IXDKX. 517 



Page. 



Niggerhead Mountain I l 



Nogab Arizona L3, I I. L5, 17, L06 



reptiles collected at . - I "7 



Nolina bigelovii II 



Bigelow 11 



North American life areas, I >octor Merriam's classifical ion of 72 



Norway rat 364 



Nuevo Leon rock-squirrel 324 



Oak, Arizona white 5] 



blue 50 



I alifornia Mack 5 I 



live 53 



scrub 52 



canyon live 52 



Durand 50 



Eiiu ny 52 



Engelmann 50 



Gambel 19 



highland live 54 



Helical'. 51 



oblong leaf 50 



Rocky Mountain 50 



Texas red 54 



Tourney 51 



whiteleaf 5:! 



Ocean Beach 22 



Odocoileus 170 



couesi 175 



record of specimens of, collected 184 



cr< »oki 11, 185 



cranial measurements of i wo specimens of 189 



hemionus californicus '-Ml 



canus I'M 



table of cranial measurements of 203 



i Ten i i ci is J(|s> 



key to the Mexican Boundary forms of 171 



texanus 171 



Ojo, I. ewer California 134 



Ojos ile los Mosquitos, < Ihihuahua. 86 



< >ld Fort Bliss, Texas 9 



Yuma, < California L29 



Olidosus 160 



( Uneya tesota 62 



Onychi imys 367, 368, 390, 402, 112 



fuliginosus 371 



Ieucogaster 368 



longipes '■'•*''■* 



melanophrys 371,372 



pallescens 371,377 



torridus 368,374 



arenicola 375, 376, :;77 



perpallidus 376,378 



ramona 379 



Opossum, Texas 150 



