INDEX. 



395 



PAGE 



N'eritrema, Recluz. II 241 



Neritula, Plancus. . II 159 



Nesfea, Risso. . . II 184 



Nesta, H. Ad. . . II 328 



Netastomella. Carp. Ill 12t 



Netrum, Phil. . . II 182 



Neumayria, Bayle. II tS 



Neverita, Risso. . II 205 



Nevillia, H. Adams. II 265 



Nevillia, Martens. . Ill 18 



Newcombia, Carp. . II 342 



Newcombia, Pfeiffer. Ill 64 



Nicida, Blanf. . . II 283 



Nig:ritella, Albers. . Ill 30 



Mgritella, Brot. . II 253 



Nina, Gray. ... II 242 



Ninella, Gray. . . II 306 



Niotha, H. & A. Ad. II 158 



Niphonia, Adams, . II 317 



Nisea, Marc, de Serres. II 121 



Niso, Risso. ... II 230 



Nitidella, Swainson. II 178 



Nitocris, H. & A. Ad. II 258 



Noetia, Gray. . . Ill 255 



Noicia, Gray. . . II 213 



Nona, H. & A. Ad. II 354 



Norrisia, Bayle. . . II 315 



Northia, Gray. . . II 154 



Notarchus, Cuvier. II 365 



Nothoceras, Barr. . II 55 



Notlioceras, Bichw. • II 52 



Nothus, Albers. .Ill 61 



Notodoris, Bergh. . II 378 



Notomya, M'Coy. . Ill 230 



Notoplax, H. Ad. . II 345 



Notosiphites, Duval. II 46 



Novacnlina, Benson. Ill 134 



Novites, Mojs. . . II 72 



Nubecula, Klein. . II 187 



Nucinella, S.Wood. Ill 260 



Nucleobranchiata. . II 103 



" .II 347 



Nucleopsis, Conrad. II 356 



Nucleospira, Hall. . Ill 323 



Nucula, Lamarck. . Ill 248 



Nuculana, Link. . Ill 248 



Nucularia, Conr. . 

 Nuculella, Chenu. . 



Nuculidfe 



Nuculina, d'Orb. . 

 Nuculites, Conr. 



a u 



Nuculocardia. d'Orb. 

 Nucunella, d'Orb. . 

 Nudibranchiata. 



u 



Nummulina, Kob. . 

 Nuttallina, Carp. . 

 Nyassa, Hall. . . 

 Nystia, Tourn. . . 



PAGE 



III 250 



III 259 



III 248 



III 260 



III 

 III 



III 



248 

 250 



III 264 



III 259 



II 344 



II 368 



39 



II 344 



III 251 



II 266 



Obba, Beck. ... Ill 44 



Obbina, Semper. .Ill 45 



Obolella, Billings. . Ill 339 



Obolellina, Billings. Ill 336 



Obeliscus, Beck. . Ill 60 



Obeliscus, Humph. II 239 



Obelus, Hartmann. Ill 38 



Obolid«?, . . . . Ill 337 



Obolus, Bichwald. . Ill 337 



Obovaria, Rafin. . Ill 239 



Ocana, Ads. ... II 305 



Ochthephila, Beck. Ill 38 



Ocinebra, Leach. . II 106 



Octopoda, .... II 12 



Octopodidjfi, ... II 12 



Octopodoteuthis,Rup. II 32 



Octopus, Lamarck. . II 15 



Ocythoe, Leach. . II 22 



Odoncinetus, Cos, . Ill 144 



Odontartemon, Pfr. Ill 16 



Odontidium, Phil. . II 228 



Odontina,Zborzewsky, II 228 



Odontobasis, Meek. II 150 



Odontoc3^clas, Ad. , III 70 



Odontocyclas, Schl. Ill 70 



Odontognatha, , , III 19 



Odontomaria, Roem, II 320 



Odontopolys, Gabb. II 105 



Odontosagda, Albers. Ill 24 



Odontostoma, d'Orb. II 293 



