352 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



Vulpes vafra, 205. 

 velox, 20(1 

 vulpes (Canis), 204. 



wagneri (Sciurus), 300. 

 Wagneria, 231. 



annulata, 231 . 

 wardi (Ovibos), 22. 

 Washington! (Lepus), 180. 

 Washington! (Putorius), 223. 

 Washington!! (Lepus), 180. 

 waterhousei (Otopterus), 279. 

 waterhousii (Macrotus), 278, 270. 

 waterhousii (Otopterus), 279. 

 watson! (Tylomys), 89. 

 wortmani (Spermophilus), 57. 

 wortmani (Tamias), 57. 

 wrangeli (Evotomys), 113. 

 wrangeli (Synaptomys), 133. 



xanthinus (Dasypterus), 263. 

 xanthogenys (Musteia), 224. 

 xanthogenys (Putorius), 224. 

 xanthognatha (Arvicola), 124. 

 xanthognathus (Arvicola), 124. 

 xanthognathus (Microtus), 124. 

 xanti (Lepus), 181. 

 Xenomys, 110. 



nelson!, 110. 

 Xenurus, 11. 

 Xerospermophilus, 46. 



yagouaroundi (Felis), 198. 

 yaguarundi (Felis), 199. 

 yakimensis (Spermophilus), 53. 

 yakutatensis (Microtus), 121. 

 yelmensis (Thomomys), 145. 

 yucatanicus (Lepus)-, 187. 

 yucatanicus (Peromyscus), 87. 

 yucatanicus (Sciurus), 28. 



yukonensis (Lemmus), 134. 



(Sciuropterus), 62. 

 yumanensis (Myotis), 256. 

 yumanensis (Vespertilio), 256. 



zacatecae (Perognathus), 160. 

 Zaloplms, 190. 



californianus, 191. 

 Zapodinae, 166. 

 Zapus, 166. 



abietorum, 169. 



alascensis, 166. 



alien!, 168. 



americanus, 166. 



campestris, 167. 



hardyi, 306. 



hudsonius, 166, 306. 



imperator, 306. 



insignis, 168, 169. 



ladas, 166. 



major, 167. 



minor, 1(57. 



montanus, 168. 



nevadensis, 167. 



orarius, 168. 



oregonus, 167. 



pacilicus, 168. 



princeps, 167. 



roanensis, 169. 



saltator, 168. 



tenellus, 167. 



trinotatus, 167, 307. 

 zarhynchus (Peromyscus), 87. 

 zibethicus (Castor), ISO, 131. 

 zibethicus (Fiber), 131. 

 zibeticus (Fiber), 131. 

 Zygodontomys, 95. 



cherriei, 95. 

 Zygogeomys, 143. 



trichopus, 143. 



Printed, December, 1901. 



f fax. 77 



