840 ^ INDEX OF SYSTEMATIC NAMES. 



Page. 



ffidipoda tenebrosa 721 



verruculata 721 



Oligotomus cinctus 607 



Ommatolanipis viridis 724 



Onagraceas 706 



Opegrapha antiqua 390 



Ophidia 632 



Ophileta 208 



Ophioglossum allpui 371 



Opoiiiala bivittata 724 



Orchidacese 783 



Oreoscoptes montanus 670, 705 



Orobauchacese 774 



Orobippus ]5rocyoninus 606 



Orotberium syl vatieum 607 



vasacciense 606 



Ortbis ..:. 168 



Ortboptera 719 



Oscines 670,704 



Ostrea 21,110,116,120,171 



anomioides ^ 488 



soleniscus 487 



"wyomingensis 508 



Otus wilsoniaous 695 



Palseosyops laevidens 591 



major 592 



vallidens 592 



Paliurus colombi 388 



zizypboides 384, 397 



Palmacites 377 



Pandion carolinensis 698 



Papaveracese 759 



Pappicbtbys 634 



corsouii 636 



lajvis 636 



plicatus 635 



sclerops 635 



sympbysis 636 



Paramys delicatior 610 



delicatissimus 610 



delicatus 610 



leptodos 609 



undans 610 



Paridse 672 



Parinje 672 



Paras montanus 672 



Passerculus alaudinus 679 



Passerella scbistacea - 707 



Passeres 670,704 



Pealite 154 



Pedioecetes phasianellus 699 



Perisoreus canadensis '. 689 



Perissodactyla 562, 591 



Petrocbelidon lunifrons 676 



Peziza vulcanalis ». 792 



Pbalaropodidaj •. 701 



Pbalaropus wilsonii 701 



Pbarella pealei ,. 496 



Pbareodon acutus 637 



sericeus 638 



Pboladomya 120 



Pbragmites ceningensis 374,376,383,391,390 



Pbysa bridgerensis 516 



carletoni 1... 508 



Pica budsonica 687 



Picidse 693 



Picoides arcticus 694 



dorsalis 694 



Picas harrisii 693 



