938 



U. S. NATIONAL MUSEUM BULLETIN 205 



ratticeps, Microtus, 604 

 Rattus, 619 



alexandrinus, 620 

 frugivorus, 621 

 norvegicus, 619 

 rattus, 620 

 rattus, Mus, 620 

 Rattus, 620 

 ravida, Neotoma, 542 

 raviventris, Reithrodontomys 



454 

 ravus, Microtus, 603 



Reithrodontomys, 453 

 Thomomys, 316 

 rectipinna, Grampus, 661 



Orca, 661 

 redmani, Monophyllus, 70 

 reductus, Glaucomys, 273 

 regalis, Tamiasciurus, 263 



Vulpes, 683 

 regillus, Dipodomys, 394 



Oryzomys, 431 

 Reithrodon longicauda, 452 



megalotis, 450 



mexicanus, 462 



montanus, 448 



sumichrasti, 454 

 Reithrodontomys, 447 



albescens, 449 



albilabris, 465 



alleni, 455 



alticolus, 451 



amoenus, 460 



amoles, 451 



anthonyi, 461 



arizonensis, 453 



aurantius, 458 



aureus, 465 



australis, 456 



aztecus, 453 



brevirostris, 464 



burti, 449 



canus, 457 



caryi, 453 



catalinae, 452 



cherrii, 463 



chiapensis, 460 



chrysopsis, 458 



chrysotis, 451 



cinereus, 456 



colimae, 456 



costaricensis, 463 



creper, 465 



dariensis, 462 



deserti, 450 



dickinsoni, 448 



difficilis, 458 



distichalis, 452 



dorsalis, 455 



Reithrodontomys — Con. 

 dychei, 454 

 fulvescens, 457 

 garichensis, 464 

 goldmani, 462 

 gracilis, 461 

 griseoflavus, 458 

 griseus, 449 

 halicoetes, 454 

 harrisi, 462 

 helvolus, 460 

 hirsutus, 461 

 howelli, 462 

 humulis, 448 

 impiger, 448 

 inexspectatus, 459 

 infernatis, 459 

 intermedius, 457 

 jalapae, 462 

 klamathensis, 453 

 laceyi, 457 

 levipes, 461 

 limicola, 452 

 longicaudus, 452 

 lucifrons, 463 

 luteolus, 455 

 megalotis, 450 

 merriami, 448 

 mexicanus, 462 

 microdon, 464 

 minusculus, 463 

 modestus, 456 

 montanus, 448 

 mustelinus, 460 

 nebrascensis, 454 

 nelsoni, 459 

 nerterus, 455 

 nigrescens, 450 

 obscurus, 451 

 ocotepequensis, 463 

 orinus, 463 

 orizabae, 457 

 otus, 455 

 pacificus, 461 

 pallidus, 452 

 pectoralis, 454 

 peninsulae, 452 

 perotensis, 457 

 potrerograndei, 464 

 raviventris, 454 

 ravus, 453 

 rodriguezi, 465 

 rufescens, 454 

 santacruzae, 452 

 saturatus, 451 

 scansor, 462 

 seclusus, 455 

 sestinensis, 450 

 sumichrasti, 454 



Reithrodontomys — Con. 

 tenuirostris, 461, 465 

 tenuis, 459 

 toltecus, 459 

 tolucae, 456 

 tropicalis, 458 

 underwoodi, 456 

 virginianus, 448 

 vulcanius, 456 

 wagneri, 465 

 zacatecae, 451 

 Reithronycteris, 84 



aphylla, 84 

 relicinus, Thomomys, 317 

 relicta, Neotoma, 544 

 relictus, Capromys, 640 

 Perognathus, 358 

 Sorex, 28 

 Thomomys, 324 

 repanda, Lutra, 766 

 repens, Heteromys, 415 

 repentinus, Castor, 427 

 reperticia, Mazama, 809 

 restrictus, Peromyscus, 493 



Sylvilagus, 163 

 retrorsus, Thomomys, 314 

 reventazoni, Oryzomys, 440 

 rhabdops, Oryzomys, 436 

 Rhachianectes, 665 



glaucus, 665 

 Rheomys, 558 



chiapensis, 558 

 hartmanni, 558 

 raptor, 558 

 stirtoni, 558 

 thomasi, 558 

 underwoodi, 558 

 rhinodon, Beluga, 654 

 Rhipidomys, 443 

 benevolens, 441 

 scandens, 443 

 rhizophagus, Thomomys, 288 

 rhoadsi, Clethrionomys, 570 

 Evotomys, 570 

 Peromyscus, 487 

 Rhogeessa, 108 

 alleni, 109 

 gracilis, 109 

 parvula, 108 

 tumida, 109 

 Rhynchiscus, 53 

 naso, 53 

 priscus, 54 

 Rhynchonycteris, 53 



naso, 53 

 richardii, Halicyon, 785 



Phoca, 785 

 richardsoni, Artibeus, 78 

 Arvicola, 582 

 Aulacomys, 582 



