PLATE XI. 



Fio. Page. 



1. Purpura lapillns (Linne). 



var. ?'»cra.s,s-a/(^f, J. Sowerby. Little Oakley. (Harmer Collection) 117 



2. var. connectens, nov. Waldringfield. (Harmer Collection) . 118 



3. var. imbricata, Lamarck. Little Oakley. (Harmer Collection) . 117 



4. var. carinata, S. V. Wood. Little Oakley. (Harmer Collection) 117 



5. var. hrevis, S. V. Wood. Little Oakley. (Harmer Collection) . 117 



6. Purpura tefragona (J. Sowerby). Ramsholt. (Ipswich Museum) . IIG 



7. Purpura lapillus (Linne). 



var. oaldeijensis, nov. Little Oakley. (Harmer Collection) . 118 



8. ditto. Little Oakley. (Harmer Collection) . .118 



9. var. iinhricata,\-i?ivi\2kvck. Scaldisien, Antwerp. (Harmer Col- 



lection) . . . . . .118 



10. vnv. oaJdeyensib-, nov. Little Oakley. (Harmer Collection) . 118 



11. Purpura lapillu'i (hmne). Recent, Maine. (Boston Museum, U.S.A.) . 117 



12. Ditto. Recent, Norway. (Harmer Collection) . . .118 



13. Purpura tetragoua, J. Sowerby, var. aJceohita, J. Sowerby. Little 



Oakley. (Harmer Collection) . . . .117 



14. Purpura lapillus, Linne. 



var. elongata, S. V. Wood. Little Oakley. (Harmer Collection) 117 



15. var. oakleyensis, nov. Little Oakley. (Harmer Collection) . 118 



16. vav. newboiirnieusw, nov. Felixstow. (Harmer Collection) . 118 



17. ditto. Bramerton. (Harmer Collection) . .118 



18. Purpura tetragona (J. Sowerby), var. (ilvcolata, J. Sowerby. Little 



Oakley. (Harmer Collection) . . . .116 



19. Purpura lapillus (Linne). 



var. angusta, nov. Little Oakley. (Harmer Collection) . 117 



20. var. hutleyensis, nov. Butley. (Harmer Collection) . .118 



21. var. vulgaris, S. V. Wood. Recent, North Sea. (Harmer 



Collection) . . . . . .118 



22. ditto. Bawdsey. (Harmer Collection) . . .118 



23. ditto. March Gravels. (Harmer Collection) . .118 



