TAB. XLV. 



FIG. 



1. Monodonta Lyellii, If Arch., sp. Young shell. For the adult condition see Part I, Tab. XI, 



fig. 4. 



2. Natica arata, Lye. Great Oolite. Enlarged (page 97). 



3. Nerita clavatula, Lye. Great Oolite. Enlarged (page 98). 



4. Ceritella fusiformis, Lye. Great Oolite. Enlarged (page 12). 



5. minutissima, Lye. Great Oolite. Enlarged (page 11). 



6. Monodonta composita, Lye. Great Oolite. Enlarged (page 23). 



7. Pleurotomaria recondita, Lye. Great Oolite. Enlarged (page 106). 



8. Burtonensis, Lye. Forest Marble (page 105). 

 8 a. The base. 



8 b. Portion of the surface magnified. 



9. Monodonta sparsistriata, Lye. Great Oolite. Magnified (page 22). 



10. Pleurotomaria Bathonica, Lye. Great Oolite. Magnified (page 105). 



11. 11 a. Onustus Burtonensis, Lye. Forest Marble. Slightly enlarged (page 103). 



12. Trochus strigosus, Lye. Cornbrash (page 29). 



13. Turbo depauperatus, Lye. Forest Marble. See also Pleurotomaria pagodus, Part I, Tab. X, 



fig. 9. 



14. Trochus Guisei, Lye. Great Oolite. Magnified (page 21). 



15. Turbo Burtouensis, Lye. Forest Marble (page 100). 

 10. Trochus Burtonensis, Lye. Forest Marble (page 99). 



17. Monodonta tegulata, Lye. Forest Marble, Specimen with fine striatious (page 102). 



18. Forest Marble. Enlarged. 



19. arata, Lye. Forest Marble. Enlarged (page 102). 



20. Variety with the encircling lines more distantly arranged. 



21. Natica insignis, Lye. Great Oolite. Enlarged (page 97). 



22. (Euspira) alta, Lye. Forest Marble (page 97). 



23. Solarium turbiniformis, Lye. Forest Marble (page 104). 



23 a . A portion of the surface enlarged. 



23 b. ,, The lower surface. 



24. 24 a. Monodonta comma, Lye. Forest Marble (page 101). 



24 b. ,, ,, A portion of the surface enlarged. 



25. Acteonina Wiltonensis, Lye. Forest Marble (page 107). 



26. 26 a. Solarium Waltoni, Lye. Forest Marble. Upper surface and profile (page 104). 



26 b, c. Forest Marble. Lower surface. 



27. 27 a. Solarium Bathonicum, Lye. Great Oolite. The upper surface and profile (page 23). 



27 b, 27 c. The lower surface of a smaller specimen. 

 2/ d. A portion of the upper surface magnified. 



28. 28 a, 28*. Phasianella variata, Lye. Page 104. 



29. Acteonina Suessea, Lye. Forest Marble (page 107). 



30. 30 a. Natica texata, Lye. Forest Marble (page 96). 



31. 31 a. Mouodonta Waltoni, Lye. Forest Marble. Enlarged (page 101). 



31 J. A portion of the striated surface magnified. 



