330 



INDEX. 



Area perforans 

 pusilla . 

 Quoyi 

 raridentata 

 tetragona 



Arcinella carinata 



Arcopagia 



Arctica 



Arctoe 



Arcturus 



Arenaria 



Argina 



Argus 



Artemis compta 



exoleta 

 ferruginosa 

 lentiformis 

 lincta 

 sinuata 



Asa 



Astarte angulata 

 antiquata 

 Arctica 

 Banksii 

 Basterotii 

 bipartita 

 borealis 

 Burtinii 

 compressa 

 cor rug at a 

 crebricostata 

 crebrilirata 

 cyprinoides 

 Damnoniensis 

 digitaria 

 elliptica 

 excurrens 

 Gairensis 

 Galeotti 

 gracilis 

 imbricata 

 incerta 

 incrassata 

 lactea 

 Icevigata 

 lirata 

 multicostata 



77 

 79 

 78 

 79 

 76 

 289 

 224 

 196 

 214 

 164 

 235 

 75 

 20 

 216 

 215 

 135 

 215 

 215 

 216 

 214 

 183 

 182 

 176 

 183 

 177 

 180 

 175 

 188 

 183 

 176 

 186 

 184 

 176 

 182 

 190 

 181 

 191 

 181 

 185 

 185 

 212 

 186 

 176 

 176 

 174 

 185 

 183 



Astarte mutabilis 

 nitida 

 nitidula 

 obliquata 

 oblonga 

 O'Malii 

 ovalis 

 parva 

 parvula 

 pallida 

 pisiformis 

 plana 

 planata 

 propinqua 

 pulchella 

 pygmaea 

 rugata 

 Scotica 

 semisulcata 

 striata 

 subtrigona 

 sulcata 

 triangularis 

 vulgaris 



Atrina 



Auriscalpium 



Avicula aculeata 

 Anglica 

 Atlantica 

 hirundo 

 Tarentina 



Axincea 



Aximedia 



Axinw 



Azor variabilis 



Banfcia 



Barnia 



Barbatia 



Beguina 



Bequania 



Biapholius 



Bontcea 



Bornia 



Brachydontes 



Bucardia 



Byssoarca 



Byssomya 



PAGE 



179 



177 



178 



189 



180 



180 



182 



192 



175 



182 



188 



176 



179 



185 



183 



187 



180 



182 



176 



183 



173 



182 



173 



182 



49 



263 



51 



51 



51 



51 



51 



65 



97 



133 



223 



298 



294 



75 



164 



133 



284 



263 



117 



55 



193 



75 



284 



