INDEX. 



357 



Ampnlloidea, d'Orb, II 

 Amussium, Klein. . Ill 

 Amussium, Muhlf. , III 

 Amycla, H. & A. Ad. II 

 Amycula, Gray. . II 

 Amygdala, Romer. Ill 

 Amj^gdaliim, Muhlf. Ill 

 Amyxa, Troschel. . II 

 Anabatbroii, Frauenf. II 

 Anachis,H. &A.Ad. II 

 Anaclodonta, . . Ill 

 Anactodonta, . . Ill 

 Anadara, Gray. . . Ill 

 Anadema, H. & A. Ad. II 

 Anadenus, Heyn. . Ill 

 Anadromus, Sandb. Ill 

 Anapa, Gray. . . Ill 

 Anaptychus, Oppel II 

 Anastomopsis, Sand. Ill 

 Anaitis, Romer. . Ill 

 Anastropbia, Hall. Ill 

 Anatimj^a, Conr. 

 Anatina, Lamarck. 



Anatinella, Sowerb3\ 

 Anatinidse. . . . 

 Anatomus, Montfort. 

 Anaulax, Roissy. . 



Anaulus, Pfeiffer. . 

 Anazyga, Davidson. 

 Anazola, Gray. . . 

 Ancbistoma, Kobelt 

 Ancbomasa, Leacb. 

 Ancbura, Conr. . . 

 Ancilla, Lamarck. . 

 Ancillaria, Lamarck 

 Ancillarina. Bell. . 

 Ancillina, Bell. . . 

 Ancillopsis, Conr. 

 Ancistrocbeirus, Gray. II 

 Ancistrocrania, Dall. Ill 

 Ancistromesus, Dall. II 

 Anclodonta. . . . Ill 

 Ancistroceras, Boll. Ill 

 " III 



III 



III 



III 



III 



III 



II 



II 



II 



II 



III 



II 



III 



III 



II 



II 



II 



II 



II 



II 



PAGE 



276 

 290 

 288 

 179 

 346 

 182 

 262 

 305 

 263 

 178 

 346 

 846 

 254 

 306 

 85 

 56 

 162 

 6^ 

 56 

 177 

 318 

 150 

 145 

 149 

 160 

 142 

 321 

 155 

 176 

 281 

 319 

 175 

 33 

 125 

 194 

 176 

 176 

 177 

 177 

 176 

 32 

 335 

 335 

 345 

 347 

 348 



Ancistrosyrinx,Dall, II 

 Ancistroteutbis, Gray. II 

 Anctus, Albers. . . Ill 

 Ancula, Loven. . . II 

 Anculosa, Say, . . II 

 Anculotus, Say. . II 

 Ancylastrum, M.-Tn. Ill 



Ancylinse Ill 



Ancyloceras, d'Orb. II 

 Ancylotus, Herm. . II 

 Ancylus, Geoffroy. Ill 

 Androgynoceras, Hyt. II 

 Aneitea, Gray. . . Ill 

 Aneiteum, McDon. Ill 

 Anellum, Carp. . . II 

 Angaria, Bolten. . II 

 Angarina, Bayle. . II 

 Angasella, Adams. Ill 

 Angasia, Carp. . . II 

 Angasiella, Crosse. II 

 Angitrema, Hald. . II 

 Anguispira, Morse. Ill 

 Angulites, Montfort. II 

 Angulus, Mublfeldt. Ill 

 Angulns, Sebum. . Ill 

 Angystoma, Sebum. Ill 

 Anisocardia, M.-C. Ill 

 Anisoceras, Pictet. II 

 Anisocycla, Monts. II 

 Anisodonta, Desb. Ill 

 Anisomyon, Meek. Ill 

 Anisorhyncbus, Con. Ill 

 Anisospira, S. & P. Ill 

 Anisothyris, Conr. Ill 

 Anisus, Studer. . . Ill 

 Anna, Risso. . . II 

 Anodonta, Cuvier. Ill 

 AnodontopsiSjM'Coy III 

 Anoglypta. Martens. Ill 

 Anolacia, Gray. . II 

 Anoma, Albers. . Ill 

 Anomala, Desb. . Ill 

 Anomalocardia, Scb. Ill 

 Anomalocardia, Kl. Ill 

 Anomalodonta, Mill. Ill 

 Anomia, Linn. . . Ill 



PAGE 



182 



31 



51 



380 



257 



257 



107 



107 



85 



257 



107 



76 



89 



89 



228 



308 



309 



40 



342 



370 



256 



29 



57 



107 



169 



55 



189 



85 



236 



191 



109 



138 



68 



138 



106 



184 



242 



234 



44 



177 



66 



184 



176 



254 



275 



292 



