682 



BULLETIN 178, UNITED STATES NATIONAL MUSEUM 



orinomus, Bassaricyon, 79. 



Urocyon, 48. 

 orizabae, Lepus, 221. 



Neotoma, 296. 



Neotomodon, 298. 



Peromyscus, 328. 



Reithrodontomys, 348. 



Sorex, 191. 



Sylvilagus, 221. 



Thomomys, 394. 

 ornatulus, Epimys, 472. 



Rattus, 472. 

 ornatus, Dipodomys, 413. 



Sorex, 191. 

 Orolestes inca, 228. 

 orolestes, Neotoma, 296. 

 orophilus, Phenacomys, 338. 

 Orthogeomys, 372. 



aUeni, 372. 



annexus, 372. 



felipensis, 373. 



guerrerensis, 373. 



latifrons, 373. 



nelsoni, 373. 



vulcani, 373. 

 orthos, Dasymys, 444. 

 orthotis, Nyctinomus, 121. 

 Oryx, 10. 



annectens, 10. 

 Oryzomys, 304. 



albiventer, 304. 



angusticeps, 305. 



aurillus, 356. 



aztecus, 306. 



bombycinus, 305. 



caudatus, 305. 



colimensis, 308. 



coloratus, 309. 



couesi, 307, 308, 310. 



cozumelae, 306. 



crinitus, 306. 



dariensis, 305. 



dilutior, 305. 



floridanus, 309. 



frontalis, 306. 



gatunensis, 307. 



goldmani, 307. 



guerrerensis, 307. 



hylocetes, 307. 



idoneus, 308. 



lenis, 307. 



mayensis, 307. 



medius, 308. 



megadon, 310. 



mexicanus, 310. 



nelsoni, 309. 



palatinus, 309. 



peragrus, 308. 



pirrensis, 309. 



regillus, 306. 



rhabdops, 309. 



richmondi, 309. 



rostratus, 310. 



rufinus, 308. 



rufus, 310. 



saturatior, 306. 



talamancae, 310. 



Oryzomys teapensis, 310. 



yucatanensis, 311. 



zygomaticus, 311. 

 osgoodi, Citellus, 516. 



Cricetomys. 444. 



Ctenomys, 361. 



Spermophilus, 516. 



Thomomys, 396. 

 othus, Lepus, 213. 

 Otocyon, 46. 



virgatus, 46. 

 Otognosis, longimembris, 431. 

 Otomys, 453. 



doUmani, 453. 

 Ototylomys, 311. 



phaeus, 311. 



phyllotis, 311. 

 otus, Reithrodontomys, 344. 

 Ourebia, 10. 



aequatoria, 11. 



cottoni, 10. 



microdon, 10. 

 Ovis, 11. 



auduboni, 11. 



canadensis, 12. 



dalli, 12. 



gaillardi, 11. 



mexicana, 12. 



nelsoni, 12. 



sheldoni, 13. 



texiana, 11. 



weemsi, 11. 

 Oxymycterus, microtus, 265, 

 oxytona, Marmota, 541. 

 Ozanna, roosevelti, 8. 



Pachyura, aequatoria, 198. 



occultidens, 198. 

 pachyurus, Sorex, 191. 

 pacifica, Aplodontia, 253. 



Procyon, 84. 

 pacificus, Antrozous, 146. 



Lepus, 223. 



Perognathus, 433. 



Procyon, 84. 



Sorex, 191. 



Sylvilagus, 223. 



Zapus, 568. 

 padangus, Paradoxurus, 107. 

 pagensis, Cynopterus, 138. 



Macaca, 245. 



Macacus, 245. 



Mus, 472. 



Rattus, 472. 

 Paguma, 105. 



robusta, 105. 

 palatina, Neotoma, 296. 

 palatinus, Oryzomys, 309. 

 palelae, Rattus, 472, 

 pallasi, Ursus, 96. 

 pallens, Eptesicus, 147. 



Paradoxurus, 106. 

 pallescens, Citellus, 518. 



Coryuorhinus, 146. 



Lynx, 60. 



Onychomys, 303. 

 palliata, Ratufa, 549. 



