611 



INDEX. 



Page 



Ammonites Orbignyanus 463 



Ammonites penearinatua 43, 455, 457 



Aw moil ids Pierdenalis 403, 473, IT.". 



Ammonites placenta 462, 4(j. r >, 4(17, 170 



Ammonitfs Requicnamis 464 



Animonites 8i iralo-enrinutus 452, 454 



Ammonites spinatus 451!, 454 



? Ammonites syrtalis 408,470,471,472 



.'Ammonites Tamulious 408,471 



Ammonites Vcrmilionense 450 



Ammonites vespertinus 448 



Ammonites woolgari 453,454,455,457 



Ampelita 593 



Ampullaria 311 



Ampnllina . 312,313 



. 1 in iissinm 24, 27 



A mygda him 69 



Anchura 321 



Anchura 324 



Anchura dbrvpla 324 



Anchura (Drepauochilus) Americana 325 



Anchura (Drepauochilus) Nebrascensis 326 



Anchura loeviuscula 327 



Anchura '? parva 328 



Anchura sublevis 327 



Ancyx.id.2G 543 



Ancyloceras 408 



Ancyloceras 487, 488 



Ancyloceras ? Cheyennense 483 



Ancyloceras (Hamites) uncum 409 



Ancyloceras Matheronianum : 408 



. 1 n cyloceras ? Nebrascense 480 



Ancyloceras? uncum 409 



ANCYi.ocicnATin.E 408 



Ancylocerus 408 



Aneyhis (Acroloxas) minutus 513 



Ancyhis laetistris 543 



A nij utiles 489 



Angulus 192 



Angulus 193 



Anisocardia 149, 130 



Anisocardia t legans 149 



Anisoinyon ; ." 285 



Auisomyou alveolus 292 



Anisorayou borealis 288 



Anisoinyon patelliformis 290 



Auisomyon Shnmardi 289 



Auisomyou sexsulcatus 293 



Auisorbyncbus 241 



Anisorhynchus 240,213 



Anisothyris 240,242 



Anisus 530 



Anisns 534,603 



Annulata 506 



Anodonta 5K; 



Anomia •.'! 



Anomia argentea 22 



Anomia epihippium 21 



Pngo. 



Anomia ? obliqna 22 



Anomia ? subtrigonalis 22 



AxoMiin.E 21 



Anomya 21 



Anonica 28 



Antale 268,209 



Antalis 207 



Aphrodina 179 



Aphrodina 178 



Aple.ru subelongala 540 



Aplexus 540 



Aporrhaidse 320 



Aporrhaida 323 



Aporrhais 320 



Aporrhais Americana 325 



Aporrhais biaugulata 322 



Aporrhais Nebrascensis 326 



Aporrh a is parva 328 



Aporrhais sublevis 3„7 



Aporrhas sublevata "27 



Area 80,81,83 



A rca barbata . ' ' 



Area Carolinensis 78 



Area centenaria 78 



Area concamerata 83 



Area (Cuculleva) cordata 89 



Area e.rigna 93 



Area glycimeris ''4 



Area heterodonta 82 



Area nucleus 98 



Area? parallela 80 



Area propaiula * 79 



Area sulcatwa ■ 



AliCID/E - ■- '0 



Areidw 28,64,82 



Arcopagella 200 



Arcopagella 201,203 



Arcopagella ? macrodont.a 202 



Arcopagella mactroides 202 



Arcopagella mactroides 200 



Arcopagia 195,198,201,007 



Arciica 144 



Argobuceiiium Oregonense 3m 



Argodvrma 23 



Argonautiles 445 



Argus 23 



An lioges 321 



.1 irhogcs 320, 322 



Akticui.ata 501) 



Arvellana 283 



Arvellana 282 



Arvi liana coneinna 284 



Arvellana ina-assata 283 



Arvellana subylouosa 284 



Ascoceras 493 



Assiminia 574 



Assiminia en ii monies 574 



Astarte 121 



