251 



Auricella 178. 

 Auricula. Lm. 173. 

 Sw. 140. 

 Auriculacea 171. 

 Auricularia 42. 

 Auriculea 172. 

 Auriculella 153. 

 Auriculidae 171. 

 Auriculina. Grtlp. 42. 

 ,, Gray. 44. 



Auriculiuae 172. 

 Auriculus 173. 

 Auiiformis 38. 

 Aurinia 25, 

 Auris. Huinph. 38. 



„ Klein 95. 



„ Spix 140 

 Auriscalpium 198. 

 Ausoba 25. 

 Australicae 169. 

 Avicula 235. 

 Aviculidae 235. 

 Axina. Alb. 123. 



Mörch. 138 

 Axinaea 239. 

 Axiiiaeinae 239. 

 Axinoderma 239. 

 Axinopsis 223. 

 Axinus 222. 

 Azara 197. 

 Azarella 225. 

 Azeca 157. 

 Azecastnim 157. 

 Azor. Gray 196. 



„ Leach. 202. 



Babylonia 18. 

 Bacaüa 66. 

 Bacula 45. 

 Baikalia 72. 

 Balantium 2. 

 Balaea 161. 

 Balcis 44. 

 Balea 161 

 Baleastra 161. 

 Balia 161. 

 Banatica 162. 

 Bankia 194. 

 Bankivia 92. 

 Baphia 231. 

 Barbala 231. 

 Barbata 231. 

 Barbatia 238. 

 Bariosta 225. 

 Barleia 73. 

 Barnea 193. 

 Barnia 193. 



Bartellettia 233. 

 Basi Stoma 65. 

 Batillaria 58. 

 Batiilus 86. 

 Batissa 217. 

 Beguania 222. 

 Beguina 225. 

 Bela 8. 



Belgrandia 72. 

 Bembicium 68. 

 Benedictia 70. 

 Benedictiinae 70. 

 Bensonia. Pfr. 113. 

 „ Cautr. 70. 



Bevendtia 147. 

 ßerendtinae 147. 

 Berpolis 232. 

 Berfhella 108. 

 Bezoardica 35. 

 Biapholius 196. 

 Bicatillus 79. 

 Biconia 79. 

 Bifrontia 47. 

 Bigibbosa 162. 

 Binneya 142. 

 Binodata 162. 

 Binovoluta 55. 

 Birostra 55. 

 Birostris 55 

 Bithynia 70. 

 Bithyniinae 70. 

 Biforquata 162. 

 Bittium 58. 

 Bivonia 78. 

 Blainvillia 200. 

 Blandia 190. 

 Blanfordia 179. 

 Blauneria 173. 

 Böttgeria 162. 

 Bolania 181. 

 Bolma 87. 

 Boltenia 109. 

 Bombyxinus 69. 

 Bonellia 45. 

 Bontia 198 

 Bornia 223. 

 Borns 140. 

 Bostryx 143. 

 Botula 235. 

 Bonchardia 247. 

 Boiirciera 189. 

 Bourcierea 189. 

 Boysia 158. 

 Brachiopoda 247. 

 Brachydontes 234. 

 Brachypodella 148. 

 Brachypodisca 148. 



Brachypus 148. 

 Brachyspira 169. 

 Brachytoma 8. 

 Bradybaena 121. 

 Brechites 194. 

 Brephulus 150. 

 Brochina 77. 

 Brochus 77. 

 Broderipia 95. 

 Brontes 3. 

 Brownia 3. 

 Bryopa 194. 

 Bncardiidae 220. 

 Bucardiutn. Gray. 218. 



Mhlfld. 220. 

 Bnccardium 218. 

 Buccinanops 15. 

 Buccinella 55. 

 Buccinidae 14. 

 Bnccinopsis 7. 

 Buccinnlus 105. 

 Bnccinnm 14. 

 Buccodes 194. 

 Buckleyia 182. 

 Bufo 13. 

 Bulbns. llumph 21. 



,, Brown 36. 

 Biilgarica 162. 

 Bulimella 153. 

 Buliraidae 140. 

 Bnlimina 150. 

 Buliminidae 150. 

 Buliraiuus 150. 

 Bulimnea 174. 

 Bulimnlidae 142. 

 Buliraulus. Leach. 143. 

 „ Riss. 150. 



„ Wood. 156. 



Bulimus 140. 

 Bnlinus 176. 

 Bulla. Klein 106. 



„ Sw. 107. 

 Bullaea. Lm. 107. 



Roiss. 107. 

 Bullaeidae 107. 

 Bullea 106. 

 Bullearins 106. 

 Bullia 15. 

 Bulliana 15. 

 Bullidae 106. 

 Bullina. BIvlI. 106. 



Fer. 105. 

 Bullinula 105. 

 Bullus 106. 

 Bursa 13. 

 Busycon 6. 

 Butor 198. 



