123 



3400 

 3401 

 3402 

 3403 

 3404 

 3405 

 3406 

 3407 

 3408 



3409 



bidentalis, 

 bidentata, 

 bidentata, 

 bifasciata, 

 bifasciata, 

 bifasciata, 



Lam., 815 

 Gmel., 391 

 Drap., 432 

 Lea, 785 

 Pult., 

 Burrow, 615 



var., 



Teneriffe, 



Germany, 



Italy, 



Isl. of Lucon, 



England, 



Bahia, 



Brazil, 



biformis, 

 bifrons, 



Ziegl., 377 

 Lowe, 373 



Helvetia, 

 Madeira, 



Morel. Moll, de Port., p. 57. 

 Ant. Verz., p. 39, No. 1445. 

 Kust. C. C., pi. 66, f. 7-9. 

 Phil. Icon., v. 1, pi. 1, f. 3. 

 Enc. Meth., v. 2, p. 256. 

 Phil. Icon., pi. 4, f. 8. 

 Mem.Genev.,6, p. 537, pi. l,f.l 

 Kust. C. C., pi. 87, f. 9, 10. 

 Rossm., f. 583, 584. 

 Phil. Icon., pi. 5, f. 12. 

 Fer. pr., 523. 



Sowb. Z. Jour., 1, p. 58, pi. 3, f. 7, 

 Faun. Mad., p. 58, pi. 6, f. 20. 

 Hart.Gast., p. 160, pi. 52, f. 4-6 

 Fer. pr., 350, pi. 128. 

 Menke Synop. ed., 2, p. 127. 

 Enc. Meth., 2, p. 259, No. 134 

 Faun. Mad., pi. 6, f. 22. 

 Brooks' C., f. 103. 

 Mull. Verm., 2, p. 116, No. 315 

 Chemn. 9, pi. 122, f. 1052, a, b. 

 Gmel., p. 3642, No. 231. 

 C. Pfr., 3, pi. 4, f. 13, 14. 

 Hartm. Syst., p. 239. 

 Mich. Comp., p. 12, pi. 14, f. 26, 

 Rossm., f. 14. 

 Held in Isis, 1837, p. 915. 

 Rossm., f. 431. 

 Kust. C. C., pi. 99. f. 4-6. 



Kust. C. C., pi. 61, f. 7-9. 

 Gmel., p. 3642, No. 231. 

 Drap. Moll, No. 25. 

 Ts. Am. Ph. S., 7, pi. 12, f. 18. 

 Wood's Ind., pi. 35, f. 154. 

 Burr. Elem., pi. 27, f. 2. 

 Kust. U. C., pi. 13, f. 1, 2. 

 Wagn. in Spix, p. 22. 

 Fer, pi. 64, f. 1. 

 Moric. Mem. Gen, pi. 1, f. 3. 

 Ann. Phil. N. S, v. 9, p. 412. 

 Spix Test. B, pi. 16, f. 1, 2. 

 Beck Ind., p. 47. 

 Menke Syn. ed. 2, p. 23. 

 Kust. C. C, pi. 98, f. 27-30. 

 Faun. Mad, p. 46, pi. 5, f. 18. 



Helix bituberculata, Fer. 

 Carocolla Guerini, Ant. 

 is Helix paludosa, Pfr. 



Helix virginalis, Jan. 

 is Helix grisea, Linn. 



is Clausilia tridens, Chemn. 

 Helix duplicata, Lowe. 

 Ochthephila bicarinata, Beck. 

 Obelus duplicatus, Hartm. 

 is Achatina sinistrorsa, Chemn. 

 is Helix multistriata, Desh. 

 is Helix inversicolor, Fer. 

 is Helix Michaudi, Desh. 

 is Clausilia bidens, Linn. 

 is Clausilia laminata, Mont. 

 Trochus bidens, Chemn. 

 Helix bidentata, Gmel. 

 Helicodonta bidentata, Fer. 

 Helix pyramidea, Hartm. 

 Conulus unidentatus, Fitz. 

 Petasia fulva, Beck. 

 Trochiscus bidentatus, Held. 

 Helix diodon, Parr. 

 Petasia bidens, Beck. 

 Helix bidens, Ziegl. 

 is Helix malleata, Fer. 

 is Helix bidens, Chemn. 

 is Helix candidula, Stud, 

 is Helix Hugeli, Pfr. 

 is Bulimus acutus, Mull. 

 Troehus bifasciatus, Burrow. 

 Helicigona bifasciata, Fer. 

 Helix pyramidella, Wagn. 

 Helix Bosciana, Fer. 

 Helix Blanchetiana, Morie. 

 Carocolla bifasciata, Gray. 

 Helicina pyramidella, Spix. 

 Geotrochus pyramidella, Beck. 

 Carocolla pyramidella, Menke. 

 is Helix ciliata, Venetz. 



