PLATE XLV. 



Fig. Page. 



1. Erato Isevis, Donovan. Little Oakley, (Harmei" Collection) . . 511 



2. Erato Maugerise, Gray. Little Oakley. (Harmer Collection) . 512 



3. Voluta Lamberti, J. Sowerby. Felixstow. (Crowfoot Collection) . 512 



4. TAomesns Dalei (J. Sowerby). Coralline Crag. (Harmer Collection) . 520 



5. Ditto. Little Oakley. (Harmer Collection) . . . 520 



6. Ditto. Little Oakley. (Harmer Collection) . . . 520 



7. Orula spelta, Linne. Little Oakley. (Harmer Collection) . . 506 



8. Trivia retusa (J. Sowerby). Little Oakley. (Harmer Collection) . 508 



9. Trivia aiujl'm (S. V. Wood). Little Oakley. (Harmer Collection) . 509 



10. Trivia aveJlana. (J. Sowerby). Walton-on-Naze. (Harmer Collection). 509 



11. Trivia envopsea (Montagu). Little Oakley. (Harmer Collection) . 507 



12. Trivia affinis (Dujardin). Miocene, Touraine. (Harmer Collection) . 510 



13. Ditto. Little Oakley. (Harmer Collection) . . .510 



14. Cassidaria hicatenata, J. Sowerby. Little Oakley. (Harmer Collection) 514 



15. Ditto, var. ecateuata, S. V. Wood. Beach specimen. (Crowfoot 



Collection) . . . . . .515 



16. Ditto, ditto. Sutton. (Norwich Museum) . . . 515 



17. Cassidaria ti/rrheaa, Chemnitz. Wexford. (Harmer Collection) . 515 



