INDEX OF SPECIES. 



19 



Area 



illota, rar. O 278. 

 irabriuata, O 249, P 139. 

 incougrua, O 249, P 134, P I33- 

 labiata, O 1S3, O 249, 310, 



O 3(':>. P '34. 

 labiosa, O 249, P 134. 

 yiuri'la, 226. 

 microiloiita, 75. 

 niulticoslata, 27, 85, 102, 107, 



130, 260, O 1S3, O 234, O 249, 



O 310, P 134, P 136. 

 mutabilis, 200, P 139. 

 mix, 229, O 310. 

 Obisjwana, Si. 

 fovata, O 236, P 538. 

 Pacifica, O 229, O 282. 

 pectiniforniis, 10, 17S, 289. 

 p«rnoides, O 283, O 351. 

 pholadiformis, 38, 200, 278. 

 pusilla, P 142. 

 quadrilatera, O 183. 

 Reeviaiia, 62, 200, 278, O 310. 

 reversa, 200, 234, 278, 



O 249, 310, P 136. 

 senilis, 31, 366, P 132. 

 setigera, P 140. 

 si mi lis, 38, 200, 229, 249, 



O 27S, P 135. 

 golida, O 226, 278. 

 squamosa, P 142. 

 ?.>quamosa, 62, O 249. 

 Tabogensis, 200, 249, O 278, 



P 141. 

 trilineata, 80. 



trapezia, 14, O 202, 249, P 550. 

 tuberculosa, 14, 23, 38, 200, 



O 183, O 202, O 229, 234, 



249, 278, O 310, P 135. 

 umbonata, P 142. 

 vespertilio, 226. 

 Arcopagia 



biplicata, 80, 81. 

 latnellata, 97, 125. 

 medialis, 80. 

 unda, 81. 



Arcturus 



rudis, 9. 

 Argina 



bievifrotis, 31, 154. 

 A rgobuccinum 



cancellatiiin, 33, 338. 



Clu-ninitzii, O 33S. 



iiodosum, 1S2, 261, O 270, 

 O 367, O 338, P 454, V 209. 



Oregoiien.ae, O 338. 



scaliruin, O 338. 

 Argonauta 



arg". 99, "2, 150. 



Iiians, 153. 



rar. papyracea, 112. 

 Arianta 



arrosa, 157. 



Ayresiana, 158. 



Bridge.sii, 158. 



Call fori) iensis, 1 58. 



Carpt'iiteri, 1 58. 



Dupetitbouarsi, 158. 



exarata, 158. 



intercisa, 158. 



levis, 158. 



Mormoiuini, 15S. 



Nickliniana, 157. 



ramentosa, 15S. 



rcdiniita, 157. 



reticulata, 158. 



Towusendiaiia, 157. 



Traskei, 158. 



tudiculata, 157. 

 Aricia 



Arabiea, 11, P 374. 



arabicula, 27, 109, 176, 258, 

 328, P 373, P 374. 



caput-serpentis, P 374. 



obvelata, P 374. 



puiietulata, 24, 109, 155, 176, 

 O32S. 

 Arion 



foliatus. 159, 313. 



foliolatus, O 210. 

 Artemis 



Dunkeri, 201,0 224,0278,? 61. 



