646 



BULLETIN 128, UNITED STATES NATIONAL MUSEUM. 



oaxacensis, Perorayscus 341 



obensis, Myodes 396 



obesus, OdobcBDus 167 



Odobenus 167 



Trichechus 167 



obliquidens, Lagenorhynchus 510 



obscura, Blarina 32 



Cryptotis 32 



Lichonycteris 53 



Marmota 177 



Ondatra 425 



obscurus, Dipodomys 294 



Eutamias 208 



Evotomys 404 



Fiber 425 



Liomys 268 



Molossus 89 



Perodipus 294 



Perognathus 283 



Pipistrellus 75 



Reithrodontomys 310 



Sorex 21 



Tamias 208 



obsidianus, Citellus 192 



Spermophilus 192 



obsoletus, Citellus 189 



Spermophilus 189 



Ocelots 156 



occidentalis, Canis 154 



Cervus 483 



Chincha 138 



Evotomys 404 



Mephitis 138 



Neotoma 391 



occipitalis, Fiber 427 



Ondatra 427 



occisor, Mustela 120 



Putorius 120 



occultus, Myotis 68 



Perognathus 286 



Scapanus 11 



Ochetodon humilis 306 



longicauda 308 



mexicanus 315 



montanus 307 



ochotensis, Phoca 163 



Ochotona 446 



albatus 446 



brunnescens 447 



cinnamomea 446 



coUaris 446 



cuppes 446 



fenisex 448 



flgginsi 447 



fumosa 447 



fuscipes 448 



incana 448 



jewetti 448 



lemhi 449 



levis 447 



lutescens 447 



minimus 446 



muiri 448 



nevadensis 449 



nigrescens 447 



princeps 447 



saxatalis 448 



Ochotona schisticeps 448 



sheltoni 44S 



taylori 448 



uinta 449 



ventorum 449 



oehracea, Marmota 174 



Neotoma 387 



ochraceus, Evotomys 402 



Oryzomys 367 



Peromyscus 335 



Procyon 109 



ochrogaster, Hypudseus 419 



Microtus 419 



ochrogenys, Eutamias 206 



ochrognathus, Sigmodon 374 



ochropus, Canis 153 



Ochrotomys 351 



ochrus, Perognathus 286 



ocius, Thomomys 247 



oculatus, Sciurus 227 



oculeus, Lynx 160 



ocythous, Urocyoa 148 



Odd-toed Ungulates 498 



Odobsenus obesus 167 



rosmarus 169 



Odobenus 167 



divergens 167 



rosmanis 167 



Odocoelus louisiauiP 489 



virginianus 489 



Odocoileus 484 



acapulcensis 485 



americanus 488 



baileyi 486 



battyi 486 



boreaUs 488 



californicus 485 



canus 485 



cerrosensis 486 



chiriquensis 487 



clavium 489 



columbianus 484 



costaricensis 486 



couesi 486 



crooki 486 



eremicus 485 



hemionus 485 



leucurus • - - 488 



louisianse 489 



macrourus 489 



macrurus : — 489 



mexieanus 487 



nelsoni 487 



osceola — 487 



peninsulas 485 



rothschildi 487 



scaphiotus 484 



sinaloae 487 



sitkensis 484 



speleus 484 



texanus 488 



texensis 488 



thomasi 488 



toltecus 48S 



truei 488 



virginianus 488 



virgultis 489 



virgultus 489 



