INDEX OF GENERA AND SPECIES. 



287 



Page. 



Crinoidea 26, 33, 37, 40, 41, 42, 43, 44, 45, 55, 



118, 121, 127, 133, ':55, 262 



Crinoideae 232 



Criocardium 99, 268, 271 



nucleolus 371 



Criptogamia 128 



Cnicibulum 212,214 



spinosum 313, 214 



Crustacea 31, 36, 39, 46, 55, 56, 57, 58, 59, 61, 65, 



67, 68, 74, 79, 80, 81, 89, 91, 108, 109, 

 121, 126, 129, 136, 148, 149, 153, 159, 

 179, 191, 195, 227, 234, 235, 250, 257 



Cruziana 126,128 



liunarssoni 136, 128 



rustica 136, 128 



Crypta prterupta 50 



Cryptoceras 39,104 



Cryptogranima floiidana 220 



?peuita 220 



Cryptomya 215, 21 6 



ovalis 315, 216 



Cryptonella 193 



?circula 193 



piiionensis 193 



Cryptorhytis 103 



Ctenobrancliiata 34 



Ctenoides acutilineata 47 



denticulata 47 



squarrosa 47 



Cucultea 98, 111, 208, 209, 218 



exigua 16 



haguei Ill 



(Idonearca ?) cordata 98 



nebrascensis 98 



shumardi 98 



lintea 308 



nebrascensis 350 



ononcheila 220 



opiformis 309 



paraklla 308 



snbrotunda 308 



terminalis 318 



transversa 220 



(Trigonarca ?) obliqua Ill 



! Cucullaearca 98 



Cuciillifera 333 



Cupellffiocrinus 38 



Cyatbaxonia 52 



Cyatbocrinites 54, 82, 87 



fragilis 54, 82 



; poterium 83 



sculptilis 82 



tenuidacty lu8 54, 82 



Cyatbocrinus 23, 26, 37, 38, 42, 43, 45, 53, 60, 81, 



117,118,150,154,163,249,251 



? 19 



angulatus 33, 43 



arboreus 38, 60 



cocnutus 349, 251 



? crassus 33 



enormis 37, 60 



farleyi 40, 60 



granuliferns 255 



inflexus 52 



iowensis 349,251 



Pago. 



Cyatbocrinus kelloggi 118 



lamellosus 117 



mnltibracbiatus 154 



? poterium 64 



quinquelobus 37, 60 



ramosus 52 



rigidus 118 



saffordi 33,43 



sangamonensis 33, 45 



scitnlus 33,27 



sculptilus 27, 42 



stillativus 150, 1G3 



subtumidus 37 



wacbsmutbi 36, 60 



Cyatbophycus 186 



reticulatus 186 



snbspbericus 186 



Cyatbophyllidae 62, 108, 109, 121, 223 



Cyathopbyllideae 232 



Cyathopbyllnm 62, 108, 109, 223 



? 193 



articum 63 



caliculare 347 



(Campopbyllum ?) neva- 



dense 109 



corintbium 347 



comiculum 192 



davidsoni 192 



heliantboides 247' 



palmeria 108 



prof undum 248 



rugosum 192 



subcaespitosiun 109 



turbinatum ? 247 



undulatumetmnltiplicatum 347 



vesiculosum ? 247 



Cyathopora iowensis 247 



Cyclas 99,215,217 



estrellana 317 



formosa 15 



fragilis IS 



permacra 50,317 



subellipticus ig 



tetrica 315 



Cyclina ? circularis 48 



Cyclobrancbiata 34 



Cyclonema 79, 80, 148 



bilix 79,148 



crenulata 67, 80 



Cy clopteris 246 



moquensis 346 



Cyclora 79 



minuta 79 



? parvula 79 



Cylicbna loi 



dekayi 220 



petrosa 50 



scitula 31,101 



? volvaria loi 



Cylicbnidas loi 



Cylindrites 29 



Cymatopleura ? campylodiscus 303 



Cymbella gibba 303 



Cymbopora 100 



CymeUa 48,101,134,261,264,268 



