INDEX. • 



331 



octanfracta, 211. 



outodentata, 172. 



octoiia, 159, 163, 211. 



Odostomia, 162, 166, 176, 183, 184, 



186, 190. 

 ofFtonensis, 168. 

 Oleacina, 53. 

 Olivieri, 130. 

 Omphiscola, 211. 

 Onchidiadae, 50. 

 Onchidium, 51. 

 opaciis, 203. 



Operculum of Gasteropoda, 10. 

 Ophicardelli, 190. 

 Orcliideous snails, 97. 

 ornata, 123. 

 Orthoconchce, 248. 

 Ostracea, 249. 

 Otina, 198, 222, 223, 224. 

 Otinia, 223. 

 Otis, 223, 224. 

 ovale, 257. 



ovalis, 272, 279, 280, 

 ovata, 197, 203, 280. 

 ovatus. 203. 



Ovatella, 192, 193, 195. 

 ovulum, 224. 

 Oxychilus, 92, 94, 96, 127. 



pallida, 129, 254, 256. 



pallidum, 254, 267. 



Paludina, 23, 24, 26, 27, 28, 29, 30, 



31, 32. 

 Paludiiice, 29. 

 paludosa, 119, 272. 

 jjaludosus, 1 19, 272. 

 jjalustre, 208. 

 palustris, 172, 193, 197, 200, 208, 



209, 268. 

 Parma, 78. 

 Parreysi, 133. 

 parvula, 176, 186, 188. 

 parvus, 236. 



Patella, 6, 43, 217, 219, 221. 

 Patula, 142, 143, 144. 

 patulus, 202. 

 Pectinacea, 249. 

 Pectinibranchiata, 9, 14. 

 Pedifera, 2. 

 Pedipes, 196. 



pellucida, 58, 65, 72, 73, 87. 

 pellucidus, 87. 



peloponnensis, 47. 



Pera, 264, 265, 266, 267, £68. 



pereger, 148, 200, 202, 204, 205, 219. 



peregra, 197, 20i!, 203. 



peregrina, 211. 



peregrum, 202. 



perla, 225. 



Periostracum of shells, 76. 



Peronia, 50, note. 



personata, 1 92, 1 93. 



persoiiatum, 193. 



perspectiva, 142. 



perversa, 64, 176, 182, 184, 186. 



perversus, 176, 185, 186. 



Petavia, 99. 



petholata, 121. 



Petropliila, 50. 



Pfeifferi, 147. 



phalloides, 81. 



Phasianella, 45, 



Philippi, 279. 



Philodromus, 79. 



Pholadacea, 248. 



Phyllivora, 49, 56. 



Physa, 3, 182, 197, 198, 199, 207, 



214, 217, 224, 225, 226, 227, 228, 



229. 

 Physina, 224. 

 Phytia, 193. 

 picea, 115. 

 pictorum, 279, 280. 

 Pine snails, 97. 



pisana, 64, 120, 121, 125, 126, 127, 

 piscinalis, 34, 35, 37, 272, 273. 

 Pisidiada?, 248, 250, 263. 

 pisidiodes, 255. 

 Pisidium, 255, 264, 265, 266, 267, 



268, 269, 270. 

 planatus, 238, 239, 

 Planorbina, 230, 

 Planorbis, 6, 7, 36, 58, 61, GS, 65, 



66, 102, 117, 197, 198, 225, 228, 



229, 230, 231, 232,233, 234, 235, 



236, 237, 240, 241, 242, 243, 244, 



245, 246. 

 planorbis, 36, 37, 238, 242. 

 platana, 240. 

 platyphylla, 140. 

 Platypoda, 16. 

 Pleurobranchi, 217. 

 Pleurobranchiata, 9. 

 plicata, 174, 1.S4 



