INDEX. 



673 



Page. 



Whales, haleen 504 



beaked 514 



White sheep 497 



whale 513 



White-footed mice 318 



White-lipped peccaries 482 



White-tailed deer 485 



jackrabbit 451 



winnemana, Microsorex 30 



Myotis 71 



Wolverines 128 



Wolves 153 



Woodchucks 173 



Woodland bison 494 



caribou 491 



W^ood-rats 376 



Woolly opossums 8 



wortmani, Callospermophllus 184 



Tamias 184 



wrangeli, E votomys 401 



Synaptomys 395 



xanthinus, Dasypterus 80 



xanthogenys, Mustela 122 



Putorius 122 



xanthognatha, Arvicola 418 



xanthosrnathus, Microtus 418 



xanthonotus, Perognathus 279 



xauti, Lepus 462 



Xenoctenes 45 



hirsutus 45 



Xenomys 393 



nelsoni 393 



Xenurus 503 



hispidns 503 



xenurus, Percmyscus 346 



xerampelinus, Akodon 375 



Scotinomys 375 



Xerospermophilus 184 



Xylomys 266 



y-agouaroundi, Fehs 159 



yakiensis. Onychomys 305 



yakimensis, Citellus 189 



Spermophilus 189 



yakutatensis, Microtus 413 



yaquinpe, Sorex 27 



yelmensis, Thomomys 251 



yosemite, !^f icrotus 408 



yucatanensis, Didelphis 4 



Oryzomys 358 



Pecari 482 



Sciurus 220 



Tayassu 482 



yucatanise, Coendnu 438 



yucatanica, I'asyprocta 445 



Tadarida 87 



Nasua 110 



yucatanicus, Artil)eus 5k 



lepus 468 



N yctinomops 87 



PiTomyscus 349 



Syl vilapus 468 



yukonensis. Olaueomys 2;« 



Lemmus 390 



Sciuroptems 233 



57506—24 44 



Page. 



yumanensis, Myotis 69 



VespertiUo 69 



zacateCEE, Neotoma 330 



Perognathus 281 



Reithrodontomys 310 



Zalophus 162 



ealifomianus i62 



zalophus, Fiber 426 



Ondatra 426 



zamelas, Peromyscus 334 



zamorrt^, Peromyscus 346 



zaphaf' us, Glaucomys 233 



Sciuroptonis 233 



Zapus 432 



abietomm 435 



alascensis 433 



alleni 434 



americaiuis 433 



aus tralis 435 



campestris : 433 



eureka 434 



hardyi 432 



hndsonins 432 



iniperatnr 4.34 



insignis 435 



ladas 432 



luteus 434 



major 434 



minor 433 



montanus 435 



nevadensis 434 



orarius 435 



nregonus " 434 



pacificus 435 



princeps 433 



ronnensis 436 



snltator 435 



tenellus 433 



trinotatus 434 



zarhinus, Vampyrops 55 



zarhynchus, Peromyscus 350 



zeledoni, Marmosa 7 



zelotes, Peromyscus 344 



zibethica, Ondatra 425 



zibethicus, Castor 425 



Fiber 425 



Ziphila 503 



Ziphius 516 



cavirostris 516 



grcbnitzkii 516 



semijunctus 516 



zonalis, Aotus 169 



Heteromys 264 



zuniensis, Cynomys 198 



Zygodontnmys 364 



cherriei 364 



seorsus 364 



ventriosus 364 



Zygogeomys 263 



trichopus 263 



zygomaticus, Dipodomys 290 



Oryzomys 354 



