INDEX OP SPECIES. 



95 



Plicatula 



peiiieillata, 38, 107, 199, 250, 

 O312, P 155. 

 Polinices 



bifasuiata, 27, no, 152, 153. 



vur. fiisca, 9, iio. 



Gallapagosa, 282, O 284. 



intetnerata, 337. 



lactea, O 364. 



Otis, 24, 27, no, 282. 



ovum, O 2S4. 



Panamensis, 337. 



perspicua, 102, O 337. 



Recluziana, 27, 153. 



Salangonensis, 27, 193, 337. 



uber, 24, 37, no, 193, 261, 

 O 282, O 337, 364, P 452. 



uniniaculata, 337. 



virgiiiea, O 337. 

 Pollia 



distorta, 26S. 



lireraastoma, 177,0 191, 236, 

 263, O 269, P 517. 



insignis, 29. 



seabra, 20. 

 Polydonta 



deiitata, 321. 

 Polygyra 



acut«ilentata, 157. 



contortuplicata, 294. 



polygyrella, 157. 



veiitrosula, 157. 

 Polyplex 



gracilis, 6. 

 Polytropa 



11 ux, P 484. 

 Fomatiopsis 



Bimieyi, 163. 

 Fomaulaz 



uniiobus, 23, 27, 37, 53, 108, 137, 

 151, 192, O 199, 234,0 240, 

 282, O 283, 320, P 230, 

 V 224. 

 Pompholyx 



effusa, 120, 160. 



Poronia 



Petitiana, 30, P 549. 



rubra, 69, P 108. 

 Potamis \ 

 Potamides ' . 



Califoruianus, 213. ' 



ebeninus, 48. 



fiisoatus, U 206. 



Ilegewischii, O 233, O 295, P 345. 



Moiitagnei, O 238, P 542. 



puUatus, 79, 84, 283, 284. 



sacratus, 209, U 206, V 226. 

 Potamomya 



sequalis, 204, O 280, O 300. 



inflata, 204, O 2S0, O 300. 



trigonalis, 204, 280, O 300. 

 Priene 



cancellata, 20, 170. 



nodosa, 24, 27, 152, 166. 



Oregonenais, 20, 25, 69, 92, 99, 

 147, 169 170, 322. 

 Pristes 



obloiigus, 97, 127. 

 Propilidium 



aiicyloir.'e, 19. 

 Psammobia 



Califoruioa, 119. 



casta, 23, 38, 202. 



decora, 124,0 195, 207, O231, 

 V 212. 



fusca, 221. 



Kindermanni, 301. 



maxima, 49. 



olivacea, 74. 



Pacifica, 12, 38, 78, 126, 195, 

 O301, O351, V 212. 



regularis, 104, 210. 



rubroradiata, 26, 49, 88, 124. ^ 

 Psephis 



Lordi, 88, 97, 127. 



salmonea, 25, 97, 127. 



tantilla, 22, 25, n8, 126, 165. 



tellimyalis, 127, 303. 

 Paeudobuccinum 



biliratum, 342. 



