434 



INDEX. 



Bulimus Nebrascensis, 400. 



ne^lectus, 399. 



nitelinus, 394. 



obscurus, 212. 



octona, 399. 



oetonoides, 194. 



pallidior, 20. 



perversus, 400. 



nuliutus, 399. 



reses, 409. 



spirifer, 20. 



strititus, 84. 



subcylindrieus, 188. 



subula, 194. 



teres, 400. 



undatus, 408. 



urceus, 410. 



vegetus = pallidior, 20. 



venosus, 395. 



vermetus, 399. 



vermiculus, 400. 



vesicalis = sufflatus. 



vexillum, 404. 



virgulatus, 395. 



Xantliostomus, 391. 



zebra, 408. 



Ziebnianni, 394. 

 Bulla truncata, 84. 



Carocolla. See Helix. 

 Chimotrema planiuscula, 432. 

 Cionella acioula, 190. 



subcylindriea, 188. 

 Clausilia contraria, 400. 



Taylori (Balea),= Berendtia, 20, 

 432. 

 Cochlicopa rosea, 84. 

 Ccecilianella acicula, 190. 

 Coelocentrum irregulare, 432. 

 Columna Californica, 400. 

 teres, 400. 

 vermiculus, 400. 

 Conulus, 124. 

 Cylindrella, 381. 

 Cylindrella campanulata, 384. 

 concisa, 385. 

 Goldfussi, 177. 

 Hydeana, 385. 

 irregularis, 20. 

 jejuna, 383. 

 lactaria, 383 

 Neweorabiana, = Berendtia, 



383. 

 Poeyana, 382. 

 pontifica = Macroceramus. 

 Remondi, 21. 

 Rcemeri, 177. 

 Taylori, 20. 



Dendropupa, 213. 



Derocevas, 153. 



Dorcasia, 346. See Helix. 



Elasmognatha, 414. 



Eucalodium Ncwcombianum = Berendtia 



Taylori. 

 Eumelus, 153. 

 Euparypha, 375. See Helix. 



Ferussacia subcylindriea, 187. 

 Fruticicola, 345. See Helix. 



Gastrodonta. See Helix. 

 Geophila, 21. 

 Gland ina, 21. 

 Glandina Albcrsi, 21. 



bullata, 86. 



corneola, 86. 



decussata, 86. 



Marminii, 87. 



parallela, 85. 



Texasiana, 84, 87. 



truncata, 84. 



turris, 21. 



Vanuxemensis, 83. 

 Glyptostoma, 373. 

 Goniognatha, 401. 

 Gonostoma, 261. 



Helicodiscus, 184. See Helix. 



Helix, 2.52. 



Helix abjecta, 320. 



acerrus, 104. 



acutedentata, 21. 



aeruginosa, 355. 



albella, 257. 



albocincta, 348. 



albolabris, 317. 



albolineata, 348. 



albozonata, 348. 



alliarius, 135. 



alternata, 161. 



araplexus, 257. 



Amurensis, 342, 



anachoreta, 358. 



angulata, 255, 257. 



anilis, 21. 



annulata, 122. 



apex, 118. 



appressa, 305. 



arborea, 114. 



arboretorum, 358. 



arbustorum, 257. 



areola ta, 20. 



Ariadnae, 280. 



arrosa, 354. 



aspersa, 380. 



asteriscus, 167. 



attenuata, 255. 



auriculata, 263. 



auriformis, 265. 



avara, 268. 



Ayersiana, 359. 



barbigera, 294. 



Baskervillei, 337. 



bicarinatus, 256. 



