DESCRIPTION OF THE PLATES. 



PLATE XIV. 



Fig. J . A fossil shell of the genus Panopea. 



2. Bivalve of the genus Fistulana. 



3. A fossil oyster from Essex, resembling O. deformis, of Lamarck. 



4. Bivalve of the genus Fistulana. 



5. A fossil oyster from Essex, resembling O. biauriculata, of Lamarck. 



6. Mass of limestone, with the ampullaceous tubes of Fistulante. 



7. The bivalves of Fistnlana, with part of their including tubes. 



8. Fistulana personata, with its rotula. 



9. Snail shell found with the fossil remains of land animals at Brentford 



10. Fistulana personata, without its rotula. 



11. A concamerated teredo. 



12. a, b, Fistulana from France, with their tubes. 



13. Chama calcarata. 



' t Fossil vertebrae of the tail of fish. 



15. ) 



16. Small oyster, with a spathose structure. 



PLATE XV. 



Fig. 1. Ostrea diluviana. 



2. A fossil oyster, to which the name of Crista galli, or cockscomb oyster, seems most 



applicable. 



3. Gryphites, out of the blue lias, Gloucestershire. 



4. Ostrea Jrons -vel folium. 



5. Cast of a shell of the genus Crenatula, from Shotover Hill. 



6. T The outer and inner side of a minute fossil shell, of the genus Crenatula, from 



7. J Bedfordshire. 



8. A fossil shell, of the genus Perna, from Piedmont. 



