92 



INDEX OF SPECIES. 



Physa 



Hildretliiana, i6o. 



humerosia, 79, 90, 160, 283, 



O316. 

 bypnorum, 116, 222. 

 iuflata, 160. 

 Lordi, 90, 93, 160. 

 Maugerse, 61, 162, 364. 

 osculaus 160, 265. 

 Peruviana, 237, 251, P 179, 



P i8o, P 540. 

 Phillipii, 160. 

 planorbula, 161. 

 plicata, 160. 

 purpurostoma, 44. 

 Sowerbyana, 44. 

 striata, 160. 

 subarata, 160. 

 triticea, 120, 161. 

 virgata, 160, 283, 316. 

 virgiuea, 160, 209, 213, 



O316. 

 Pila 



multijugis, P 255. 

 ornata, P 255. 

 scabricosta, P 255. 

 Pileopsis 



autiquata, P 297. 

 mitrula, 255, P 297, R 3. 

 pilosa, 275. 

 subrufa, R 4. 

 Pilidium 



commodum, 216, 220, 



O233. 

 Pinna 



lanceolata, 107, 208, 249, 



311, P 147. 

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



249, 277, O311, P 146. 

 nigra, 43. 



rudis 241, 2S2, 296. 

 rugosa, 27, 107, 185, 249, 



O311, P 147. 

 tuberculosa, 24, ^S, 199, 185, 



O277. 



Pirena 



Califoruica, 200, 209,0 230, 



U 206, V 226. 

 Pisania 



sequilirata, 263, 344. 



articulata, 226. 



ciuis, 344, 361. 



D'Orbiguyi, 180. 



elata, 105, 221. 



elegans, 288. 



fortis, 25, 322, 324. 



gemmata, 25, 29, 196, 204, 



236, 263, 344, 364, 



P515. 

 baemastoma, 231. 

 insignis, 25, 28, 179, 324, 325, 



O 204, 263, P 514, P 515, 

 . P516. 



lugubris, 112, 344. 

 mutabilis, P 514. 

 nigrocostata, 344. 

 pagodus, 25, 179, 344, P 552. 



(? t'an)aequilirata, P 515. 



Panamensis, O 344. 



pastinaca, 344. 



pusio,0 226. 



ringens, 25, 179, 263, 283, 



0296,0344,0 363, P 518. 

 sanguinolenta, 25, 28, 112, 155, 



179, 177, 204, 263, 



344, P 517, P 518. 

 Stimpsoniana, 344. 

 tincta, 363. 

 Pisidium 



abditum, 165. 

 amplum, 165. 

 Kurtzii, 165. 

 notatum, 165. 

 obliquum, 222. 

 obscurum, 165. 

 occidentale, 118, 165. 

 plenum, 165. 

 regulare, 165. 

 resartum, 165. 

 retusum, 165. 



i 



