INDEX. 



187 



nevadensis, Bassariscus astutus, 131. 



nexus, Eutamias, 24. 



nexus, Tamias, 24. 



nicaraguae, Conepatus, 136. 



nicaraguae, Marmosa cinerea, 6. 



nicaraguae, Oryzomys, 60. 



nicaraguae, Philander, 6. 



nichollsi, Stenoderma, 171. 



nigrescens, Ochotona, no. 



nigrescens, Reithrodontomys megalotis, 



65. 

 nigrescens, Rhithrodontomys megalotis, 



65- 



nivaria, Marmota caligata, 38. 

 Noctilio albiventer, 160. 

 Noctilionidae, 160. 

 norwegicus, Epinomys, 42. 

 nosophora, Marmota flaviventer, 35. 

 novemcinctus, Dasypus, 8. 

 Nyctinomus jugularis, 162. 



minutus, 162. 



orthotis, 163. 



obesus, Odontobaenus, 144. 

 obesus, Trichechus, 144. 

 obscura, Marmota flaviventer, 37. 

 obscurus, Vespertilio, 157. 

 occultus, Myotis, 155. 

 occultus, Perognathus spinatus, 97. 

 occultus, Scapanus latimanus, 152. 

 Ochotona, no. 



albatus, no. 



cinnamomea, in. 



fenisex, no. 



figginsi, in. 



levis, in. 



minimus, no. 



nigrescens, no. 



taylori, in. 



uinta, in. 

 Ochotonidae, no. 

 ochracea, Marmota, 33. 

 ochraceus, Oryzomys, 60. 

 ochraceus, Peromyscus leucopus, 53. 

 ochraceus, Procyon lotor, 134. 

 ochrogaster, Hypudaeus, 76. 

 ochrogaster, Microtus, 76. 

 Octodontidae, 104. 

 Odobenus divergens, 144. 

 Odoccelus virginianus louisianae, 14. 

 Odocoileus rothschildi chiriquensis, 13. 

 Odontobaenidae, 144. 



Odontobaenus, 144. 



divergens, 144. 



obesus, 144. 

 Odontocoelus, 13. 



americanus louisianae, 14. 



rothschildi chiriquensis, 13. 

 olivacea, Mustela peninsulas, 142. 

 olivaceus, Blarina, 149. 

 olivaceus, Cryptotis, 149. 

 Ondatra, 79, 80. 



zibethica cinnamomina, 80. 



zibethica mergens, 80. 



zibethica zalophus, 79. 

 Onychomys, 42. 



leucogaster breviauritus, 43. 



leucogaster capitulatus, 42. 



leucogaster fuscogriseus, 43. 



torridus clarus, 42. 

 Oreamnos, 16. 



americanus americanus, 16. 



americanus columbiae, 16. 



americanus missoulae, 16. 



montanus columbianus, 16. 



montanus missoulae, 16. 

 oreas, Microtus miurus, 76. 

 orinomus, Bassaricyon gabbi, 131. 

 Orthogeomys, 82. 



cuniculus, 82. 

 orthotis, Nyctinomus, 163. 

 Oryzomys, 58. 



alfari incertus, 58. 



bombycinus, 58. 



carrikeri, 59. 



frontalis, 59. 



gatunensis, 60. 



idoneus, 62. 



nicaraguae, 60. 



ochraceus, 60. 



phaeopus, 61. 



pirrensis, 58. 



richardsoni, 61. 



spinosus, 62. 



osgoodi, Peromyscus maniculatus, 49. 

 Otospermophilus, 33. 

 Ototylomys, 56. 



fumeus, 56. 



guatemalae, 56. 

 Ovis, 1 6. 



calif ornianus, 16. 



canadensis gaillardi, 16. 



canadensis texianus, 17. 



cervina calif orniana, 16. 



