662 



BULLETIN 128, UNITED STATES NATIONAL MUSEUM. 



Page. 



sibila, Arctoinys 178 



Marmota 178 



sibiricus, Gulo 128 



siccus, Perognathus 282 



sieboldji, Batena 504 



Eubalsena 50} 



sierrae, Lcpus 451 



Marmota 175 



Martes 116 



Microtus 415 



Ovis 496 



Sigmodon 369 



allenl 373 



alticola 374 



amoles 374 



arizonae 371 



austerulus 373 



baileyi 371 



berlandieri 370 



boracBB 372 



chiriquensis 373 



cienegae 370 



colimae 371 



conflnis 370 



eremicus 370 



exsputus 369 



fervidus 372 



fulviventer 373 



furvus 372 



goldmani 374 



griseus 371 



hispidus 369 



inexoratus 372 



jacksoni 372 



leucotis 374 



littoralis 369 



major 371 



mascotensis 371 



melanotis 373 



mierodon 372 



minimus 373 



ochrognathus 374 



pallidus 370 



saturatus 372 



spadicipygus 369 



texianus 370 



toltecus 372 



tonalensis 371 



vulcani 373 



Sigraodontomys 367 



alfari 367 



silus, Sciuroptenis 231 



Silver-haired bat 74 



sil\'icoIa, Phenacomys 400 



Simla belzebul 168 



capucina 169 



mona 172 



nictitans 172 



CBdipus 167 



paniscus 170 



sciurea 171 



trivirgata 169 



similis, Dipodomys 292 



Sorex 21 



Sylvilagus 464 



simiolus, Dipodomys 291 



simplex, Neotoma 389 



simplicicanus, Lepus 465 



simulans, Dipodomys 295 



Eutamias 204 



Perodipus 295 



simulatus, Peromyscus 347 



simulus, Peromyscus 340 



sinaloae, Marmosa 6 



Molossus 89 



Neotoma 385 



Odocoileus 487 



Thomomys 244 



sinaloensis, Sciurus 219 



sinuosus, Sorex 25 



sisliiyou, Eutamias 206 



sitlsaensis, Vulpes 145 



sitkensis, Microtus 413 



Odocoileus 484 



Peromyscus 332 



Ursus 105 



Sitomys americanus 324 



anzonas 336 



artemisise 326 



auripectus 319 



canadensis 324 



decolorus 368 



gilberti 343 



herronii 321 



insolatus 330 



keeni 326 



macrorhinus 326 



maj or 339 



martirensis 343 



megacephalus 33S 



muscuius 318 



nigellus 321 



niveiventris 333 



pinalis 339 



robustus 338 



rowleyi 339 



subgriseus 333 



thurberi 327 



Skunks 132 



Sloths, three-toed 499 



two-toed 500 



sociabilis, Myotis 69 



socialis, Cynomys 196 



Sciurus 219 



sola, Neotoma 382 



Solenodon 10 



cubanus 10 



paradoxus 10 



solitaria, Neotoma 386 



solivagus, Eutamias 205 



sonomae, Eutamias 207 



Sorex 27 



sonora, Lutra 130 



sonorana, Liomys 267 



sonoranus, Liomys 267 



sonoriensis, Citellus 191 



Conepatus 142 



Dicotyles 481 



Dipodomys 297 



Hesperomys 330 



Pecari 481 



Peromyscus 330 



Spermophilus 191 



