251 



Auricella 178. 

 Auriciila. Lm. 173. 

 Sw. 140. 

 Auriculacea 171. 

 Auricularia 42. 

 Auriculea 172. 

 Auriculella 153. 

 Auiiculitlae 171. 

 Auriculina. Grtlp. 42. 

 Gray. 44. 

 A(iiiciilinae 172. 

 Auriculus 173. 

 Auiiformis 38. 

 Aurinia 25. 

 Auris. Humph. 38. 



„ Klein 95. 



„ Spix 140 

 Anriscalpium 198. 

 Ausoba 25. 

 Australicae 169. 

 Avicula 235. 

 Aviciilidae 235. 

 Axina. Alb. 123. 



Mörch. 138. 

 Axinaea 239. 

 Axiiiaeinae 239. 

 Axinoderma 239. 

 Axinopsis 223. 

 Axinus 222. 

 Azara 197. 

 Azarella 225. 

 Azeca 157. 

 A zecastrum 157. 

 Azor. Gray 19(). 



„ Leach. 202. 



Babylonia 18. 

 Bacalia 66. 

 Baciila 45. 

 Baikalia 72. 

 Balantiuna 2. 

 Balaea 161. 

 Balcis 44. 

 Balea 161 

 Baleastia 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. 

 Basistoma 65. 

 Batillaria 58. 

 Batillus 86. 

 Batissa 217. 

 Beguania 222, 

 Beguina 225. 

 Bela 8. 



Belgrandia 72. 

 Bembicium 68. 

 Benedictia 70. 

 Benedictiinae 70. 

 Bensonia. Pfr. 113. 



„ Cautr, 70. 



Berendtia 147. 

 Berendtinae 147. 

 Berpolis 232. 

 Berthella 108. 

 Bezoardica 35. 

 Biapholius 196. 

 Bicatilius 79. 

 Biconia 79. 

 Bifrontia 47. 

 Bigibbosa 162. 

 Biuneya 142. 

 Binodata 162. 

 Binovoluta 55. 

 Birostra 55. 

 Birostris .55 

 Bithynia 70. 

 Bithyuiiuae 70. 

 Bitorquata 162. 

 Bittiura 58. 

 Bivonia 78. 

 Blainvillia 200. 

 Bland ia 190. 

 Blanfordia 179. 

 Blauneria 173. 

 Böttgeria 162. 

 Bolania 181. 

 Bolma 87. 

 Boltenia 109. 

 Bombyxinns 69. 

 Bonellia 45. 

 Bontia 198 

 Bornia 223. 

 Bonis 140. 

 Bostryx 143. 

 Botula 235. 

 Bouohardia 247. 

 Bourciera 189. 

 Boiircierea 189. 

 Boysia 158. 

 Brachiopoda 247. 

 Bracliydontes 234. 

 Brachypodella 148. 

 Brachypodisca 148. 



Brachypus 148. 

 Brachyspira 169. 

 Brachytoraa 8. 

 ßradybaena 121. 

 Brechites 194. 

 Brephulus 150. 

 Brochina 77. 

 Brochus 77. 

 Broderipia 95. 

 Brontes 3. 

 Brownia 3. 

 Bryopa 194. 

 Bucardiidae 220. 

 Bucardiuin. Gray. 218. 



Mhlfld. 220. 

 Buccardiiim 218. 

 Buccinanops 15. 

 Buccinella .55. 

 Buccinidae 14. 

 Buccinopsis 7. 

 Buccinulus 105. 

 Buccinum 14. 

 Buccodes 194. 

 Buckleyia 182. 

 Bufo 13. 

 Bulbus. Humph 21. 



Brown 36. 

 Bnlgarica 162. 

 Bulimella 153. 

 Buliraidae 140. 

 Bulimina 150. 

 Buliraiuidae 1.50. 

 Buliraiuus 150. 

 Bulimnea 174. 

 Buliraulidae 142. 

 Bulimulus. Leach. 143. 

 „ Riss. 150. 



Wood. 15G. 

 Bulimus 140. 

 Buliuus 176. 

 Bulla. Klein 106. 



., Sw. 107. 

 Bullaea. Lm. 107. ■ 



lloiss. 107. 

 Bullaeidae 107. 

 Bullea 106. 

 Bullearius 106. 

 BuUia 15. 

 Bulliana 15. 

 Bullidae 106. 

 Bullina. Blvil. 106. 



Fer. 105. 

 Bullinula 105. 

 Bullus 106. 

 Bursa 13. 

 Busycon 6. 

 Butor 198. 



