INDEX. 



81 H 



Page. 



nigripes. Myodes "" 



nigrocinctus, Tragultis 20 



nitidus, Vespertilio 272 



nitratoides, Dipodomys .58 



nitratus, Dipodomys 59 



ni%'arius, E votomys 94 



norvegicus, Evotomys 95 



notabilis, Ratufa 201 



notata, Chincha 225 



Mephitis 225 



Notiosorex 240 



crawfordi 240 



evotis 240 



gigas 240 



noveboracensig, Peromyscv~<i 126 



novemlineatus, Sciurus 178 



Tamiops 178 



nuda, Sorex 241 



Nyctioea crepuscularis 275 



cjiiocephala 279 



Nycticebus 281 



bancanus 281 



bomeaniis 281 



natunae 282 



Nycticeius 275 



humeralis 275 



Nyctinomops j-ucatanicus 280 



Nyctinomus 279 



antillulanun 279 



ejTiocephalus 279 



depressus 280 



jobensis 280 



macTOtis 279 



nevadensis 280 



orthotis 280 



pusillus 280 



yucatanicus 280 



Nyctomys 142 



decolorus 142 



nuchalis, Sciurus 190 



nudicauda, Neotoma 102 



(). 



paxacs, Marmosa 2 



oaxacensis, Peromyscus 136 



obliquidens, Lagenorhynchus 8 



obscura, Blarina 239 



obscunis, Eutamias 177 



Evotomys 95 



Funambulus 197 



Lagenorhynchus 287 



Liorays 46 



Mus 151 



Pipistrellus 275 



Reithrodontorays 116 



Sorei 249 



Tamias 177 



Vespertilio 272 



obsidianus, Citellus 168 



Spermophilus 168 



obsoletus, Citellus 168 



Spermophilus 168 



ocoidentalis, Arvicola 89 



Evotomys 95 



Mephitis 225 



Neotoma 102 



Ocbotona 39 



I'atre. 



Ofluitoiia cansus 39 



collaris 39 



Ochotonida- 39 



ochrac-ea. Neotoma 103 



ochrogastcr, ^ficrotus 81,83 



ochrogenys, Eutamias 177 



ochrognathus, Sigmodon 110 



oehrus, I'erognathus 53 



opius, Thomomys 67 



Octodontida; 41 



Odocoileus 12 



califomicus 288 



canus 12 



cerrosensis 12 



columbianus 288 



eostaricensis 13 



crooki 13 



eremicus 13 



nelsoni 14 



scaphiotus 14 



sitkensis 14 



texamis 14 



thomasi 15 



tniei 12 



oi, Sus 23 



olympica, Aplodontia 159 



olympus, Arct imys 161 



Felis 208 



Marmota 161 



Onychomys 122 



alljescens 122 



arenieola 122 



brevicaudus 122 



canus 122 



fuliginosus 122 



perpallidus 122 



torridus 123 



lularensis 123 



yakiensis 123 



operarius, Arvicola 90 



Eutamias 177 



Microtus 90 



Thomomys 68 



orarius, Scapanus 234 



orbitalis, Liomys 46 



Orea, destnictor 6 



orca, Evotomys 95 



oreas, Microtus 90 



oregonensis, Putorius 220 



Vespertilio 272 



oregonus, Citellus 169 



Microdipodops 56 



Spermophilus 169 



Thomomys 68 



Zapus 43 



oreocetes, Cratogeomys 73 



Eutamias 177 



oreopolus, Sorex 247 



origenes, Mustela 222 



orizahiE, Lepus 35 



Neotoma 103 



Neotomodon 108 



Peromyscus 136 



Reithrodontomys 116 



Sorex 247 



Sylvilagus 35 



Thomomys 68 



