[Pisum. 



VII 



Stalagmium.] 



TisTira Mhlfld. 101). 

 Placenta Retz. 244. 

 Placuna Soland. 244. 

 Placunanomia Brod. 243. 

 Plagiodou Lca. 174. 

 Plagiola Rfq. 143. 

 Plagiostoma Sow. 245. 

 Platins Lea. 187. 

 Platyodon Conr. 17. 

 Pleiodoii Conr. 188. 

 Pleurobema Rfq. 143. 

 Pleiirodon Wood. 227. 

 Pleuronectia Sw. 230. 

 Plicatula Lm. 241. 

 Pododesmiis Phl. 243. 

 Podopsis Lm. 238. 

 Polia Orb. 12. 

 Polymesoda Rfq. 97. 

 Polyodouta Mhlfld. 221. 

 Poromya Forb. 26. 

 Poronia Reiz. 130. 

 Portlandia Mörch. 225. 

 Potamida Sw. 143. 

 Potamomya llinds. 20. 

 Potamophila Sow. 60. 

 Prasiua Dsh. 202. 

 Praxis IL A. Ad. 201. 

 Prisodou Schmch. 189. 

 Procos Gistl. 59. 

 Proptera Rfq. 143. 

 Psammobella Gray. 39. 

 Psarnmobia Lm. 39. 

 Psammocola Blvll. 39. 

 Psammosoleu Brown. 39. 

 Psammosolen Riss. 14. 

 Psammotaea Lm. 41. 

 Psammotella Blvll. 43. 

 Psammotella Dsli. 41. 

 Psephis Crptr. 134. 

 Pseiidamussium Klein. 228. 

 Pseudocyrena Brgt. 97. 

 Pseudodou Gld. 172. 

 Pseudodon Gld. 175. 

 Psilopus Poli. 121. 

 Pteria Scop. 202. 

 Ptychina Phl. 128. 

 Pulastra Sow. 77. 

 Pythina Hinds. 132. 



Quadrula Rfq. 143. 

 Quoyia Dsh. 7. 



R. 



Radula Klein. 237, 

 Radulidae 237. 

 Raöta Gray. 38. 

 Raleta Gray. 18. 

 Rangia Desmoul. 35. 

 Reniella Sw. 244. 

 Hesania Gray. 37. 

 Rhipidodonta Mörch. 113. 

 Rhomboides Blvll. 15. 

 Rhombus Blvll. 15. 

 Rhynchonella Fschr. 255. 

 Rhynchonellidae 255. 



Roccellaria Fl. de B. 7. 

 Kochcfortia Velain. 198. 

 Kotundaria Rfq. 143. 

 Roxellaria Mke. 7. 

 Ruellania Brgt. 113. 

 Rupellaria Agas. 7. 

 Riipellaria Fl. de B. 92. 

 Rupicola Fl. de B. 24. ' 



Sanguinolaria Lm. 38. 

 Sanguinolaria Lm. 41. 

 Sarepta A. Ad. 223. 

 Saxicava Fl. de B. 15. 

 Saxieavidae 15. 

 Saxidomus Cour. ;)4. 

 Scacchia Phl. 129. 

 Scalenaria Rfq. 143. 

 Scapha Ilumph. 187. 

 Scapharca Gray. 2 IG. 

 Scaphula Bens. 217. 

 Schizodesma Gray. 35. 

 Schizothoerus Conr. 36. 

 Schizotreta Kutorg. 255. 

 Scintilla Dsh. 134. 

 Scissodesma Gray. 35. 

 Scrobicularia Schmch. 61. 

 Scrobicularinae 61. 

 Semele Schmch. 62. 

 Senilia Gray. 216. 

 Septaria Lm. 7. 

 Septifer Reiz. 201. 

 Septiger Mörch. 201. 

 Serripes Bk. 114. 

 Serrula Ch. 56. 

 Silenia Smth. 23. 

 Silieula Jeffr. 218. 

 Siliqua Mhlfld. 13. 

 Siliquaria Schmch. 14. 

 Solecardia Conr. 131. 

 Solecurtoides Desm. 12. 

 Solecurtus Blvll. 14. 

 Soleilletia Brgt. 113. 

 Solemya Lm. 136. 

 Solemyadae 136. 

 Solemyidae 136. 

 Solen L. 10. 

 Solena Brown. 10. 

 Solenarius Dum. 10. 

 Solenella Sow. 227. 

 Solenidae 10. 

 Soleninae 10. 

 Solenocurtus Sow. 14. 

 Solenomya Mke. 136. 

 Solenyraya Sw. 136. 

 Soletellina Blvll. 41. 

 Spatha Lea. 188. 

 Sphaerella Conr. 129. 

 Sphaeriastrum Brgt. 105. 

 Sphaerium Scop. 105. 

 Sphena Orb. 26. 

 Sphenia Turt. 20. 

 Spisula Gray. 34. 

 Spondylidae 238. 

 Spondylus L. 238. 

 Stalagmium Conr. 194. 



