434 



INDEX. 



Bulimus Nebrascensis, 400. 



neglectus, 399. 



nitelinus, 394. 



obscurus, 212. 



octona, 399. 



octonoides, 194. 



pallidior, 20. 



perversus, 400. 



radiatus, 399. 



reses, 409. 



spirifer, 20. 



striatus, 84. 



subcylindricus, 188. 



subula, 194. 



teres, 400. 



undatus, 408. 



urceus, 410. 



vegetus = pallidior, 20. 



venosus, 395. 



vermetus, 399. 



vermiculus, 400. 



vesicalis = sufflatus. 



vexillum, 404. 



virgulatus, 395. 



Xanthostomus, 391. 



zebra, 408. 



Ziebmanni, 394. 

 Bnlla trnncata, 84. 



Carocolla. See Helix. 

 Chimotrema planiuscula, 432. 

 Cionella acicula, 1 90. 



subcylindrica, 188. 

 Clausilia contraria, 400. 



Taylori (Balea),= Berendtia, 20, 



432. 



Cochlicopa rosca, 84. 

 Ccecilianella acicula, 190. 

 Coelocentrum irregulare, 432. 

 Columna Californica, 400. 

 teres, 400. 

 vermiculus, 400. 

 Conulus, 124. 

 Cylindre.lla, 381. 

 Cylindrella campanulata, 384. 

 concisa, 385. 

 Goklfussi, 177. 

 Hydeana, 385. 

 irregularis, 20. 

 jejuna, 383. 

 la'ctaria, 383 

 Newcombiana, == Berendtia, 



383. 



Poeyana, 382. 

 pontifica = Macroceraraus. 

 Remondi, 21. 

 RcEmeri, 177. 

 Taylori, 20. 



Dendropupa, 213. 

 Deroceras, 153. 

 Dorcasia, 346. See Helix. 



Elasmognatha, 414. 



Eucalodium Newcombianum = Berendtia 



Taylori. 

 Eumelus, 153. 

 Euparypha, 375. See Helix. 



Ferussacia subcylindrica, 187. 

 Fruticicola, 345. See Helix. 



Gastrodonta. See Helix. 

 Geophila, 21. 

 Glandina, 21. 

 Glandina Albersi, 21. 



bullata, 86. 



corneola, 86. 



decussata, 86. 



Marminii, 87. 



parallela, 85. 



Texasiana, 84, 87. 



truncata, 84. 



turris, 21. 



Vanuxemensis, 83. 

 Glyptostoma, 373. 

 Goniognatha, 401. 

 Gouostoma, 261. 



Helicodiscus, 184. See Helix. 



Helix, 252. 



Helix abjecta, 320. 



acerrus, 104. 



acutedentata, 21. 



seruginosa, 355. 



albella, 257. 



albocincta, 348. 



albolabris, 317. 



albolineata, 348. 



albozonata, 348. 



alliarius, 135. 



alternata, 161. 



amplexus, 257. 



Amurensis, 342. 



anachoreta, 358. 



angulata, 255, 257. 



anilis, 21. 



annulata, 122. 



apex, 118. 



appressa, 305. 



arborea, 114. 



arboretorum, 358. 



arbustorum, 257. 



areolata, 20. 



Ariadnse, 280. 



arrosa, 354. 



aspersa, 380. 



asteriscus, 167. 



attenuata, 255. 



auriculata, 263. 



auriformis, 265. 



avara, 268. 



Ayersiana, 359. 



barbigera, 294. 



Baskervillei, 337. 



bicarinatus, 256. 



