INDEX. 



355 



Actseonidea, Gabb. 

 Acti^onina, d'Orb. 

 Acteonella, d'Orb. 



II 

 II 

 II 

 II 



Aetaeonema, Conr. II 

 Acteonia, Quatrefages. II 

 Actinaria, Pfr. . . Ill 

 Actinella, Lowe. . Ill 

 Actinobolus, Klein. Ill 

 Actinocamax, Miller. II 

 Actinoceramns,Meek. Ill 

 ActinoceraS, Bronn. II 

 Actinoceras, Stokes. II 

 Actiiioconelius, M'C. Ill 

 Actinocyclus,Ehrenb. II 

 III 

 III 

 III 

 III 

 III 

 II 

 II 

 III 

 III 

 II 

 II 

 II 

 II 

 II 

 III 

 II 

 II 

 II 

 II 



Actinodesma, Sandb. 

 Actinodonta, Phil. 

 Actinom^'a, Ma3'er. 

 Actinoptera, Hall. 

 Actinostrea, Bayle. 

 Actita, Fischer. . , 

 Acus, Humphrey. . 

 Acnsta, Albers. . 

 Adacna, Eichwald. 

 Adalaria, Bergh. 

 Adamsia, Danker. 



Adamsiella, Pfr. 

 Addisonia, Dall. 

 Adelodonta, Ancey. 

 Adeorbis, Wood. . 

 Adinos, H. & A. Ad 

 Admete, Moller. 

 Admetopsis, Meek. 

 Adrana, H. & A. Ad. Ill 

 Adranaria, Mun.-Ch. Ill 

 Adspergillum,Menke. Ill 

 Adula, H. Adams. . Ill 

 Adula, H. & A. Ad. Ill 

 JEga, Hartmann. . Ill 

 ^gilops, Hall. . . Ill 

 iEgirus, Loven . . II 

 JEgista, Albers. . . Ill 

 JEgiia, Swainson. . Ill 

 ^goceras, Waagen. II 

 Jj]gopina, Kobelt. . Ill 



PAGE 



356 

 355 

 356 

 359 

 236 

 391 



25 



38 

 331 



46 

 279 



51 



52 

 322 

 373 

 280 

 258 

 152 

 273 

 298 

 213 

 182 



40 

 194 

 372 

 106 

 149 

 283 

 329 



34 

 219 

 155 

 181 

 182 

 249 

 258 

 117 

 106 

 263 



56 

 257 

 378 



33 

 239 



76 



23 



JEgopis, Fitzinger. Ill 



Enigma, Koch. . . Ill 



^nona, Conrad. . Ill 



^Eolidffi. . , . . II 



Ji^olidella, Bergh. . II 



J^]olidia, Cuvier. . II 



^olidiana, Quatr. . II 



JEolinse, .... II 



Jilolis, Cuvier. . . II 



^ora, Conrad. . . Ill 



J^rope, Albers. . . Ill 



JEsopus, Gould. . II 

 ^thedoris, Abraham. II 



Ji^theria, Lamarck. Ill 



JEtheriidse, . . . Ill 



Afer, Conrad. . . II 



Aganides, Montf. . II 



" " II 



Agadina, Gould. . II 



Agaronia, Gray. . II 



Agasoma, Gabb. . II 

 Agassiziceras, H^^att. II 



Agathirses, Montf. . II 

 Agathylla,H. & A. Ad. II I 



Agina, Turton. 

 Agiaia, Albers. . . 

 Aglaia, Renier. . . 

 Agnatha, . . . . 

 Agnewia, T.-Woods 

 Agraulina, Bourg. . 

 Agria, Matheron. . 

 Agriolimax, . . . 

 Agulhasia, King. . 

 Aidone, H. & A. Ad, 

 Ailobranchiata. . . 

 Akera, Mulier. . . 

 Alaba, H. & A. Ad. 

 Alsea, Jeffreys. . . 

 Alaria, Morris. . 

 Alasmodonta, Say. 

 Albaniea, Bottger. 

 Albersia, H. Ad. 

 Albertisia, Issel. 

 Albinaria, Vest. 

 Alcadia, Gray. . 

 Alcira, H. Ad. . 



Ill 



III 



II 



III 



II 



III 



III 



III 



III 



II 



II 



II 



II 



III 



II 



III 



III 



III 



II 



III 



II 



II 



PAGE 



22 

 293 

 169 

 384 

 386 

 386 

 386 

 385 

 385 

 181 



18 

 179 

 379 

 244 

 244 

 128 



59 



65 



95 

 175 

 143 



75 

 228 



75 

 138 



40 

 354 



10 

 106 



62 

 206 



79 

 308 

 169 

 381 

 362 

 247 



71 

 195 

 240 



75 



45 

 267 



76 

 292 

 180 



