4474 
4475 
4476 
4477 
4478 
4479 
4480 
4481 
4482 
4483 
4484 
4485 
4486 
4487 
tricincta, 
tridens, 
tridentata, var., 
tridentata, 
“ var., 
tridentina, 
trifasciata, 
trifasciata, 
trigonophora, 
triodonta, 
triodonta, 
triplicata, 
tristis, 
trivittata, 
trizona, 
aval; 
trochiformis, 
trochiformis, 
ff var., 
trochilus, 
trochlearis, 
Trochoides, 
Trochoides, 
; ‘ var., 
Muhlf., 920 
Mill., 
Binn., 1074 
Say, 1073 
Fer., 996 
Chemn., 162 
Stentz, 29 
Lam., 1075 
Jan, 1086 
D’Orb., 1042 
Fer., 
Pir 24 
Born, 973 
Ziegl., 920 
Mont., 36 
Fer., 539 
Flem., 36 
Andrz, 420 
Desh., 612 
Poiret, 466 
181 
Hungary, 
Germany, 
Virginia, 
New York, 
New England, 
Canada, 
Pennsylvania, 
Jamaica, 
Tranquebar, 
Cuba, 
Europe, 
Texas, 
Guayaquil, 
France, 
Corsica, 
Madagascar, 
Hungary, 
England, 
Isl. of Opara, 
Isl. of Taheiti, 
England, 
Europe, 
New Guinea, 
France, 
Italy, 
Mediterranean, 
Sicily, 
Spain, 
Rossm., f. 87, 504. 
Rossm., f. 33, 305, 720. 
Jour. Bost. 8. N.H.,8, pl. 18, f.3. 
Fer., pl. 51, f. 3 
Wood Supp., pl. 7, f. 11. 
Gould’s Invert., f. 115. 
Bost. Journ., 3, pl. 17 et 18. 
Fer., pl. 54, A, f. 4-6. 
Chemn. 11, pl. 213, f. 3018-19. 
Kust. C. C., pl. 29, f. 9-18. 
Jour. d’Hist. N., pl. 42, f. 2. 
Fer., pl. 69, D, f. 2. 
Voy. Am. Mer., pl. 24, f. 1-3. 
Fer., pr. 476. 
Phil. Icon., pl. 9, f. 3. 
Kust. C. C., pl. 14, f. 5, 6. 
Rossm., f. 87. 
Fer., pl. 69, A, f. 6. 
Kust. C.C., pl.'79, f. 5,6, 18, 14. 
Beck Ind., p. 25. 
Held Isis, 1837, p. 911. 
Rossm., f. 504. 
Kust. C. C., No. 474. 
Kust., pl. 79, f. 5, 6. 
Fer., pl. 68, f. 10. 
Kust., pl. 79, f. 18, 14. 
Mont. T. B., pl. 11, f. 9. 
Kust. C. C., pl. 18, f. 7, 8. 
Ant. Verz., p. 40, N. 1464. 
Flem. Brit. An., p. 260. 
Fer., pl. 85, f. 1-4. 
Fer., pl. 106, f. 10-12. 
Drap. Moll., pl. 5, f. 3-5. 
Kust. C. C., pl. 28, f. 18, 19. 
Risso, 4, p. 152. 
Beck Ind., p. 10. 
Rossm., f. 347, 348. 
Held Isis, 1837, p. 913. 
Kust. C. C., No. 134. 
Desh. Lam., p. 77. 
Phil. Sicil 2; py217- 
Pfr. Symb., 2, p. 38. 
Kust., pl. 23, f. 12, 18. 
Kust., pl. 28, f. 24, 25. 
Mich. Compl., pl. 15, f. 11-14. 
is Helix trizona, Ziegl. 
is Bulimus tridens, Miill. 
is Helix fallax, Say. 
Helicodonta tridentata, Say. 
Tridopsis lunula, Rafin. 
Tridopsis lunula, Beck. 
Tridopsis tridentata, Beck. 
is Helix laevipes, Miill. 
is Helix Cubensis, Pfr. 
is Helix obyoluta, Miill. 
is Helix Texasiana, Moric 
Helicodonta triodonta, D’Orb. 
is Pupa triplicata, Studer. 
Helix ceratina, Shuttle. 
is Helix sepuleralis, Fer. 
Helix tricincta, Mihlf. 
Helix zonata, var., Fer. 
Helix planospira, var., Cantr. 
Campylaea trizona, Beck. 
Cingulifera trizona, Held. 
Helix Rumelica, Ziegl. 
Helix rhodopea, Friv. 
Helix Sanderiana, Friv. 
Helix fumigata, Friy. 
Helix Langiana. 
is Helix fulvya, Drap. 
Helicella trochiformis, Fer. 
Carocolla cireumdata, Miihlf. 
is Helix fulva, Drap. 
is Helix ericetorum, Miill. 
is Helix Gaberti, Lesson, 
Helix conica, Drap., Risso. 
Helicella conica, Fer. 
Helicella solarium, Risso. 
Theba conica, Beck. 
Theba Trochoides, Beck. 
Xerophila coniea, Held. 
Helix suleulata, Crist. et Jan. 
Helix rugosiuscula, Mich. 
Helix rugosa, Arad, et Magg. 
Helix pumilio, Pfr. 
Helix catenata, Parr. 
Helix remissa, Parr. 
Helix turritella, Parr. 
Helix verticillata, Parr. 
