PLATE VIII. 



Fig. i. Einar ginula sibogae n. sp. 



Fig. 2. Sub emar ginula plana n. sp. 



Fig. 3. Sub emar ginula dub ia 11. sp. 



Fig. 4. Tooth of Radula of Neritina brevispina Lam. var. mutica Martens. 



Fig. 5. Teeth of Radula of Neritilia rubida Pease. 



Fig. 6. Teeth of Radula of Pseudococculina rugosoplicata n. sp. 



Fig. 7. Teeth of Radula of Pseudococculina granulata n. sp. 



Fig. 8. Teeth of Radula of Cocculina subquadrata n. sp. 



Fig. 9. Teeth of Radula of Cocculina oblonga n. sp. 



Fig. 10. Teeth of Radula of Cocculina ovata n. sp. 



Fig. 11. Teeth of Radula of Cocculina alveolata n. sp. 



Fig. 12. Teeth of Radula of Cocculina subcompressa n. sp. 



Fig. 13. Teeth of Radula of Pectinodonta sp. 



