, Colorado. 
'' 
Microtus pennsylvanicus fontigenus (Bangs). 
1896. Microtus fontigenus Bangs, Proc. biol. soc. Washing¬ 
ton, X, p. 48. March 9, 1896. 
1897. Microtus pennsglranicus fontigenus Miller, Proc. 
Boston soc. nat. hist., xxyiii, p. 14. April 30, 1897. 
Type locality. — Lake Edward, Quebec, Canada. 
Microtus pennsylvanicus labradorius Bailey . 
1898. Microtus pennsglcanicus lahradorius Bailey, Proc. 
biol. soc. Washington, xii, p. 88. April 30, 1898. 
Type locality. — Fort Chimo, Ungava, Labrador. 
Microtus drummondii (Audubon and Bachman) . 
1854. Arvicola drummondii Audubon and Bachman, Quad. 
X. Amer., iii, p. 166. 
1894. Arcicola {Mynomes) drummoyidi Rhoads, Proc. acad. 
nat. sci. Phila., p. 287. October 23, 1894. 
1897. \^3Iicrotus'\ drummondi Trouessart, Catal. mamm., 
pt. Ill, p. 563. 
Type locality. — “ Yalle^^s of the Rocky Mountains ” ; prob¬ 
ably in the vicinity of Jasper House, Alberta, Canada. 
