SYSTEMATIC INDEX. 



Page 



162. Helix californiensis.Z-ea.lTO 

 1<J3. Helix carpenteri, Newtm 171 



164. Helix mormonum, Pfr. 1.71 



165. Helix sequoicola, X G. Coop. 



172 



166. Helix traskii, Ncwc. 173 



167. Helix ^upetithouarsi, Desk. 



173 



168. Helix ruficincta, Newc. 174 



169. Helix gabbi, Newc. 175 



170. Helix facta, Neivc. 175 



171. Helix kelletti, Fbs. 176 



172. Helix stearnsiana, Gabh. 177 



Euparypha, Hartm. 177 



173. Helix areolata, Shi/. 177 



174. Helix tryoni, Neivc. 17S 



175. Helix pandorce, Fbs. 179 



176. Helix levis, Pfr. 180 



TacJiea, Leach. 180 



177. Helix hortensis, J/m(7. ISl 



Pomatia, (Leach) Beck. 183 



178. Helix aspersa, Mull. 183 



Poli/mita, Beck. 184 



179. Helix varians,.J//.e. 184 



Ampelita, Beck. 185 



180. Helix rowelli, Neicc. 185 



Eucalodiiim? Crosse & 



Fischer. 188 



181. ?Cylindrellataylori,P/r.lS9 



Coluinua, Perky. 189 

 Ehodea, H. &. A. Ad. 190 



182. Columna californica, Pfr. 



Bulimus, Scoi'OLi. 



183. Bulimus spirifer, Gabb. 



ISiiliniulds, Leach. 

 Drymmts, Albers. 



184. Bulimulus serperastrus 



190 

 190 

 191 



191 

 192 



Paoe 

 Liostracus, Albers. 193 



185. Bulimulus ziegleri, Pfr. 193 



186. Bulimulus marieliuus, Poey. 



193 



187. Bulimulus floridanus, Pfr. 



194 



188. Bulimulus dormani, W. G. 



Binn. 194 



Mesembrmua, Albers. 



195 



Say. 192 



189. Bulimulus pallidior, Shy. 



195 



190. Bulimulus excelsus, Gld. 19S 



191. Bulimulus inscendens, W. 



G. Binn. 197 



192. Bulimulus multilineatus, 



Say. 197 



Thaumastus, Albers. 193 



193. Bulimulus californicus, 



lire. 199 



194. Eulimiiius patriarcha, W. 



G: Binn. 200 



195. Bulimulus alternatus, Say. 



200 



196. Bulimulus schiedeanus, 



Pfr. 204 

 Variety mooreanus. 205 



Mormus, Albers. 206 



197. Bulimulus sufflatus, Gld. 206 



198. Bulimulus pilula, W. G. 



Binn. 206 



Scutalus, Albers. 207 



199. Bulimulus proteuSiSrorferZ/j. 



207 



200. Bulimulus dealbatus, Say. 



208 



201. Bulimulus xantusi, W. G. 



Binn. 210 



Peronceits, Albers. 



210 



202. Bulimulus artemisia, W. 



G.Binn. 210 



