418 



INDEX. 



Turcica, Bottger. . Ill 

 Turcica, H. & A. Ad. II 



Turiius, Gabb. 

 Turrieula, Beck. 

 Turricula, Klein. . 

 Turrilites, Lamarck. 

 Turris, Bolten. . . 

 Turris, Humphrey. 

 Turrispira, Conrad. 

 Turritella, Lamarclr. 



Ill 



III 

 II 

 II 

 II 

 II 

 II 

 II 



III 

 II 

 II 



II[ 

 II 



III 

 II 

 II 



Turritellidse. , . . 

 Turritellopsis, Sars, 

 Turtonia, Hanley. . 

 Tutufa, Jouss. . . 

 Tychocardia, Romer 

 Tychonia, Koninck. 

 T3'lacus, Conr. . . 



Tyleria, H. & A. Ad. Ill 

 Tylodina, Rafinesque. II 



Tylopoma, Brusina. II 



Tylostoma, Sharpe. II 

 Tympanotomns, Klein. II 



Typhis, Montfort. . II 

 Typhlomangelia, Sars. II 



Ulostoma, Albers. . Ill 



Umbonella, A. Ad. II 



Umbonium, Link. . II 



Umbrella, Lamarck. II 



Umbrellidse. ... II 



Uncinaria, Vest. . Ill 



Uncites, Defrance. Ill 



Ungula, Pander. . Ill 



Ungulina, Daudin. Ill 



Ungulinidae. . . Ill 



TJngulites, Pander. Ill 



Unicardium, d'Orb. Ill 



Unicornus. Montf. . II 



TJnio, Retzins. . . Ill 



Uniocardium, Cap. Ill 



Uniomeris, Conr. . Ill 



Uniona, Pohlig. . Ill 



Unionidse. . . . Ill 



Unionites, Miinst. . Ill 



Unionites, Wissm. . Ill 



PAGE 



15 

 312 

 126 



38 

 171 



86 

 183 

 224 

 128 

 224 

 351 

 224 

 224 

 221 

 126 

 189 

 207 

 212 

 149 

 368 

 260 

 357 

 250 

 107 

 185 



35 

 316 

 300 

 367 

 367 



76 

 326 

 338 

 215 

 215 

 338 

 213 

 113 

 238 

 239 

 238 

 239 

 237 

 236 

 234 



Uniopsis, Swains. . 





PAGE 



240 



Uniplicaria, Pfeiffer. 





17 



Uperotis, Guettard. 





123 



Urcinella, Raf. . . 





.87 



Urocoptis, Beck. . 





66 



IJroc3^clus, Gray. . 





81 



Urosalpinx, Stimpson. II 



106 



Fsilla, H. Ad. . . 



II 



113 



Utriculina, Gray. . 



II 



175 



Utriculopsis, Sars. 



II 



352 



Utriculus, Brown. . 



II 



359 



Uvanilla, Gray. 



II 



308 



Uzita, H. & A. Ad. 



II 



158 



Vaginella, Daud. . 



II 



91 



Vaginula, Ferussac. 



III 



89 



Vaginulidpe. . . . 



III 



90 



Vaginulus, Stolicz. 



III 



90 



Valenciennesia, Rous. II I 



99 



Yalletia, Mun.-Chal. 



III 



99 



Vallonia, Risso. 



III 



39 



Yalvata, Mliller. 





273 



Valvatella, Gray. . 





316 



Valvatella, Morch. 





94 



Valvatidfe. . . . 





273 



Valvatinella, Betta. 





273 



Yanesia, A. Ad. 





235 



Yanganella, Gray. . 



III 



159 



Yanikoro, Quoy. . 





210 



Yanikoropsis, Meek. 





210 



Yanuxemia, Billings 



III 



257 



Yaricella, Pfr. . . 



III 



14 



Yaricifer, Piette. . 





195 



Yarigera, d'Orbigny. 





357 



Yasconia, Fischer. 



III 



221 



Yasseuria, Mun.-Chal. II 



48 



Yasum, Bolten. 



II 



161 



Yediantius, Risso. 



III 



62 



Yelainella, Yasseur. 



II 



318 



Yelatella, Meek. 



II 



298 



u u 



III 



351 



Yelates, Montfort. . 



II 



298 



u u 



III 



351 



Yeleda, Conrad. 



III 



188 



Yelifera,Binney. . 



III 



21 



Yelletia, Gray. . . 



III 



107 



