228 
EXPLANATIONS TO THE PLATES. 
FIG. PAGE 
68. Snail and shell of Helix ericetorum . . .141 
69. Helix pulchella, var. costata . . . .139 
70. „ Cartusiana .127 
71. „ pygmcea ....... 144 
72. „ revelata .132 
73. „ Pomatia .134 
74. „ rotundata .142 
75. „ hispida .129 
76. „ rufescens .* 128 
77. „ concinna .129 
78. „ caperata ....... 125 
79. „ lapicida .140 
80. „ virgata .123 
Plate IX. to face page 168. 
81. Bulimus montanus .148 
82. „ obscurus ...... 149 
83. „ acutus .147 
84. Zua lubrica . ..151 
85. Azeca tridens .152 
86. Balea perversa .164 
87. Clausilia laminata . . . . . .167 
88. Vertigo alpestris .161 
89. Achatina acicula . . „* . . .171 
90. Vertigo pygmcea .160 
91. Clausilia rugosa .168 
92. ,, var. dubia . . . . . .169 
93. „ Bolphii . . . . . .169 
94. Animal of Clausilia . . . . . .165 
95. Clausilia biplicata ' . . . . . .166 
96. Pupa secale . ..157 
97. „ umbilicata .153 
98. „ muscorum .154 
99. „ Anglica .155 
