INDEX OF SPECIES. 



89 



Pectunculus 



corbis, 4. 



- giganteus, 27, 208, 233, 

 285, 289, 0310, 352. 



inaequalis, 10, 24, 200, 178, 

 182, 249, 285, 289, 

 290, 310, 366, P 144. 



maculatus, 24, 200, 208, 

 277, 310. 



multicostatus, 249, 310, 

 O 366, P 144. 



nitens, 165, 367. 



parcipictus, 24, O 229, 310. 



patulus, 165, 367. 



pectenoides, 24, 208, 265, 

 O 310. 



pectiniformis, 249, P 144. 



septentrionalis, 219, 223. 



tessellatus, 229. 

 Pedicularia 



California, 119, 149. 



decussata, 119. 



elegantissima, 119. 



Sicula, 119. 

 Pedipes 



angulatus, 275, 316. 



liratus, 98, 116, 133, 159. 

 Penitella 



Conradi, 14, 121, 203. 



ovoidea, 76. 



penita, 76, 121. 



spelsea, 76. 



tubigera, 15, 203. 



Wilsonii, 121, 194, 265, V 

 209. 



xylophaga, 15, 203. 

 Perdicea 



nodosa, 48. 

 Periploma 



alta, 280,0 301. 



argentaria, 80, 124, 194, 301, 

 0351, Q22 9 , V2ii. 



excurva, Q, 229. 



excurvata, 287, 301. 



Leana, 231, 297, 301, Q 229. 



obtusa, 62. 



Periploma 



papyracea, 287, 301, Q 



229. 

 planiuscula, 194, 231, 



301, 0'352, V 211. 

 Perna 



anomioides, 52. 



Californica, 52, 193, 198, 



234, V 219. 

 Chemnitziana, 233, 277, 



P 150. 

 costellata, 52, 198, P 152, 



V2I 9 . 



flexuosa, 208, 233, 249, 

 P 150. 



incisa, V 219. 



maxillata, 82. 



montana, 82. 



quadrata, 60. 



radiata, P 150. 

 Peronaeoderma 

 . ochracea, 104, 210. ] 



punicea, 202. 

 Feronseus 



artemisia, 158. 

 Persicula 



clandestina, P 462. 



fruuientum, in. 



inabricata, 24, in, 112. 



interrupta, in. 



phrygia, in, 112. 



minor, P 461. 



sagittata, in. 

 Persona 



constricta, 24, 231. 



ridens, 24, 338. 

 Petaloconchus 



cereus, W 3 l6 , W3I7. 



cochlidium, W 314, W 315, W 

 3 1 ?- 



flavescens, W 314, W 317. 



raacrophragma, 24, 43, 108, 114, 

 140, 239, 200, 255, 323, 

 35i,0 353,0 364, P 306, 

 P 3 o 9 , V 226, W 313, W 314, 



