11. Helix aspersa, Muller. 



12. 13. 14. . ^ .. (monstrosities). 



15. Pouchet Adans (Turbo variegatus, List.) 



16. Helix alonensis, Feruss. 



17. Helix plicata, Lin. 



18. . . aspersa, List. 



19. . . carabinata, Feruss. 



20. . . ringens (Tomigeres ringens, Leach. Anostoma, Lam.). 



21. • • imperator (Poly donles imperator, Montf.). 



22. . . carocolla, Chemn. (Carocolla, Lam.) 



23. . . sorora, Feruss. 



