INDEX TO THE GENERA AND SPECIES DESCRIBED IN THIS VOLUME. 



Pagb 



Acidaspis — 299 



ACROCULIA 288 



— angulata 289 



— niagarensis 288 



Apiocystixes 242 



— elegans 243 



Arges phlyctanodes 314 



Aetheophtcus 4 



— harlani 5 



— ? 6 



ASTEOCEKITJM 120 



— constrictum 123 



— paraaiticum 122 



— pyriforme 123 



— venustum 120 



Atrypa aprinis 280 



— bidens 69 



— bidentata 276 



— brevirostris 278 



— camura 273 



— congesta 67 



— constrictum 123 



— corallifera 281 



— crassirostra 269 



— cuneata 276 



— cylindrica 76 



— - (?) 78 



— disparilis 277 



— emacerata 71 



— equiradiata 70 



— gibbosa 79 



— hemispherica 74 



— intermedia 77 



— interplicata 276 



— lamellata 329 



Page 

 Atrjrpa naviformis 76 



— neglecta 70, 274 



— nitida 268 



— — var. oblata . . 269 



— nodostriata 272 



— nucleolata 328 



— oblata 9 



— obtusiplicata 279 



— ■ plano-convexa 75 



— plicata 10 



— plicatella? 279 



— plicatula 74 



— quadricostata 68 



— reticularis 72,270 



— robusta 71 



— rugosa 271 



— 78 



ATicula emacerata 83, 282 



— limseformis 332 



— orbiculata 284 



— rhomboidea 84 



— securiformis 331 



— subplana 283 



— subrecta 331 



— undata 283 



Bellerophon auriculatus 334 



Beyricbia lata 301 



— symmetrica 317 



Bronteus? niagarensis 314 



Bucania angustata 347 



— ( ?) bellapuncta 93 



— stigmosa 92 



— trilobata 13, 93 



— 334 



Bumastis barriensis 299, 302 



Page 

 Buthotrephis gracilis 18 



— — (?) 20 



— — var. crassa ... 19 



— — var. intermedia, 19 



— impudica 20 



— palmata 20 



— ramosa 20 



Calloctstites 238 



— jewettii 239 



— — var.? 239 



Callopoba 144 



— aspera 147 



— elegantula 144 



— florida 146 



— laminata 146 



— nummiformis 148 



Calymene blumenbachii, var. 



niagarensis, 307 



— — var. senaria 299 



— cameratum 337 



— clintoni 298 



Caninia bilateralis 41, 113 



Cannapoka 43 



— junciformis 43 



Caetoceinds 216 



— ornatus 182, 216 



Catenipora escharoides 44, 127 



— agglomerata 129 



Cebamopoea 168 



— foliacea 170 



— imbricata 169 



— incrustans ._ 169 



Ceraurus insignis 300. 306 



Chsetetes lycoperdon 40 



