INDEX TO THE GENERA AND SPECIES DESCRIBED IN THIS VOLUME. 



|i 



Pagi 



Acidaspis 299 



ACROCULIA 288 



— angulaU 289 



— niagarensis 288 



APIOCTSTITES 2'12 



— elegans 2-13 



Arges phlycUnodes 314 



ABTHaOPHTCOS 4 



— barlani 5 



— ? 6 



ASTROCERIUM 120 



— constrictuiu 123 



— parasiticum 122 



— pyriforme 123 



— venustum 120 



Atrypa apriuis 280 



— bidens 69 



— bidentata 276 



— brevirostris 278 



— camura 273 



— • congesta 67 



— constrictura 123 



— corallifera 281 



— crassirostra 269 



— cuneata 276 



— cylindrica 76 



— — (?) 78 



— disparilis 277 



— cmacerata 71 



— cquiradiata 70 



— gibbosa 79 



— hemispberica 74 



— intermedia ". 77 



— interplicata 275 



— lamellata 329 



Page 



Atrypa naviformis 76 



— neglecta 70, 274 



— nitida 268 



— — rar. oblata .. 269 



— nodostriata 272 



— imcleolata 328 



— oblata 9 



— obtusiplicata 279 



— plano-convexa 75 



— plicata 10 



— plicatella? 279 



— plicatula 74 



— quadricostata 08 



— reticularis 72, 270 



— robusta 71 



— rugosa 271 



Avicula cmacerata 83, 282 



— limajformis 332 



— orbiculata 284 



— rhoraboidea 84 



— securiformis 331 



— subplana 283 



— subrccta 331 



— undata 283 



BcUerophon auriculatus 334 



Beyrichia lata 301 



— symmetrica 317 



Bronteus? niagarensis 314 



Bucania angustata 347 



— (?) bellapuncta 93 



— stigmosa 92 



— trilobata 13, 93 



— 334 



Bumastis barricDsis 299, 302 



P*GE 



Buthotrephis gracilis 18 



— - (?) 20 



— — var. crassa ... 19 



— — far. intermedia, 19 



— impudica 20 



— palmata 20 



— ramosa 20 



Calloctstites 238 



— jewettii 239 



— — tor.? 2.39 



Callopora 144 



— aspera 147 



— elegantula 144 



— florida 14G 



— laminata 146 



— nummiformis 148 



Calymene blumenbacbii, rar. 



niagarensis, 307 



— — rar. senaria 299 



— cameratum 337 



— clintoni 298 



Caninia bilateralis 41, 113 



Can.napora 43 



— junciformis 43 



CAETOCRINrS 215 



— ornatus 182, 216 



Catenipora esdiaroides 44, 127 



— agglomerata 129 



Ceeamopora 168 



— foliacea 170 



— imbricata 169 



— incrustans 169 



Ceraurus insignis 300. 306 



Chajtetcs lycoperdon 40 



