INDEX 335 



obliquidens. Lagenorhynchus 40 



obscums. Evotomys 125 



Sorex 251 



oceidentalis holzneri. Mephitis 239 



major. Mephitis 238 



Mephitis 236 



Ochotona. Cieuus 180 



schisticeps 181 



Ochotonidffi. Family 180 



ochrogenys. Butamias townsendi 85 



ochropus. Canis 213 



Odocoileus. Genus 48 



columbianus 53 



scaphiotus 54 



hemionus 48 



californieus 51 



eremicus 50 



olivaceus. Perognathus parvus 165 



olympus. Felis hippolestes 208 



Onychomys. Genus 101 



torridus longieaudus 103 



perpallidus 102 



ramona 101 



tularensis .... 103 



operarius. Thomomys 147 



crarius. Zapus 176 



Orcinus. Genus 35 



ater 35 



rectipenna 35 



Oreamnos, Genus 61 



montanus 61 



oreas rubidus. Peromyseus 106 



oregonensis stephensi. Sciuropterus 106 



oregoni. Microtus 131 



Oregon Finback Whale 20 



Meadow-Mouse 131 



ornatus. Sorex 252 



orophilus. Phenacomys 123 



Otariidae. Family 201 



