INDEX OF SPECIES. 



B^ 



Pectunculus 



corbis, 4. 



giganteus, 27, 208, 233, 

 O 2S5, O 2S9, 310, 352, 



inaequalis, 10, 24, 200, 178, 

 O 182, O 249, 2S5, 2S9, 

 O 290, 310, 366, P 144. 



maculatus, 24, 200, 208, O 

 277, 310. 



multicostatus, 249, 310, 

 O 366, P 144. 



nitens, 165, 367, 



parcipictus, 24, 229, 310. 



patulus, 165, O 367. 



pectenoides, 24, 208, 265, 

 O310. 



pectinlformis, O 249, P 144. 



septentrionalis, 219, 223. 



tessellatus, O 229. 

 Pedicularia 



Californica, 119, 149. 



decussata, 119. 



elegantissima, 119. 



Sicula, 119. 

 Pedipes 



angulatus, 275, O 316. 



liratus, 98, 116, 133, 159. 

 Penitella 



Conradi, 14, 121, 203. 



ovoidea, 76. 



penita, 76, 121. 



spelsea, 76. 



tubigera, 15, 203. 



Wilsonii, 121, 194, O 265, V 

 209. 



xviophaga, 15, 203. 

 Perdicea 



nodosa, 48. 

 Periploma 



alta, O 2S0, 301. 



argentaria, So, 124, 194, 301, 

 351, Q 229, V 211, 



excurva, Q 229. 



excarvata, O 287, 301. 



Leana, 231, 297,0 301, Q229. 



obtasa, 62. 



Periploma 



papyracea, O 287, O 301, Q 



229. 

 planiuscula, O 194, 231, O 

 301,0352, V211. 

 Pema 



anomioides, 52, 



Californica, 52, 193, 198, 



O 234, V 219. 

 Cheinnitziana, 233, 277, 



P 150. 

 costellata, 52, 198, P 152, 



V 219. 

 flexuosa, 20S, 233, O 249, 



P 150. 

 incisa, V 219. 

 masillata, 82. 

 moutana, 82. 

 quadrata, 60. 

 radiata, P 150. 

 Per onaeo derma 



ochracea, 104, 210. 

 punicea, i'02. 

 PeronaeuB 



arternisia, 158. 

 Persicula 



clandestina, P 462. 

 fruuientum, iii. 

 imbricata, 24, iii, 112. 

 interrnpta, iii. 

 phrygia, in, 112. 

 minor, P 461. 

 sagittata, in. 

 Persona 



constricta, 24, O 231. 

 ridens, 24, O 338. 

 Petaloconchus 



cereiis, W 316, W317. 

 cochlidium, W 314, W 315, W 



317- 

 flavescens, W 314, W 317. 

 macrophragma, 24, 43, 108, 114, 



140, 239, 200, 255, O 323, 



O 351, 353, 364, P 306, 



P 309, V 226, W313, W314, 



W317. 



