exilis 4 Gm, — Bul, exilis var. 
y Gm. — Bul. virgulatus, 
exoleta Say. (Jay cat. 45.) 
expansa Róm, foss, — Rotella 
Róm. Leonh. 1837. 115. 
explanata Müll. 228. Rm. VIII. 
40 v. albella L. 
Nanina exilis B, 
— Schranck v. lapicida 
jv. 
extensa Müll. 254. Lm. 18. 
(Eurycratera B.) 
Eydouxii Val. M. P. 
faba Gm. 259 — Bulimus. 
Fabricii (Petasia) B. 21. 
faciola Dr. Mich. v. fasciola. 
Falconeri (Helicoph.) Gray 
Proc. 1834. 63. (Eurycratera D.) 
* fallaciosa F. 
fallax Say Phil. journ. V. 119. 
fanulum Mif. (Villa cat.) 
Farinesii Villa v. cornea, 
fascelina Z. v. faustina, (Ant.) 
fasciata Dlv. Mal. 460 v. Bornii. 
Risso 72. 
Guild, Bowd, Conch. 7.23. 
F. 503 — Cyclostoma. 
— . Gm, 106 — Palud. achat. 
Turt. Mont. 446. 
fascicularis Gm.. 185 —  Valv. 
piscin. 
fasciola Dr. Dh. 122, 
fasciolata Poir. 79 v. cespitum? 
— Less. v. zonaria. 
F. 391 — Bulimus. 
— Spix — Ampullaria. 
Wood spl. 8. 73 
Melania. 
fastigiata Hutt. Wgm. A. 1839. 
II. 222. 
fastigiata (Polygyra) Say. 
178 
—- 
Faunus (Cochlostyla) Brod. Pr. 
Z. S. 1840. 180 — Bulimus. 
fausta Lowe. Dh. 205. 
faustina Z. Rm, II. 4. (Cam- 
pylea D.) 
faux nigra Ch. v. lactea. 
Favannii F. 408 — Bulimus. 
Feburiana (Campylea B.) v. Le- 
feburiana. 
fenestrata Sow, Pr. Z. S. 
1840. 137. 
Ferranti Dh. foss. 8. 
ferruginea Risso 72. 
-— Lea Phil. 1841. 464 
v. ' Cailiiaudi. 
FerussaciLess. Coq.315, (Geo- 
trochus B.) 
Ferussaci Jan mant. 
dringtonii. 
festiva Z. v. variabilis, 
fibula Brod. v. hifasciata Lea. 
Wood spl. 8. 66 — Palu- 
dina? 
ficuum MIf. v. signata. 
fidelis Gray. Proc. 1834, 67. 
figulina Parr. Rm. IX. 9. 
filiceti (Microcystes) B. 2. 
filicina Schmidt, Pfr. Symb. 
I. 39. 
filicum Kryn, Mosc. IX. (He- 
licella B.) - 
filimargo Z. Rm. VI. 33. (Leu- 
cochroa B.) 
filosa Dh. M. P. 
fimbriata Fér. M. P. 
fimbriolata (Theba) B. 15. 
Findelii Z. v. banatica. 
finitima Fér. M. P. 
fissidens Val. M. P. 
flammata F. 385 — Bul. strigatus 
Brug. (D.) 
flammea Müll, Gm, 88 
limus. 
1. v. Co- 
bu- 
