EXPLANATION OF THK PLATES. 805 



FIGURE. PAGB. 



11. Murex ramosus, Liun. Troschel. i, t. 11, f. 3, . . 264 



18. Melongena meloiigena, Liun. Troschel, ii, t. 7, f. 13, . 264 



19. Ricinula digitata, Lam. Troschel, ii, t. 13, f. 1, . . 264 



20. ColumbeUa. Troschel, ii, t. 9, 264 



Plate 11. 



Lingual Dentition. 



21. C^^clostoma elegans, Miill. Troschel, i, t. 4, f. 8, . 264 



22. Ampullaria urceus, Miill. Troschel. i, t. 6, f. 4, . 95, 264 



23. " giobosa. Swains. Troschel, i, t. 6, f. 5, . 264 



24. Yalvata tricarinata, Say. Troschel, i, t. 6, f. 14, . 264 



25. Vivipara (Paludina) subcarinata, Say. Troschel, i, t. T. 



f. 5, 265 



26. Littorina irrorata. Say. Ti'oschel, i, t. 10, f. 15, . . 265 



27. Auculosa dissiniilis. Say. Troschel, i, t. 8, f. 9, . . 265 



28. Strombus pugilis, Linn. Troschel, i, t. 16, f. 12, . 265 



29. Pedicularia Slcula, Sw. Troschel, i, t. 16, f. 6, . . 265 



30. Cyprsea exanthema, Linn. Troschel, i, t. 17, f. 7, . 265 



31. Natica duplicata, Say. Troschel, i, t. 15, f. 9, . . 265 



32. Dolium perdix, Linn. Troschel, i, t. 19, f. 3, . . 265 



33. Triton cutaceum, Linn. Troschel, t. 19, f. 10, . . 265 



34. Triton, jaw. (Fischer.) 93, 265 



35. Janthina fibnla. Reeve. Troschel, ii, t. 14, f. 5, . . 265 



36. Scalaria sp., jaw." Troschel, ii, t. 15, f. 1, . . 93,265 



37. " Spiny process of the same, greatly magnified. 



Troschel, ii, t. 15, f. 1, 265 



38. " communis. Lam. Troschel, ii, t. 15, f. 3, . 265 



Plate 12. 



Lingual Dentition. 



39. Solarium perspectivum. Lam. Troschel, ii, t. 15, f. 4 a, 265 



40. " " portion of jaw. Troschel, ii, t. 



15, f. 4 b, 265 



41. Atlanta Keraudrenii, Rang. Troschel, i, t. 2, f. 2, . 265 



42. Pterotrachea carinata, Forsk. Troschel, i, t. 2. f. 12, . 265 



43. Helicina submarginata. Gray. Troschel, i, t. 5, f. 12, . 265 



44. Neritina reclivata, Say. Troschel, ii, t. 16, f. 10, . 265 



45. Nerita planospira, Anton. Troschel, ii, t. 17, f. 20, . 265 



46. Trochus (Pach3q3oma) cselata, Linn. Troschel, ii, t. 



20, f. 12, 265 



47. Phasianella pulla, Linn. Troschel, ii, t. 18, f. 10, . 265 



48. Crepidula fornicata. Say. Troschel, i, t. 13, f. 9, . 265 

 49 " " part of jaw. Troschel, i, t. 13, f. 8, 265 

 50. Emarginula crassa, Sowb. Kefersteiu, t. 74, f, 17. . 265 



30 



