DESCRIPTION OF THE PLATES. 



139 



FIG. PAGE 



31,32. Bulimus acutus 35 



33,34. Clausilia bidens 3S 



3.5,36. Clausilia biplicata 39 



37,38. Clausilia rugosa 40 



.39,40. Clausilia Rolpliii 41 



41,42. Clausilia dubia 41 



Plate V. 



1. Pupa muscorum 42 



2. Pupa unidentata 43 



3. Pupa bidentata 43 



4,5. Pupa marginata 44 



6. Pupa umbilicata 45 



7,8. Pupa Anglica 46 



9. Pupajuniperi 47 



10. Vertigo edentula 48 



11. Vertigo pygmtea 48 



12. Vertigo cylindrica 49 



13. Vertigo sexdentata 49 



14. Vertigo palustris 50 



15. Vertigo Alpestris 51 



16. Vertigo pusilla 51 



17. Vertigo angustior 52 



18. Azeca tridens 53 



19. 20, 21, 22. Helix hortensis 57 



23,24. Helix hybrids 08 



25, 26, 27, 28. Helix Arbusto- 



rum 59 



Plate VI. 



1,2,3. Helix Pomatia 54 



4,5. Helix aspersa 55 



6. Helix aspersa, a small var. . 56 



7. Helix aspersa, young 56 



8. 9, 10, 11, 12, 1.3, 14, 15. 



Helix nemoralis .56 



Plate VII. 



1,2,3. Helix lapicida 60 



4,5. Helix pulchella 61 



6,7. Helix crenella 62 



8,9,10. Helix Cautiana 63 



11, 12, 13. Helix Carthusiana. 63 



14, 15. Helix rufescens 64 



16, 17. Helix limbata 65 



F'<»- PAGE 



18. Helix fulva 65 



19,20. Helix fusca 66 



21. Helix lamellata 67 



22. Helix aculeata 68 



23, 24. Helix granulata 69 



25,26,27. Helix revelata 69 



28,29. Helix sericea 70 



.30,31. Helix hispida 71 



.32,33. Helix concinna 72 



34,35. Helix depilata 72 



Plate VIII. 



1, 2, 3. Helix virgata 73 



4, 5. Helix virgata, a lusus 



7iatnj-(c 74 



6.7. Helix caperata 74 



8, 9, 10, 11, 12, 13. Helix 



pisana 75 



14, 15. Helix pisana, young ... 76 

 16,17,18. Helix ericitonnn... 76 



19. Helix ericitorum, a lusus 

 naturcE 77 



20. 21, 22, 23, 24. Helix ro- 

 tundata 78 



25,26. Helix pygmsea 79 



27,28. Helix imibilicata SO 



Plate IX. 



1, 2. Helix cellaria 81 



3,4. Helix alliaria 82 



5,6. Helix nitidula 82 



7.8. Helix lucida 83 



9,10. Helix radiatula 84 



11, 12. Helix crystallina 84 



13, 14. Helix excavata 85 



15, 16. Helix pura 86 



16,* 17. HelLx obvoluta 87 



18, 19, 20. Helix margaritacea 87 



21,22,23. Vitrina pellucida... 8K 



24, 25. Testacella Haliotoidea. 89 

 26,26.* Limax maximus !»1 



27. Limax flavus 92 



28. Limax carinatus 92 



29. Limax agrestis 93 



30. Limax gagates? var 94 



