INDEX. 



109 



lubrica, 83. 

 lucorum, 69. 

 lutea, 55. 



MANTLE, 4. 

 maritimus, 54. 

 margaritifer, 35. 

 marginata, 30, 88. 

 marginatus, 47. 

 Marsh plants, 63. 

 maximus, 90. 



Medicinal properties, 20, 21. 

 Medii Templi, 81. 

 minimum, 63. 

 montanus, 14, 64, 65. 

 Moorhen, 56. 

 Moss-shell, 64. 

 Mud-shells, 49, 50. 

 muscorum, 58. 

 Musical sounds, 21. 

 Mussels, 34. 



NAUTILEUS, 48. 



Necklaces of shells, 76. 



Needle agate shell, 62. 



nemoralis, 5, 23, 24, 25. 



Neritina, 11, 18, 55. 



Nervous system, 6. 



nigricans, 67, 87. 



nitens, 29. 



nitidula, 6. 



nitidulus, 29. 



nitidum, 43. 



nitidus, 29, 48. 



Number of British mollusks, 



Nuphar, 56. 



OBLONGA, 61. 

 oblongus, 56. 

 obscurus, 6, 14, 64. 

 obvoluta, 81. 



operculum, 13, 86. 



ostralegus, 56. 



Otters eating mussels, 38. 



ovale, 43. 



ovata, 49. 



Oyster- catcher, 56. 



PAINTER'S MUSSEL, 35. 

 Paludina, 11, 13, 52, 55. 

 pallidum, 43. 

 palustris, 13, 49. 

 Patella, 56. 

 Pearl mussel, 35. 

 Pearls, 35. 



Pectinibranchiata, 1 1 . 

 pellucida, 62. 

 peregra, 13, 49. 

 Perforation by snails, 78. 

 perversa, 64, 88. 

 pfeifferi, 58, 61. 

 Pheasants eating slugs, 90. 

 Physa, 11, 18, 50, 56. 

 pictorum, 35, 36. 

 pisana, 76. 

 piscinalis, 51, 56. 

 pisidioides, 42. 

 Pisidium, 43, 44, 45. 

 Planorbis, 11, 16, 45, 46, 48, 

 49, 50. 



polymorpha, 40. 



pomatia, 18, 68, 71, 73, 80. 



Pond shells, 44. 



Preparation of specimens, 94. 



Prickly snail, 82, 83. 



Propagation, 71. 



pseudacorus, 63. 



pulchella, 28. 



Pulmonobranchiata, 11, 13. 



Pupa, 6, 14, 15, 29, 30, 58, 63, 88. 



pusillum, 43. 



putris, 57, 58. 



pygmsea, 84, 88. 



