408 



INDEX. 



Rissoidse. . . ,. . 

 Rissoina, d'Orb. 

 Rissopsis, Garrett. 

 Rissostomia, Sars. 

 Ritena, Gray. . . 

 Rivicola, Fitzinger. 

 Rivuliiia, Clessin. . 

 Rizzolia, Trinchese. 

 Robinsonia, Nevill. 



II 

 II 

 II 

 II 

 II 

 III 

 III 

 II 

 II 

 II 

 III 

 III 

 II 

 II 

 II 

 II 

 II 

 II 

 II 

 III 

 II 

 II 

 III 

 III 



Robusta, Bottger. . 

 Rocellaria, Fleuriau, 

 Rocliebruiiia, Bourg 

 Rocliia, Gra}^ . . 

 Rossia, Gra^'. . . 

 Rostanga, Bergh. . 

 Rostellaria, Lam. . 

 Rostellites, Conrad. 

 Rostellum, Montf. . 

 Rostrifera ... 

 Rotella, Lamarck. . 

 Rotellidi3e. . . . 

 Rotula, Albers. 

 Rotularia, Moreh. . 

 Rotundaria, Rafinesq.III 

 Roiialtia, Bellardi. . II 

 Roudairia, Mun.-Chal.lII 

 Rowellia, Cooper. . Ill 

 Roxania, Leach. . II 

 Roxellaria, Agass. . Ill 

 Rudistes. . . . . Ill 

 Rudolpha, Solium. . II 

 Rufina, Clessin. . Ill 

 Rnma, H. & A.Ad. II 

 Rumina, Risso. . . Ill 

 Runcina, Forbes. . II 

 Rupellaria, Fleuriau. Ill 

 Rupicola, Fleuriau. Ill 



Sabansea, Leach. . II 



Sabia, Gi'ay. . .... II 



Sserichnites, Billings. Ill 



Sagda, Beck. . . Ill 



Sagdinella, Morch. Ill 



Sageceras, Mojs. . II 



Sagenella, Conrad, II 



259 

 261 

 236 

 263 

 294 

 102 

 187 

 386 

 206 

 275 



75 

 119 

 286 

 310 



28 



OIto 



O i o 



191 

 166 

 191 

 346 

 300 

 800 



26 



27 

 239 

 183 

 353 

 110 

 360 

 119 

 202 

 113 



13 

 205 



61 

 367 

 174 

 145 



264 



215 



348 



28 



24 



72 



154 



Sagenites, Mojs. . II 

 Sagitta,Quoy. . . II 

 Saintia, Rainc. . . Ill 



Salpingostoma, Roem. 

 Salterella, Billings. 

 Sancara, Bergh. 

 Sandalium, Schum. 

 Sandbergeria, Bosq. 

 Sandella, Gra3^ . . 

 Sanguinolari:!, Lam. 



II 

 II 

 II 

 II 

 II 

 II 

 III 



Sanguinolaria, Roiss. Ill 

 Sanguinolites, M'Coy.III 

 Sannionites, Fischer. II 

 Sao, H. &A. Ad. . II 

 Saraphia, Risso. . Ill 

 Sarepta, A. Ad. . Ill 

 Sarmaticus, Gray. . II 

 Sarnia, H. & A. Ad. Ill 

 Satsuma, Adams. . Ill 

 Saturnia, Seguenza. Ill 

 Saulea, Gray. . . II 

 Saxicava, Bellevue. Ill 

 Saxicavidge. . . . Ill 

 Saxidomus, Conrad. Ill 

 Scabricola, Swainson. J I 

 Scabrina, Blanf. . . II 

 Scacchia, Philippi. Ill 

 Scsea, Philippi. . . II 

 Scseurgus, Troscliel. II 

 Scsevogyra, Whitfield. Ill 

 Scaevola, Gemm. . II 

 Scala, Klein. . . II 

 Scalaria, Lamarck. II 

 Scalaridffi. ... II 

 Scalarina, Conr. . II 

 Scalaspira, Conr. . II 

 Scaldia, Rj^ckholt. . Ill 

 Scalenaria, Rafinesq. Ill 

 Scalenostoma, Desh. II 

 Scalinella, Pease. . II 

 Scaliola, A. Ad. . II 

 Scalites, Conrad. . II 

 Scambula, Conr. . Ill 

 Scapha, Gray. . . II 

 Scaphander, Montfort. II 



70 



348 

 296 

 323 



98 

 398 

 .212 

 251" 

 176 

 166 

 167 

 166 

 153 



52 

 360 



94 

 260 

 305 



93 



40 

 248 

 276 

 135 

 134 

 175 

 170 

 286 

 217 



94 



20 

 350 

 309 

 220 

 220 

 220 

 220 

 107 

 181 

 239 

 232 

 280 

 222 

 223 

 224 

 162 

 354 



