Vallonia persica, 249. 
pulchella, 248, 249, 250, 251, 
252. a 
renaica, 251. 
thn ret 251. 
VALLONIID&, 248. 
VALVATA, 377. 
Valvata arentfera, 352. 
bicarinata, 348, 349, 750, 351. 
carinata, 349. 
confusa, 349. 
cristata, 347. 
depressa, 348. 
yaelog ast 
normalis, 752. 
simplex, 319, 
sincera, 347, 748, 350, 352. 
striata, 348. 
Ae aaey es 346, 348, 749, 350, 
ol, 
unicarinata, 349. 
VALVATID, 7/0. 
Ventridens, 190. 
VERTIGO, 240, 242. 
Vertigo milium, 228, 239, 247, 242, 243. 
ovata, 228, 272, 243, 244. 
VERTIGOPSIS, 238. 
VERTILLA, 247. 
VITREA, 777, 178, 180. 
Vitrea cellaria, 33, 177. 
draparnaldi, 778, 179, 180, 197° 
electrina, 167, 212. 
hammonis, 178, 7So, 181, 182, 
183. 
indentata, 178, 
190. 
VIVIPARA, 353, 306. 
Vivipara contectoides, 139, 754, 355. _ 
intertexta, 303. 
VIVIPARIDA, 352. 
180, 782, 183, 
Zonites alachuana, 189. 
alliarius, 180. 
umbilicatus, 182. 
upsont, 242, 244, 
ZONITIDA, 174. 
ZONITOIDES, 180, 786. 
Zonitoides arboreus, 178, 180-186, 787, 
188, 190, 211, 214. 
minusculus, 180, 186, 739. 
nitidus, 786. 
