EXPLANATION OF THE PLATES. 
319 
Fig. 
53. Clausilia bidens, and 
mouth magnified. 
54. Rolphii, and mouth 
magnified. 
55. biplicata, and mouth 
magnified. 
56* papillaris^ and mouth 
magnified. 
57. lahiata^ and mouth 
magnified. 
58. nigricans, and mouth 
magnified. 
59. nigricans, var. dubia. 
Table VI. 
60. Bulimus decollatus, 
61. Goodallii^ and magni- 
fied. 
62. lackamensis. 
63. hordeaceus. 
64. Pupa. 
65. Zua lubrica, and mouth 
magnified. 
66. Acicula fusca, and magni- 
fied. 
67. Bulimus acutus. 
68. cylindrus. 
69. ventricosus. 
70. Balea perversa, and mouth 
magnified. 
71. Achatina acicula, and 
magnified. 
72. octona, 
73. Succinea putris. 
74. PfeifFeri. 
74. * Pfeifferi, var. 
139. oblonga. 
Table YII. 
75. Cyclostoma elegans. 
76. ferrugineurn, 
77. Carychium minimum, and 
magnified. 
78. Pupa umbilicata, shell and 
its mouth magnified. 
Fig. 
79. Pupa marginata, shell and 
its mouth magnified. 
80. Vertigo edentula, shell 
and its mouth mag- 
nified. 
81. Pupa juniperi, shell and 
its mouth magnified. 
82. anglica, old and young 
shells and their 
mouths magni6ed. 
83. Vertigo pygmsea, shell 
and its mouth mag- 
nified. 
84. substriata, shell and 
its mouth magnified. 
85. palustris, shell and its 
mouth magnified. 
86. pusilla, shell and its 
mouth magnified. 
Table VIII. 
87. Planorbis marginatus. 
88. var. 
89. carinatus. 
90. marginatus jun. 
91. vortex. 
91*. distorted and mag- 
nified. 
92. carinatus, var. 1. 
93. nitidus. 
94. imbricatus. 
95. corneus. 
96. contortus. 
97. albus. 
98. spirorbis. 
99. Segmentina lineata 
Table IX. 
100. Limn^us auricularius. 
101. pereger. 
101*. See Tab. XL 
102. scaturiginum^ copied 
from Drap. 
103. Amphipeplea glutinosa. 
