INDEX TO THE GENERA AND SPECIES DESCRIBED IN THIS VOLUME. 



Faoc. 

 AciDAspis 240 



— spiniger 241 



— trentonensis 240 



Actinocrinus tenuiradiatus ... 18 



-,- ? (imiet.) 13 



Agnostus lobatus 3')8 



Alecto inflata 77 



Ambonycmia 1G3 



— amygdalina 165 



— bellastriala 103 



— carinata.. 204 



— obtusa 106 



— orbicularis 104 



- — radiata 292 



— undata 165 



— ? (inrfrt.) 166 



Asaphus ? extans 228 



— latimarginata 233 



— marginalis 24 



— nodostriatus JtS 



-r ? obtusus 24 



Asterias matutina 01 



— ? (indet.^) IS 



Atrypa acutirostra 21 



— altilia 23 



— ambigua 143 



— bisulcata 130 



— circulus 142 



— cugpidata 1 38 



— deflerU 140 



— dentata 14S 



— dubia 21 



— exigua 141 



— extans 137 



— hemiplicata 144 



, — incrcbescens . . 1 46, 289 



— modesta 141 



— nucleus . 13S 



— plena 21 



I'iGI. 



Atrypa plicifera 22 



— recurvirostra 140 



— sordida 148 



— subtrigonalis 145 



. — (mrfet.) 145 



Aulopora arachnoidea 70 



Avicula demissa 292 



— ? destjuamata. j'.j-.i,"..^ 292 



— elliptica . .... ..... 1C2 



— insueta 291 



— trentonensis 161 



Bellerophon bilobatus . . 1S4, 307 



— — ear. acutus .... 185 



— — var. corrugatui . 185 



— cancellatus 307 



BvcAiriA 32 



— bidorsata 186 



— expansa 180 



— intexta 317 



— punctifrons 187 



— rotundata 33 



— sulcatina 32 



BVTHOTaEPHIB 8 



— antiquata 8 



— ? flexuosa 263 



— gracilis 62 



— subnodosa 202 



— succulens 62 



Calymene beckii 237, 250 



— multicosta 228 



— gcnaria 23S 



— (indet ) 253 



Cameroceras 221 



— trentonense 221 



Capulus auriformis 31 



Cardiomorpha vetusta 154 



Cariraropsis 183 



— carinata 183 



— orbiculatiTb 306 



Pabi. 

 Carinaropsis patelliformis, 183, 300 

 Ceraurus pleurexanthemus . . 242 



— ? pustulosus 240 



— vigilans 245 



— ? {indet.) 25 



Chaitetes columnaris 08 



— lycoperdon 04, 270 



— lycoperdon .' 48 



— ? rugosus . .'. 07 



— — .' 18 



Cleidofhorus 300 



— planulatus 300 



Columnaria alreolata 47 



Conularia gracilis 224 



— granulata 223 



— papillata 223 



— trentonensis 222 



Crinoidal columns 51, 80 



Crinoidea, bases of attachment, 86 

 Cyrtoceras annulatum 1 94 



— arcuatum 190 



— camurum 196 



— constrictostriatum .. 195 



— lamellosum 193 



— macrostomum 1 04 



— multicameratum .... 195 

 Cyrtolites comprcssus 168 



— filosum 189 



— ornatus 308 



— trentonensis 180 



Cytherina (indef.) 44 



Deltliyris biforatus, oar. lynx, J 33 

 DiSCOPHYLLUM 277 



— peltatum 277 



ECHINO-ENCRINITES 87 



— anatiformis 80 



Edmondia subangulata 150 



— subtruncata 150 



— ventricosa.. 155 



