286 



INDEX OF GENERA AND SPECIES. 



Page. 



Corbicula (Cyrena ') eecuris 76 



cytheriformis 105, 160, 169 



?eipacerata 366 



? fracta TO 



? var. crassiascala 77 



(LepteBthes) cardinieefomiis 169 



fracta 160,168 



macropistha . 1 41 , 160, 168 

 planumbona . 88, 160, 169 



sabelliptica 105, 160 



subelliptica var. 



morcauensis 105 



nebrascensis 105, 160, 168 



nncalis 70, 99 



obesa 140, 160,169 



occiilentalis 105, 160, 168 



powclli 137 



pyriforniis 168 



subelliptica 168 



? subti igonalis 70, 99 



umbonella 168 



(Veloritina) bannisteri 77 



cy tlierifonnis 77 



durkeei 112,160,168 



iuflexa 76 



Corbie lamellosa •- 220 



Corbula 47, 95,101, 105,111,112,134, 137,143, 



160, 207, 208, 210, 211, 213, 218, 219, 269, 272 



aleihensis 310 



(Anisorhynchus?) engelmanni 112 



pyriforniis 95, 112 



congesta S07 



crassatelliformis 160 



crassimarginata 101 



crassiplica 269 



dlegoana 311,213 



dnbiosa 145 



engelmanni 95 



cvansana 356 



foulkei 269 



? gregaria 15 



inomata 18,101 



mactrifonnis 15,161,168 



moreauensia 15 



nasnta 219 



nematopora 76, 134, 143 



(Nesera) nasntoides 373 



occidentulis 318 



(Pachydon) mactriformis 105 



perundata 105 



nnbtrigonalia 105 



perundata 15, 160 



(Potamomya ?) concentrica 33 



engelmanni 33 



pyriformis 33 



pyriformis 161 



sabcompressa 269 



sublineolata 308 



Bubtrigonalis 15, 160, 168 



subundifera 137 



syriaca 208 



tropidophora 77, 160 



undifera 77,161,168 



var. subundifera 161, 168 



Tentricoea 15 



I'ago 



Corbulamella 18, 101 



gregaria 18, 101 



Oorbulidas 101,10.5,111, 112,134,209,272 



Cordieria moorei 221 



Corimya 269 



tenuis 369 



Comiilina anuigt-ra 222 



Coroccras IIO, 339 



Cosceneis 203 



Costella 107 



Crania 1 19, 121 , 1 77, 257 



modesta 131, 177 



pemiiana 357 



roposita 119 



sheldoni 119 



Craniid^e 121 



Craasatella 93, 99, 143, 208, 211, 213, 217, 237, 260 



263, 208, 270, 271 



alta 311,213,271 



cimarronensis 143 



coUina 317 



conradi 370 



cuueata 268 



declivia 337 



delawarensis 268, 270 



evansii 13 



moumoulhensis 268 



obhquata 371 



(Pachythsems) evansi 99 



prora 268 



shumardi 93 



subplana 268 



subquadrata 360, 263 



syriaca 308 



transversa 268 



uva.sana 311, 213 



vadosa 268 



Crassatellidffi 30, 32, 33, 34, 99, 260, 262, 263, 268 



Crassatellina 70, 99 



oblonga 70, 99 



Crenclla 28,98 



concentrica 220 



elegautula 38, 98 



granulata cancellata 47 



Crenipecten 196 



ballanus , 196 



Crepicephalus 234, 350, 259, 260, 261 



(Bathyums ?) angulatus 334 



centralis 261 



(Loganellus) anytus 334 



centralis 360 



granulosu.s 334 



hagaei 334 



macnlosus 334 



montanensis. . . 359 



nitidus 334- 



planus 360 



?quadrans 334 



simulator 334 



unisulcatns 334 



planus 261 



Crepidala 212,214 



J 206 



prserupta .50, 306 



princepg 3 1 3, 214 



