291 



Pisidium, 274. 

 Pisum, 220, 273. 

 Pitar, 68. 

 placens, 252. 

 placida, 124, 252. 

 placunella, 89. 

 plana, 10. 

 planata, 86. 

 planatel!a, 59. 

 planulata, 48. 

 plebeia, 80. 

 plicata, 120. 

 plumbeus, 264. 

 polita, 19, 47, 147, 



172. 

 Polymeroda, 241, 2oi. 

 ponderosa, 7, 47, 268. 

 ponderosum, 268. 

 portesiana, 136. 

 prfeparca, 115. 

 Prideauxiana, 145. 

 Producta, 236, 

 prora, 65, Sl. 

 prostrata, 21. 

 Psammotella, 205. 

 pubescens, 15. 

 pudica, 70. 

 puella, 125. 

 puerpera, 104. 

 pulchelia, 188, 228, 



278, 283. 

 pulchellum, 278, 279, 



283. 

 pulchra, 62. 

 puhcaria, 111. 

 pulicaris, 89. 

 Pullastra, 160. 

 pullastra, 180. 

 puUaia, 232. 

 punctifera, 116. 

 punicea, 179. 

 pura, 68. 

 purpurata, 188. 

 pusilla, 221,277, 281. 

 pusillum, 277, 278. 

 pygmaja, 129, 284. 



quadrangularis, 152. 

 quadriradiata, 171. 



R. 



radiata, 12, 49, 51, 

 131, 152, 165, 204, 

 216, 222,254. 



ranella, 96. 



raritlamma, 167, 210. 



Rasterucii, 101. 



recens, 148. 



Kechisiana, 279. 



recurvata, 226. 



reflexa, 101. 



regularis, 146. 



resticulata, 107. 



reticulata, 16, 105, 

 108. 



retifera, 169. 



rhomboidea. 266. 



rhcmboideum. 266. 



rhombifera, 161. 



rigida, 103. 



rimosa, 171- 



rimularis, 149. 



rivaUs,228, 264, 275. 



rivicola, 261, 262. 



rivularis, 84. 



robusta, 210. 



Roccellaria, 209. 



Rodatzi, 165. 



rosacea, 270. 



rosaceum, 270. 



rosahna, 102. 



rosea, 77. 



roseum, 278. 



rostralis, 205. 



rostrata, 71, 117. 



rotundata, 167, 235. 



rubicunda, 18. 



rubiginosa, 66, 82. 



rubra, 77. 



ruderata, 136. 



rudis, 72. 



rufa, 23, 158. 



rufcscens, 67. 



rngifera, 85. 



rugosa, 102,116, 144, 

 203, 213. 



Riipellaria, 190. 



rupereUa, 210. 



rutila, 58. 



Ryckholtii, 26 J. 



sabuhcola, 262. 

 saccata, 32. 

 salmacida, 259. 

 Sarniensis, 173. 

 Sarratogea, 266. 

 Savignyi, 90. 

 Saxidomus, 186. 

 scabra, 24, 130. 

 sca1)riuscula, 25. 

 scalarina, 148. 

 scalaris, 22. 

 Scahliana, 264. 

 scripta, 44, 83. 

 sculpta, 11, 100. 

 securis, 268. 

 senien, 284. 

 semi-lamellata, 209. 

 seminuda, 42. 

 semirugata, 163. 

 semisulcata, 62, 230. 

 Senegalensis, 180,287. 

 sericea, 19. 

 serrata, 192, 212. 

 Sieboldtii, 21. 

 simile, 265. 

 similis, 167, 198, 225, 



245, 206. 

 simillima, 133. 

 simplex, 9, 79, 271. 

 Sinensis, 30. 

 sinuata, 12,13,17,144. 

 sinuatum, 276. 

 sinuosa, 33, 161,249. 

 Solandri, 44. 

 Solangensis, 51. 

 solida, 191, 254,265. 

 solidula, 18, 269. 

 solidulum, 269. 

 solidum, 265. 

 sordida, 255. 

 Sowerbyi, 95, 109. 

 spatbiilata, 59. 

 spha-ricula, 80. 

 Sphcprium, 219, 261. 

 spissa, 150. 

 spurca, 150. 

 squalida, 58, 188, 233. 

 squamosa, 117. 

 stagnicola, 202, 264. 



