6341 
6342 
6343 
6344 
6345 
6346 
6347 
6348 
6349 
6350 
6351 
6352 
6353 
6354 
6355 
6356 
6357 
6358 
6359 
6360 
6361 
6362 
6363 
6364 
6365 
6366 
6367 
6368 
6369 
6370 
6371 
thermalis, Boubé, 
truncatula, Mill., 
ss var., 
“ “ 
umbilicata, Adams, 
umbrosa, Say, 
ss var., 
Vahlii, Beck, 
Virginiana, Lam., 
Cumingiana, Pir, 
acuta, Drap., 
ancillaria, Say, 
ss var., 
aurea, Lea, 
castanea, Lam., 
contorta, Mich., 
distorta, Hald., 
elliptica, Lea, 
elongata, Say, 
fontinalis, Linn., 
fragilis, Michels, 
gyrina, Say, 
cs var., : 
heterostropha, Say, 
ut var., 
hypnorum, Linn., 
ef Var., 
marmorata, Guild., 
Novae Hollandri,Blain., 
obesa, De Kay, 
osculans, Hald., 
sc var., 
princeps, Phil., 
rivalis, Sowb., 
rivularis, Phil., 
scalaris, Jay, 
Sowerbyana, D’Orb., 
271 
Carniola, 
12 France, 
New Bedford, 
New York, 
Connecticut, 
Greenland, 
4 Virginia, 
GENUS AMPHIPEPL 
Lucon, 
GENUS PHYSA. 
8 Sicily, 
Pennsylvania, 
Ohio, 
Virginia, 
1 Garonne, 
Algiers, 
St. Louis, 
Indiana, 
New York, 
2 France, 
Maine, 
Ohio, 
Indiana, 
7 New York, 
Virginia, 
3 France, 
New York, 
St. Vincent, 
New Holland, 
Mohawk River, 
Mexico, 
Yucatan, 
Chili, 
Sicily, 
Florida, 
Villa Cat., p. 32. 
Pfr. Syst. Anord., pl. 4, f. 27. Buccinum truncatulum. 
Turt. Man., f. 108. 
Drap. Moll., pl. 3, f. 5-7. 
Jour. B.S. N. H., 2, pl. 3, f. 14. 
Hald., pl. 7. 
Jour. Ac. N. S:, 2, p. 167. 
Moll. Ind., p. 4. 
Encyl. Meth., 2, p. 362. 
EA. Nilsson. 
Zool. Proc., 1845, p. 68. 
Lamarck. 
Drap. Moll., pl. 3, f. 10, 11. 
Hald., pl. 3, f. 1-10. 
Sillim. Jour., 35, pl. 8, f. 3. 
Trs. Am. Ph.S., 6, pl. 23, f. 106. 
Sowb. Gen., f. 7. 
Mich. Cog. Alger., f. 26, 27. 
Hald., pl. 5, f. 1-3. 
Trs. Am. Ph. S., 5, pl. 19, f. 83. 
JoursAc> N-'S.,/2;ip.17l: 
Sowb. Gen., f. 8. 
Hald., pl. 3, f. 11-13. 
Hald., pl. 4, f. 1-6. 
Trs. Am. Ph.S., 5, pl. 19, f. 83. 
Hald., pl. 2, f. 1-9, pl. 1. 
Trs. Am. Ph.S.,6, pl. 28, f. 103. 
Hald., pl. 5, f. 4-9. 
JoursAc: IN. S5/2; p.. lvls 
Zool. Jour., 3, p. 534. 
Blain. Mal., pl. 37, f. 3. 
N. H. N. York, pl. 5, f. 86. 
Hald., pl. 2, f. 11, 12. 
Chenu, pl. 1, f. 3. 
Sowb. Gen., f. 9. 
Phil. En. Sic., pl. 9, f. 1. 
Hald., pl. 4, f. 9. 
Lymnaea fossaria, Turt. 
Lymnaea minuta, Drap. 
is Lymnaea caperata, Say. 
Lymnaea elongata, Say. 
Limnophysa Vahlii, Beck. 
is Lymnaea ecatascopium, Say. 
Physa Sayi, Tappan. 
is Physa heterostropha, Say. 
Physa rivularis, Phil. 
is Physa gyrina, Say. 
is Physa hypnorum, Linn. 
Bulla fontinalis, Linn. 
Physa elliptica, Lea. 
Physa aurea, Lea. 
Bulla hypnorum, Linn. 
Physa elongata, Say. 
is Physa contorta, Mich, 
