Microtus. 
453 
a. — canescens. Bailey — (4405 b); Bailey, 
1. c.. 1900, p. 31; Elliot, 1. c., 1901, 
p. 185. 
4593. canicaudus. Miller, Proc. Biol. Soc. Wash., 
1897, p. 67; Bailey, 1. c., 1900, p. 32; 
Elliot, 1. c., 1901, p. 185. 
4594. dutcheri, Bailey (339H B ); id., 1. c., 
1900, p. 32; Elliot, 1. c., 1901, p. 185. 
4595. nevadensis, Bailey — (3402°); id., 1. e., 
1900, p. 33; Elliot, 1. e., 1901, p. 185. 
4596. californicus. Peale — (3337); Bailey, 1. c., 
1900, p. 34, 35, f. 3; Elliot, 1. c., 1901, 
p. 186. 
a. — vallicola. Bailey — (33.97 b); Bailey, 
1. c., 1900, p. 36; Elliot, 1. e., 1901, 
p. 186 . 
b. — constrictus, Bailev, 1. c., 1900, p. 36; 
Elliot, 1. c., 1901. p. 186. 
4597. edax. Ee Conte — (3410); Bailey. 1. c., 
1900, p. 37 ; Elliot, 1. e., 1901, p. 187. 
4598. scirpensis, Bailey, 1. c., 1900, p. 38; Elliot, 
1. c., 1901, p. 187. 
4599. operarius. Nelson -r- (3414); Bailev, 1. e., 
1900, p. 39, f. 4; Elliot, 1. c., 1901, p. 187. 
4600. macfarlani, Merriam, Proc. Wash. Acad., 
1900, p. 25; Bailey, 1. c., 1900, p. 40; 
Elliot, 1. c., 1901, p. 187. 
4601. yakutatensis, Merriam, loc. cit., 1900, p. 22; 
Bailey, 1. c., 1900, p. 40; Elliot, 1. c., 1901, 
p. 188. 
4602. kadiacensis, Merriam — (3397°); Bailey, 
1. c„ 1900, p. 41; Elliot, 1. c„ 1901, p. 188; 
Osgood, N.-Am. Fauna, No. 21, 1901, p. 64. 
4603. unalascensis. Merriam — (3397 B ); Bailey, 
1. c., 1900, p. 42; Elliot, 1. c., 1901, p. 188. 
a. — popofensis, Merriam, Proc. Wash. 
Acad., 1900, p. 22; Bailey, 1. c., 1900, 
p. 42; Elliot, 1. C„ 1901, p. 188. 
Terr. Washington 
Sept. (Conconully) et 
Columbia Brit. Merid. 
Oregon (Vallo 
Willamette, Mac Coy), 
Washington Merid., 
M s Cascade Orieut. 
California Orieut., 
(Big Cottonwood 
Meadows), Invo et 
Tulare Cos. 
Nevada, Nye Co., 
(Ash Meadows), 
Vallo Pahranagat. 
California (Sinu San 
Fraucisco) et ab Ore- 
gon ad San Diego Co. 
California Orient., 
Iuyo Co., (Lone Pine) 
California Occid., 
(Cap. Mendocino). 
California Occ. et 
Merid., (urbi San 
Fraucisco). 
California, Iuyo Co., 
(Amargosa River). 
Alaska, Norton Sound, 
(S l Michaels). 
America Arctica ad 
Or. fl. Mackensie 
(Fort Anderson, Great 
Bear Lake Sept.). 
Alaska, Yakutat Bay, 
a Glacier Bay ad 
PrinceWilliam Sound. 
Alaska (1. Kadiak), 
Cook Iulet Kegion. 
Alaska (I. Unalaska). 
Alaska (Archip. 
Shumagin, I. Popof). 
