LIST OF SPECIES. 
17 
Page, 
182. —^Arvicola cumamonea, Bairdj (n.s.).—Pembina, Minnesota. 541 
183. —Arvicola haydenii, Baird, (n. s.)—Fort Pierre, Nebraska. 543 
e. Pitymys, McMurtrie. 517 
184. —Arvicola pinetorum, Leconte.—Upland Mouse.—Long Island, N. Y., to Florida 
and the Gulf States, Illinois and Ohio. 544 
42. MYODES, Pallas. 554 
a. Synaptomys, Baird, 554 
185. —Myodes cooperii, Baird, (n. s.)—United States. 558 
h. Myodes. 554 
186. —Myodes torquatus, Keys. & Bias.—Lemming.—Arctic Regions. 558 
187. —Myodes obensis, Brants.—Lemming.—Arctic Regions... 559 
43. FIBER, Cuv. 560 
188. —Fiber zibethicus, Cuv.—Musk Rat.—North America, generally. 561 
44. ERETHIZON, F. Cuvier. 568 
189. —Erethizon dorsatus, F. Cuv.—White-Haired Porcupine.—Eastern United States 
to the Mississippi river, and from Northern Pennsylvania to Canada.— 
(To 67°, Rich.). 568 
190. —EretMzon epixanthus, Brandt.—Yellow-Haired Porcupine.—Upper Missouri; 
whole Pacific Coast. 569 
45. LEPUS. 573 
191. —Lepus glacialis, Leach.—Polar Hare.—Newfoundland, north to the Polar Seas, 
and Greenland. 577 
192. —Lepus americanus, Erxl.—Northern Hare ; White Rabbit.—Mountains of Vir¬ 
ginia to Labrador. Not west of Minnesota?. 579 
193. —Lepus washingtonii, Baird, (n. s.)—Red Hare.—Washington Territory, to 54° 40' 583 
194. —Lepus campestris, Bach.—Prairie Hare.—Upper Missouri and Saskatchewan 
Plains to the Cascade Range of Oregon. 585 
195. —Lepus callotis, Wagler.—Jackass or Mule Rabbit.—Northern Mexico through 
southern Texas, and west through New Mexico to the Rocky Moun¬ 
tains. Fort Boise, Oregon Territory? Southern Sonora?. 
196. —Lepus califomicus, Gray.—California Hare.—Lower Colorado and San Diego, 
to Fort Jones, Cal. Not found east of Cascades. 594 
3 
