INDEX. 



697 



Page. 



Notropis mearnsi 574, 582, 583 



Nucella, notes on the species of the molluscan 

 subgenus, inliabiting the north- 

 west coast of America and adjacent 



regions 557 



canaliculata 558, 560, 561 



emarginata 559, 560, 561 



freycinetii 561 



lameUosa 558, 560, 561, 562 



lapiUus 557,562 



lima 561 



Nysson (Bathystegus) basirufus 247 



Oberholser, Harry C, a synopsis of the races 

 of the crested tern, 

 Thalasseus bergil 



(Lichtenstein) 515 



Critical notes on the 

 subspecies of the 

 spotted owl, Strix 

 occidentalis (Xan- 



tus) 251 



Octhiphila 151 



Ocypode albicans 555 



Oc5rptera euchenor 631 



flavifrons 530 



Oe3T)terodes 631 



Ocypteropsis 630 



Odontosoma 633 



Odynerus margartellus 242 



(Stenodynerus) anacardivora 241 



bla-ivus 240 



odontoschius 241 



var. dichrous 241 



precampanu-, 



latus 240 



Oecophylla atavlna 485 



megarche 486 



perdita 485 



Oedematocera 621 



Oedematopteryx 633 



Oestrogastrodes 425 



sinulis 425 



Oestrogastropsis 424 



mexicana 425 



Olindias phosphorica 401 



singularis 401 



Ollndioides formosa 401 



Oncophanes atricaudus 92 



Oolite from Bethlehem, Pennsylvania 153 



Oomeigenia 434 



chosica 435 



Ophiogomphus morrisoni 336 



occidentis 270, 289, 333, 338, 341 



severus 266, 270, 338, 341 



Opiinae, a revision of the North American 



Ichneumon-flies of the subfamily 63 



Opius aberrans 86 



americanus 91 



amplus 82 



anastrephae 81 



annulicornis 78 



anthomyiae 74 



apicalis 85 



appalachicolus 72 



aridis 88 



ashmeadl 78 



atrlceps 91 



baslnger 82 



Page. 



Opius bicarinatus 94 



bruneipes 88 



brunneitarsis 77 



bruimeiventris 81 



canadensis 93 



canaliculatus 80 



cincticornis 78 



cinctus 81 



coloradensis 83 



commodus 87 



crassiceps 78 



crawfordi 73, 77 



diastatae 88 



dimidiatus 86 



ehrhorni 87 



(Eutrichopsis) agromyzae 86 



ferruginous 75 



flaviceps 76 



foersteri 83 



forticornis 92 



fovcolatus 74 



fuscipennis 79 



gracillariae 90 



grenadensis 92 



indotatus 74 



insularis 87 



interstitiaUs 86 



irridipennis 92 



kukakense 74 



luteiceps 85 



mandibularis 81 



melanocephalus 88 



melleus 73 



mellipes 83, 92 



montanus 86 



nanus 90 



niger 93 



nigrocastaneus 83 



oscinidis 90 



pallipes 92 



politus 74 



provancheri 81 



rejectus 93 



ruficeps 81 



rufocinctus 84 



salvini 88 



sanguinea 74 



sanguineus 74 



secundus 72 



striativentris 89 



succineus 81 



suturalis 89 



tantillus 86 



tibialis 85 



unifasciatus 86 



utahensis 82 



(Utetes) anastrephae 81 



variabilis 93 



vierecki 76 



Oregon and ^^'ashulgton, notes on the life 



history and ecology of the dragonflies of . . 259 



Orimarga borneensis 170 



javana 170 



Ornepetes silvicola 233 



Ornitholestes hermani 507, 510 



Orthopelma luteolator 226 



Orthophlebia commimis 475 



Intermedia 476 



