PLATE VII. 



Fig. 



1. Chenmitzia Hamptonensis, p. 50. 



] a. magnified. 



2. Cerithium limaeforme, p. 30. 



3. sexcostatum, p. 30. 



3a magnified. 



4. Chenmitzia Leckenbyi, p. 50, magnified. 



5. Wetherellii,j. 50. 



5a. magnified. 



6. Nerinsea Eudesii, p. 33. 



Ga. magnified. 



7. Nerinsea Voltzii, p. 32, young. 



la, section magnified. 



8. Nerinaea Dufrenoyi, p. 34. 



Sa. magnified. 



8(5. section magnified. 



8c, 8e. p. 34, another variety. 



8d. portion magnified. 



9. Nerinsea Stricklandi, j. 35 



9. portion magnified. 



10. lOc. Nerinsea punctata,jo. 35. 



10a. portion of external surface magnified. 



10#. section magnified. 



11. Nerinsea Voltzii, p. 32. 



lla. section. 



12. Nerinaea funiculis, p. 36. 



12o. portion of the surface magnified. 



123. section magnified. 



13. Chenmitzia Lonsdalei, p. 49, the young shell. 

 13a. the adult shell. 



14. Cerithium Roissii, p. 32. 



140. section of the shell. 



15. Chenmitzia simplex, p. 49, reduced one half. 



