181 



trochiformis, 



4484 trochiformis, 



4485 var., 

 trochilus, 

 trochlearis, 

 Trochoides, 



4486 Trochoides, 



4487 " var., 



Mont., 36 England, 

 Fer., 539 Isl. of Opara, 



Isl. of Taheiti, 

 Flem., 36 England, 

 Andrz, 420 Europe, 

 Desh., 612 New Guinea, 

 Poiret, 466 France, 



Italy, 



Mediterranean, 



Sicily, 



Spain, 



Rossm., f. 87, 504. 

 Rossm., f. 33, 305, 720. 

 Jour. Bost. S. N. H.,3, pi. 18, f.3. 

 Fer., pi. 51, f. 3. 

 Wood Supp., pi. 7, f. 11. 

 Gould's Invert., f. 115. 

 Bost. Journ., 3, pi. 17 et 18. 

 Fer., pi. 54, A, f. 4-6. 

 Chemn. 11, pi. 213, f. 3018-19. 

 Kust. C. C., pi. 29, f. 9-13. 

 Jour. d'Hist. N., pi. 42, f. 2. 

 Fer., pi. 69, D, f. 2. 

 Voy. Am. Mer., pi. 24, f. 1-3. 

 Fer., pr. 476. 

 Phil. Icon., pi. 9, f. 3. 

 Kust. C. C., pi. 14, f. 5, 6. 

 Rossm., f. 87. 

 Fer., pi. 69, A, f. 6. 

 Kust. C. C., pi. 79, f. 5,6, 13, 14, 

 Beck Ind., p. 25. 

 Held Isis, 1837, p. 911. 

 Rossm., f. 504. 

 Kust. C. C., No. 474. 

 Kust., pi. 79, f. 5, 6. 

 Fer., pi. 68, f. 10. 

 Kust., pi. 79, f. 13, 14. 

 Mont. T. B.,pl. 11, f. 9. 

 Kust. C. C., pi. 13, f. 7, 8. 

 Ant. Verz., p. 40, N. 1464. 

 Flem. Brit. An., p. 260. 

 Fer., pi. 85, f. 1-4. 

 Fer., pi. 106, f. 10-12. 

 Drap. Moll., pi. 5, f. 3-5. 

 Kust. C. C., pi. 23, 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, p. 217. 

 Pfr. Symb., 2, p. 38. 

 Kust., pi. 23, f. 12, 13. 

 Kust., pi. 23, f. 24, 25. 

 Mich. Compl., pi. 15, f. 11-14. 



is Helix trizona, Ziegl. 

 is Bulimus tridens, Mull. 

 is Helix fallax, Say. 

 Helicodonta tridentata, Say. 

 Tridopsis lunula, Rafin. 

 Tridopsis lunula, Beck. 

 Tridopsis tridentata, Beck. 



is Helix laevipes, Mull, 

 is Helix Cubensis, Pfr. 

 is Helix obvoluta, Mull, 

 is Helix Texasiana, Moric 

 Helicodonta triodonta, D'Orb. 

 is Pupa triplicata, Studer. 

 Helix ceratina, Shuttle, 

 is Helix sepulcralis, Fer. 

 Helix tricincta, Muhlf. 

 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, Friv. 

 Helix Langiana. 

 is Helix fulva, Drap. 

 Helicella trochiformis, Fer. 

 Carocolla circumdata, Muhlf. 

 is Helix fiilva, Drap. 

 is Helix ericetorum, Mull, 

 is Helix Gaberti, Lesson. 

 Helix conica, Drap., Risso. 

 Helicella conica, Fer. 

 Helicella solarium, Risso. 

 Theba coniea, Beck. 

 Theba Trochoides, Beck. 

 Xerophila conica, Held. 

 Helix sulculata, 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. 



