INDEX OF SPECIES. 



95 



Plicatula 



penicillata, 38, 107, 199, 250, 

 312, P 155. 

 Polinices 



bifasciata, 27, no, 152, 153. 



var. fusca, 9, no. 



Gallapagosa, 282, 284. 



intemerata, 337. 



lactea, 364. 



Otis, 24, 27, I lo, 282. 



ovnm, 284. 



Panamensis, 337. 



perspicua, 102, 337. 



Recluziana, 27, 153. 



Salangonensis, 27, 193, 337- 



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

 282, 337, 364, P 452. 



uniraaculata, 337. 



virginea, 337. 

 Pollia 



distorta, 268. 



hfEmastoma, 177,0 191,0236, 

 263, 269, P 517. 



insignis, 29. 



scabra, 20. 

 Polydonta 



dentata, 321, 

 Polygyra 



acutedentata, 157. 



contortuplicata, 294. 



polygyrella, 157. 



ventrosula, 157. 

 Polyplex 



gracilis, 6. 

 Polytropa 



uux, P 484. 

 Pomatiopsis 



Biuneyi, 163. 

 Pomaulax 



undosus, 23, 27, 37, 53, 108, 137, 

 151, 192, 199, 234, 240, 

 O 282, 283, 320, P 230, 

 V 224. 

 Pompholyx 



effusa, 120, 160. 



Poronia 



Petitiaua, 30, P 549. 



rubra, 69, P 108. 

 Potamis \ 

 Potamides J 



Californianus, 213. 



ebeninns, 48. 



fusoatus, U 206. 



Hegewischii, 233, 295, P 345. 



Montagnei, 238, P 542. 



pullatus, 79, 84, 283, 284. 



sacratus, 209, U 206, V 226. 

 Potamomya 



ffiqiialis, 204, 280, O 300. 



iuflata, 204, 280, 300. 



trigonalis, 204, 280, 300. 

 Priene 



caiicellata, 20, 170. 



nodosa, 24, 27, 152, 166. 



Oregonensis, 20, 25, 69, 92, 99, 

 147, 169 170, 322. 

 Pristes 



oblongus, 97, 127, 

 Propilidium 



aiicyloide, 19. 

 Psammobia 



Californica, 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, nS, 126, 165. 



tellimyalis, 127, 303. 

 Pseudobuccinum 



biliratum, 342. 



