336 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY 



Odocoileus, 13. 



acapulcensis, 14. 

 americanus, 14. 

 borealis, 14. 

 califoniicus, 16. 

 cerrosensis, 14. 

 columbianus, 15. 

 couesi, 15. 

 crooki, 15. 

 eremiciis, 1(5. 

 hemiomis, 15, 16. 

 leucurus, 10. 

 macroiirus, 14. 

 mexicanus, 16. 

 nelsoni, 16. 

 osceola, 17. 

 penin-sulae, 16. 

 scaphidtus, 15. 

 sitkensis, 15. 

 speleus, 13. 

 texensis, 17. 

 thomasi, 17. 

 toltecus. 17. 

 truei, 17, 300. 

 oerstedi (Chry.sothrix), 298. 

 oerstedii (Chrysothrix), 297. 

 oerstedii (Saimiri), 297. 

 olivaceus (Perognathus), 159, 305. 

 olivaceus (Spennophilus), 56. 

 olympica (Aplodontia), 64. 

 olympica (Spilogale), 216. 

 olympicus (Phenacomys), 112. 

 olyuipiciLS (Sciuropterus), 60. 

 olympu.s (Arctomys), 59. 

 olympus (Feli.s), 198. 

 onca (Felis), 198. ^ 



Onychomys, 66. 



arcticeps, 06. 

 arenicola, 67. 

 brevicaudus, 66. 

 fuliginosu.s, 00. 

 leucoga.ster, 66. 

 longicaudus, 66. 

 longipes, 66. 

 melanophry.s, 67. 

 o.sceola, 17. 

 palle.'^ceiis, 67. 

 perpallidiis, ()7. 

 ramona, 67. 

 torrid us, 67. 

 operarius (Arvicola), 120. 

 operarius (Microtus), 120. 

 operariiLS (Thomomys), 147. 

 oramontis (Phenacomys), 302. 

 orarius (Scapanus), 251. 

 orarius (Sciurus). 301. 

 orarius (Zapus), 168. 

 orca (Evotoniys), 113. 

 ordi (Perodipus), 154. 



ordii (Dipodoinys), 154. 

 ordii (Perodipus), 153, 154. 

 Oreamnos, 23. 



kennedyi, 23. 

 inontanus, 23. 

 oreas (Peromyscus), 82. 

 oregonensis (Felis), 198. 

 oregoneiLsis (Felix), 198. 

 oregonensis (Pteromys), 61. 

 oregonensis (Putorius), 225. 

 oregonensis (Sciuropterus), 61. 

 oregoni (Arvicola), 127. 

 oregoni (Microtus), 127, 304- 

 oregonus (Arvicola), 127. 

 Oregon us (Bassari.scus), 2.30. 

 oregonus (Sperniophilus), 54. 

 oregonus (Zapus), 167. 

 oreocetes (Cratogeomys), 139. 

 oreocetes (Eutaniias), 42. 

 oreopolus (Sorex), 239. 

 oriba.sus (Putorius), 224. 

 orizabae (Lepus), 188. 

 orizabae (Neotonia), 107. 

 orizabae (Neotoinodon), 110. 

 orizabae (Peromyscus), 80. 

 orizabae (Sorex), 238. 

 orizabae (Thomomys). 147. 

 ornatus (Dipodomys), 151. 

 ornatas (Sorex), 240. 

 orolestes (Neotoma), 107. 

 orophila (Blarina), 247. 

 orophilus (Phenacomys), 111, 

 Orthogeomys, 140. 



grandis, 141. 



latifrons. 141. 



nelsoni, 141. 



scalops, 141. 

 orthotis (Nyctinomus), 273. 

 Orthriomys, 129. 

 Oryctolagus, 184. 

 Oryctomys bottae, 144. 

 Oryzomys, 91. 



alfaroi, 92. 



autillarum, 92. 



aquaticus, 92. 



bulleri, 92. 



chapmani, 92. 



clierriei, 95. 



chrysomelas. 92, 100. 



coloratus, 94. 



costaricensis, 92. 



couesi, 92, 93. 



fulgens, 93. 



fulvescens, 93. 



gracilis, 93. 



jalapae, 93. 



melanotis, 93. 



mexicanus, 93. 



natator, 94. 



