MANUAL OF THE MOLLUSCA. 



PLATE IX. 



Turritellida. 



PAGE 



1. Turritella, imbricata, L, W.Indies 132 



2. (Mesalia) sulcata, var. Lam, Eocene, Paris 132 



3. _ (Proto) cathedralis, Brongn. f. Miocene, Bordeaux... 132 



4. Aclis perforatus, Mont. sp. f . Guernsey 132 



5. Caecum trachea, Mont. 4. Britain 133 



6. - (fry, magnified f) 133 



7. Vermetus lumbricalis, Gm. sp. (young.) W. Africa 133 



8. Siliquaria anguina, L. sp. . New Guinea 133 



9. Scalaria pretiosa, Lam. China 133 



Litorinidte. 



10. Litorina litorea, L. Britain 134 



11. - - (Tectaria) pagodas, L. . Zanzibar 133 



12. - (Fossarus) sulcatus, S. Wood. Mediterranean 135 



1 3. - ( Modulus) tectum, Gm. sp. N. Australia 135 



14. (Risella) nana, Lam. sp. . Tasmania 135 



1 5. Solarium perspectivum, L. sp. f . China 135 



16. Lacuna pallidula, Da Costa. Britain 136 



17. Rissoa labiosa, Mont. Britain 136 



18.-- - (Hydrobia) ulvse, Penn. Britain 137 



19, - (Jeffrey sia) diaphana, Alder. (Operculum) Britain 137 



20.- - (Skenea) planorbis, O. Fabr. (^ inch). Britain 137 



21. Nematura deltee, Bens. f. India 137 



22. Lithoglyphus fuscus, Pfr. sp. Danube 138 



23. Amnicola isogona, Say. IT. States 131 



24. Litiopa bombix, Kiener. Mediterranean 136 



25. Truncatella subtruncata, Mont. sp. f . Mediterranean 137 



Paludinidce. 



26. Faludina Listeri, Hanley. |. Norwich 138 



27.- (Bithinia) teutaciilata, Mont. Norwich 138 



28. Valvata piscinalis, Miill. Norwich 140 



29. cristata, Mull. Norwich 140 



30. Ampullaria globosa, Sw. \. India 138 



31 . - ( Marisa) cornu-arietis, L. sp. Brazil 139 



32. - (Lanistes) Bolteniana, Chernn. sp. i. Nile 139 



33. Amphibola avellana, Chemn. sp. New Zealand 139 



54. Paludomus aculeatus, Gm. sp. Ceylon .' 133 



Neritidce. 



35. Nerita ustulata, L. Scinde 141 



36. ( Velates] perversus, Gm. sp. Eocene, Soissons 141 



37. 38. Pileolus plicatus, J. Sby. Bath oolite, Ancliff 141 



39. Neritina zebra, Brug. Pacific 141 



40. crepidularia. Less. India 142 



41 . Navicella porcellana, Chemn. sp. Mauritius Pacific 142 



