92 



INDEX OF SPECIES. 



Physa 



Hildrethiana, i6o. 



humerosa, 79, 90, 160, O 283, 



O316. 

 hypnorum, 116, 222. 

 iuflata, 160. 

 Lordi, 90, 93, 160. 

 Maugerse, 61, 162, 364. 

 osculans 160, O 265. 

 Peruviana, O 237, 251, P 179, 



P 180, P 540. 

 Phillipii, 160. 



planorbula, 161. 



plicata, 160. 



purpurostoma, 44. 



Sowerbyana, 44. 



striata, 160. 



subarata, 160. 



triticea, 120, 161. 



virgata, 160, O 283,0 316. 



virginea, 160, O 209, O 213, 

 O316. 



Pila 



nniltijngis, 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, O 216, O 220, 

 O233. 

 Pinna 



lanceolata, 107, 208, 249, 



311, P 147- 

 maiira, 24, 38, 107, 199, O 185, 



249, 277,0311, P 146. 

 nigra, 43- 



rudis 241,0 282,0 296. 

 rugosa, 27, 107, 185, 249, 



O 311. P 147- 

 tuberculosa, 24, 38, 199, 185, 

 0277. 



Pirena 



Californica, 200, 209,0 230, 

 U 206, V 226. 

 Pisania 



sequilirata, O 263, 344. 

 artiuulata, O 226. 

 cinis, O 344, O 361. 

 D'Orbiguyi, 180, 

 elata, 105, 221. 

 elegans, O 288. 

 fortis, 25, 322, 324. 

 gemmata, 25, 29, 196, O 204, 

 O 236, 263, 344, 364, 



PSiS- 

 haemastoma, 231. 



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



204, o 263, p 514, P 515, 



P516. 

 lugubris, 112, 344. 

 mutabilis, P 514. 

 nigrocostata, 344. 

 pagodus, 25, 179, O 344, P 552. 



(? rar.) sequilirata, P SiS^ 



Panamensis, O 344. 



pastinaca, O 344. 



pusio, O 226. 



ringens, 25, 179, 263, 283, 



0296,0344,0 363, P 5 '8- 

 sanguinolenta, 25, 28, 112, 155, 

 179, O 177, O 204, 263, 



o 344, P 517, P 518. 



Stimpsoniana, 344. 

 tincta, 363. 

 Pisidium 



abditum, 165. 

 amplum, 165. 

 Kurtzii, 165. 

 notatum, 165. 

 obliquuni, 222. 

 obscurum, 165. 

 oecidentale, Ii8, 165. 

 plenum, 165. 

 regulare, 165. 

 resartum, 165. 

 retusum, 165. 



