INDEX OF SPECIES. 



Physa 



Hildrethiana, 160. 



humerosa, 79, 90, 160, 283, 



0316. 



hypuorum, 116, 222. 

 iuflata, 1 60. 

 Lordi, 90, 93, 160. 

 Maugerae, 61, 162, 364. 

 osculans 160, 265. 

 Peruviana, 237, 251, P 179, 



P 1 80, P 540. 

 Phillipii, 1 60. 

 plauorbula, 161. 

 plicata, 1 60. 

 purpurostoma, 44. 

 Sowerbyana, 44. 

 striata, 160. 

 subarata, 160. 

 triticea, 120, 161. 

 virgata, 160, 283, 316. 

 virginea, 160, 209, 213, 



3 i6. 

 Pila 



multijugis, P 255. 

 ornata, P 255. 

 scabricosta, P 255. 

 Fileopsis 



antiquata, P 297. 

 mitrula, 255, P 297, R 3. 

 pilosa, 0.275. 

 subrufa, R 4. 

 Pilidium 



commodum, 216, 220, 



0233. 

 Pinna 



lanceolata, 107, 208, 249, 



311, P 147- 

 maura, 24, 38, 107, 199, 185, 



0249,0277,0311,? 146. 

 nigra, 43. 



rudis 241, 282, 296. 

 rugosa, 27, 107, 185, 249, 



311, P 147. 



tuberculosa, 24, 38, 199, 185, 

 0277. 



\ 



Pirena 



Californica, 200, 209, '230, 



U 206, V 226. 

 Pisania 



sequilirata, 263, 344. 



articulata, 226. 



ciuis, O 344, 361. 



D'Orbignyi, 180. 



elata, 105, 221. 



elegans, 288. 



fortis, 25, 322, 324. 



gemmata, 25, 29, 196, 204, 

 236, 263, 344, 364, 



PS'S- 



hsemastoma, 231. 

 iusignis, 25, 28, 179, 324, 325, 



204, 263, P 514, P 515, 



P$i6. 



lugubris, 112, 344. 

 mutabilis, P 514. 

 nigrocostata, 344. 

 pagodus, 25, 179, 344, P 55 2 - 



(? rar.) sequilirata, P 515. 



Panamensis, 344. 



pastinaca, 344. 



pusio, 226. 



ringens, 25, 179, 263, 283, 



0296, 0344, 0363, P 518. 

 sanguinolenta, 25, 28, 112, 155, 



179, 177, 204, 263, 



0344, P 517, P 5i8. 

 Stimpsoniana, 344. 

 tincta, 363. 

 Pisidium 



abditum, 165. 

 amplum, 165. 

 Kurtzii, 165. 

 notatnm, 165. 

 obliquum, 222. 

 obscurum, 165. 

 occidental, 118, 165. 

 plenum, 165. 

 regulare, 165. 

 resartnra, 165. 

 retusum, 165. 



