436 



INDEX. 



Helix immitissima, 256. 

 imperfecta, 256. 

 incrassata, 170. 

 incrustata, 170. 

 indentata, 11&. 

 infecta, 161. 

 inflects, 306. 

 infumata, 352. 

 Ingallsiana, 333. 

 Ingersolli, 173. 

 inornata, 108. 

 intercisa, 360. 

 interna, 132. 

 intertexta, 106. 

 introferens, 310. 

 irrorata, 257. 

 isognomostomos, 296. 

 Jacksomi, 275. 

 janus, 115. 

 jejuna, 336. 

 Kelletti, 361. 

 Knoxvillina, 324. 

 kopnodes. See capnodes. 

 labiosa. 334. 

 labrosa, 292, 334. 

 labyrinthica, 259. 

 labyrinthicula, 259. 

 Isevigata, 100. 

 laminifera, 257. 

 Lansingi, 171. 

 lasmodon, 131. 

 Lavelleana, 118. 

 Lawi, 335. 

 Leaii, 299. 

 Lecontii, 313. 

 Leidyi, 257. 

 leporina, 2S3* 3. ] 

 levis, 20, 377. 

 Hgera, 105. 

 liraatula, 117. 

 limitaris, 168. 

 lineata, 185. 

 lineolata, 257. 

 linguifera, 305. 

 Lohrii, 20. 



Loisa = acutedentata. 

 loricata, 313. 

 lucida, 113. 

 lucubrata, 101, 102. 

 macilenta, 131. 

 major, 316. 

 marginicola, 134. 

 Mauriniana, 118. 

 maxillata, 297. 

 Mazatlanica, 21, 168. 

 milium, 119. 

 minuscula, 118. 

 minuta, 344. 

 minutalis, 118. 

 minntissima, 411. 

 Mitchelliana, 323. 

 Mobiliana, 336. 



Helix monodon, 298. 

 Mooreana, 271. 

 mordax, 161. 

 Mormonum, 366. ' 

 Morsei, 121. 

 Mullani, 337. 

 multidentata, 133. 

 multilineata, 320. 

 Nebrascensis, 258. 

 nemoralis, 379. 

 nemorivaga, 358. 

 Newberryana, 374. 

 Nickliniana, 357. 

 nitida, 113, 127. 

 notata, 303. 

 Nuttalliana, 351. 

 obliqua, 258. 

 obstricta, 303. 

 occidentalis, 258. 

 oppilata, 278. 

 Oregonensis, 370. 

 Ottonis, 114. 

 pachyloma, 348. 

 palliata, 302. 

 pallida, 255, 256. 

 paludosus, 255. 

 palustris, 257. 

 Pandoras, 20. 

 Parkeri, 364. 

 parvus, 256. 

 patula, 164. 

 pauper, 166. 

 pedestris, 356. 

 pellucida, 138, 257. 

 Pennsylvanica, 321 ' 

 peregrina, 256. 

 personata, 257. 

 perspectiva, 164. 

 Pisana, 175, 256. 

 placentula, 124. 

 planorboides, 92. 

 planorbula, 283. 

 plebeium, 346. 

 plicata, 278. 

 polychroa, 176. 

 polygyrella, 289. 

 pomum-adami, 132. 

 porcina, 297. 

 Postelliana, 266. 

 priscus, 134. 

 profunda, 338. 

 ptycophora, 356. 

 pulchella, 344. 

 punctata, 257. 

 pura, 115. 

 pusilla, 127. 

 pustula, 286. 

 pustuloides, 287. 

 pygmaea, 411. 

 radiata, 256. 

 radiatulus, 115. 

 Rafinesquea, 105. 



