INDEX OF SPECIES. 



19 



Area 



illota, var. 278. 

 imbricata, 249, P 139. 

 inoongrua, 249, P 134, P 135. 

 labiata, 183, 249, 310, 



363, P 134. 

 labiosa, 249, P 134. 

 ?hTrida, 226. 

 microdonta, 75. 

 multioostata, 27, 85, 102, 107, 



130, 260, 183, 234, 249, 



310, P 134, P 136. 

 mutabilis, 200, P 139. 

 iiux, 229, 310. 

 ObiSpoana, 8i. 

 ?ovata, 236, P 538. 

 Pacifica, 229, 282. 

 peotiniformis, 10, 178, 289. 

 pernoides, 283, 351. 

 pholadiformis, 38, 200, 278. 

 pusilla, P 142. 

 quadrilatera, 183. 

 Reeviaua, 62, 200, 278, 310. 

 reversa, 200, 234, 278, 



249, 310, P 136. 

 senilis, 31,0 366, P 132. 

 setigera, P 140. 

 similis, 38, 200, O 229, 249, 



278, P 135. 

 solida, 226, 278. 

 squamosa, P 142. 

 ?squamosa, 62, 249. 

 Tabogensis, 200, 249, O 278, 



P 141. 

 trilineata, 80. 



trapezia, 14, 202, 249, P 550. 

 tuberculosa, 14, 23, 38, 200, 



183, 202, 229, 234, 



249, 278, 310, P 135. 

 umbonata, P 142. 

 vespertilio, 226. 

 Arcopagia 



biplioata, 80, 81. 

 lamellata, 97, 125. 

 medialis, 80. 

 nnda, 81. 



Arcturua 



nidis, 9. 

 Argina 



brevifrong, 31, 154, 

 A rgobuccinum 



caneellatum, 33, 338. 



Chemnitzii, 338. 



nodosum, 182, 261, 270, 



O 367, 338, P 454, V 209. 

 Oregouense, 338. 



scabrum, 338. 

 Argonauta 



argo, 99, 112, 150. 



liians, 153. 



var. papyraoea, 112. 

 Arianta 



arrosa, 157. 



Ayresiana, 158. 



Bridgesii, 158. 



Californiensis, 158. 



Carpenteri, 158. 



Dupetitliouarsi, 158. 



exarata, 158. 



intercisa, 158. 



Isvis, 158. 



Mormonum, 158. 



Niokliniana, 157. 



ramentosa, 158. 



rediraita, 157. 



reticulata, 158. 



Townsendiana, 157. 



Traskei, 158. 



tndiculata, 157. 

 Aricia 



Arabica, n, P 374. 



arabicula, 27, 109, 176, 258, 

 O 328, P 373, P 374. 



caput-serpentis, P 374. 



obvelata, P 374. 



punctulata, 24, 109, 155, 176, 

 O328. 

 Arion 



foliatus, 159, 313. 



foliolatus, 210. 

 Artemis 



Dunkeri,20i, 224, 0278,? 61. 



