10 



257. Melania subularis, Lea. 312 



258. Melania succinulata, Anth. 313 



259. Melania sulcosa, Lea. 314 



260. Melania symmetrica, Conr. 315 



261. Melania symmetrica, Hald. 31G 



262. Melania tabulata, Anlh. 317 



263. Melania taeniolata, Anth. 318 



264. Melania Taitiana, Lea. 319 



265. Melania tecta, Anth. 320 



266. Melania tenebro-cincta, Anth. 321 



267. Melania tenebrosa. Lea. 322 



268. Melania terebralis, Lea. 323 



269. Melania teres, Lea. 324 



270. Melania textilosa, Anth. 325 



271. Melania torquata, Ijcu. 326 



272. Melania torta. Lea. 327 



273. Melania torulosa, Anth. 328 



274. Melania tracta, Anth. 329 



275. Melania trochiformis, Conr. 330 



276. Melania Troostiana, Lea. 331 



277. Melania tuberculata, Lea. 332 



278. Melania turgida, Xea. 333 



279. Melania uncialis, Hald. 334 



280. Melania undosa, Anth. 335 



281. Melania undulata. Say. 336 



282. Melania valida, Anth. 337 



283. Melania Vanuxemensis, L^ea. 338 



284. Melania varicosa. Ward. 339 



285. Melania venusta, Lea. 340 



286. Melania versipellis, Anth. 341 



287. Melania vestita, Conr. 342 



288. Melania vicina, Anlh. 343 



289. Melania virens, Anth. 344 



290. Melania virgata, Lea. 345 



291. Melania virginica, Gmel. 346 



292. Melania viridis. Lea. 347 



293. Melania viridula, Anth. 343 



294. Melania vittata, Anth. 349 



295. Melania vittata, Raf. 350 



296. Melania wahlamatensis, L. "W. 351 



297. Melania Warderiana, Leu. "W. 352 



298. Melania zonalis, Raf. 353 



299. Lithasia geniculata, Hald. 354 



300. Lithasia lima, Conr. 355 



301. Lithasia nuclea. Lea. 356 



302. Lithasia nupera. Say. 357 



303. Lithasia salebrosa, Conr. 358 



304. Lithasia Showalterii, Lea. 359 



305. Gyrotoma alabamensis, Lea. 360 



306. Gyrotoma ampla, Anth. 361 



307. Gyrotoma babylonica, Lea. 362 



308. Gyrotoma Buddii, Lea. 363 



309. Gyrotoma bulbosa, Anth. 364 



310. Gyrotoma carinifera, Anth. 365 



311. Gyrotoma castanea, Lea. 366 



if) 



Gyrotoma constricta. Lea. 

 Gyrotoma costata, Shuttl. 

 Gyrotoma curta, Mirjhels. 

 Gyrotoma cylindracea, Miill. 

 Gyrotoma demissa, Anth. 

 Gyrotoma excisa. Lea. 

 Gyrotoma fiiniculata, Lea. 

 Gyrotoma glandula. Lea. 

 Gyrotoma glans, Lea. 

 Gyrotoma globosa, Lea. 

 Gyrotoma Hartmanii, Lea. 

 Gyrotoma incisa. Lea 

 Gyrotoma laciniata. Lea. 

 Gyrotoma ovalis, Anth. 

 Gyrotoma ovoidea, Shuttl. 

 Gyrotoma pagoda. Lea. 

 Gyrotoma pumila. Lea. 

 Gyrotoma pyramidata, Shuttl. 

 Gyrotoma quadrata, Anth. 

 Gyrotoma recta, Anth. 

 Gyrotoma robusta, Anth. 

 Gyrotoma salebrosa, Anth. 

 Gyrotoma Showalterii, Lea. 

 Gyrotoma virens. Lea. 

 Gyrotoma "wetumpkaensis, L 

 Leptoxis afEnis, Hald. 

 Leptoxis altilis. Lea. 

 Leptoxis ampla, Anth. 

 Leptoxis angulata, Conr. 

 Leptoxis Anthonyi, Redjield. 

 Leptoxis carinata, Anth. 

 Leptoxis carinata, DeKay 

 Leptoxis carinata. Lea. 

 Leptoxis carinifera, Anth. 

 Leptoxis cincinnatiensis, Lea 

 Leptoxis contorta. Lea. 

 Leptoxis corpulenta, Anth. 

 Leptoxis costata, Anth. 

 Leptoxis crassa, Hald. 

 Leptoxis crenata, Hald. 

 Leptoxis dentata, Couthouy. 

 Leptoxis dentata, Lea. 

 Leptoxis dilatata, Conr. 

 Leptoxis dissimilis, Say. 

 Leptoxis elegans, Anth. 

 Leptoxis flammata, Lea. 

 Leptoxis formosa. Lea, 

 Leptoxis Foremani, Lea. 

 Leptoxis fusca, Hald. TAT. 

 Leptoxis gibbosa, Lea. 

 Leptoxis Grifiithiana, Lea. 

 Leptoxis incisa. Lea. 

 Leptoxis inflata. Lea. 

 Leptoxis Integra, Say. 

 Leptoxis iaogona. Say. 



