PLATE VIII. 



4. 2. Helix pyrostoma, Feruss. 



3. . . Madagascariensis , Lam. 



4. Helicella l&vipes, Feruss. Helix spadicea y Gmel. 



5. Helix sub-dentata, Feruss. 



6. . . albella, Ghemn. side view. 



7. . . planata, Chemn. 



8. Helicella sepulcralis, Feruss. 



9. Helix ochroleuca, Feruss. Helix albella, Chemn. 



10. . . epistylium, Gmel. 



11. . . strobilus, Feruss. 



12. . . nitida, Drap. 



13. Cyclostorna bulimoides, Oliv. 



14. Melania buccino'idea. 



15. Oyclostoma unicolor, Oliv. 



16. Bulimus labrosus, Oliv. 



17. Melania cos lata, Oliv. 



18. Helix villosa, Drap. 



