PLATE XL. 



Via. Page. 



1. Trigonostoma ampullacenm (Brocchi). Asti. (Harmer Collection) . 399 



2. Trigonostoma (Ventrilia) acutanguhim (Faujas-de-St. Fond). Red Crag. 



(Cambridge Museum) ..... 401 



3. Trigonostoma umbilicare (Brocchi). Asti. (Harmer Collection) . 400 



4. Ditto. Waldringfield. (Ipswich Museum) . . . 400 



5. Merica contorta (Basterot). Boyton. (Jermyn Street) . . 394 



6. Ditto. Boyton. (Cambridge Museum) .... 394 



7. Ditto. Little Oakley. (Harmer Collection) . . . 394 



8. Bonellitia, granulata (Nyst). Bentley. (Harmer Collection) . 405 



9. Bonellitia incerta, sp. nov. Gedgrave. (Norwich Museum) . . 405 



10. Bonellitia serrata (Bronn). Boyton. (Cambridge Museum) . . 404 



1 1 . Ditto. Italian Pliocene. (Harmer Collection) . . . 404 



12. Bonellitia evulsa (Solander). Little Oakley. (Harmer Collection) . 402 



1 3. Ditto. Little Oakley. (Harmer Collection) . . .402 



14. var. semicostata (Sacco). Edgehem. (Harmer Collection) . 402 



15. Sveltia varicosa (Brocchi). Asti. (Harmer Collection) . . 398 



16. Ditto. Waldringfield. (Ipswich Museum) . . . 398 



17. Ditto. Scaldisien, Antwerp. (Harmer Collection) . . 398 



18. Sveltia Lajonkairei (Nyst). Gedgrave. (Jermyn Street) . . 397 



19. Ditto. Scaldisien, Antwerp. (Harmer Collection) . . 397 



20. Ditto. Little Oakley. (Harmer Collection) . . . 397 



21. Ditto. Felixstow. (York Museum) .... 397 



22. Potamides (Ptychopotamides) tricinctus (Brocchi), var. inomata (S. V. 



Wood). Waldringfield. (Cambridge Museum) . .411 



23. var. typica, nov. Little Oakley. (Harmer Collection) . 11 ] 



24. ditto. Little Oakley. (Harmer Collection) . . .411 



25. ditto. Little Oakley. (Harmer Collection) . . . 41 1 



26. var. icenica, nov. Yarn Hill. (Cambridge Museum) . .412 



27. Trophon {Trophonopsis) Harmer I (A. Bell). Wexford. (Harmer Collec- 



tion) ....... 356 



28 Ditto. Wexford. (Harmer Collection) .... 356 



29. Trophon (Trophonopsis) barvicensis (Johnston). Recent. (Harmer 



Collection) . . . . . .357 



30. Ditto. Wexford. (Harmer Collection) 



Jo 7 



