310 



EXPLANATION OF THE PLATES. 



59. Clausilia nigricans, var. du- 



bia,217. 



Table VI. 



60. Bulimus decollatus, 5. 



61. Goodallii, and magni- 

 fied, 6. 



62. BulimusLackamensis, 181. 



63. hordeaceus, 183. 



64. Pupa, 13. 



65. Zua lubrica, and mouth 



magnified, 188. 



66. Acme fusca, and magnfied, 



223. 



67. Bulimus acutus, 185. 



68. cytindrus, 20. 



69. vcntrieosus cop. of 

 Drap. 12. 



70. Balea perversa, and mouth 



magnified, 207. 



71. Achatina acicula, and 



magnified, 191. 



72. Achatina octona, 18. 



73. Succinea putris, 178. 



74. Pfeifferi, 179. 

 74.* var., 179. 

 139. oblonga, 180. 



Table VII. 



75. Cyclostoma elegans, 275. 



76. ferrugbwum, 16. 



77. Carychium minimum, and 



magnified, 221. 



78. Pupa umbilicata, shell and 



its mouth magnified, 

 193. 



79. Pupa marginata, shell and 



its mouth magnified, 

 196. 



80. Vertigo edentula, shell and 



its " mouth magnified, 

 199. 



81. Pupa juniperi, shell and 



its mouth magnified, 

 197. 



82. Pupa anglica, old and 



young shells and their 

 mouths magnified, 1 95. 



83. Vertigo pygmaea, shell and 



its mouth magnified, 

 201. 



84. Vertigo substriata, shell 



and its mouth magnified, 

 202. 



85. Vertigo palustris, shell and 



its mouth magnified, 

 204. 



86. Vertigo pusilla, shell and 



its mouth magnified, 205. 



Table VIII. 



87. Planorbis marginatus, 265. 



88. var., 265. 



89. carinatus, 262. 



90. marginatus jun., 265. 



91. vortex, 267. 



91.* distorted and mag- 



nified, 267. _ 



92. Planorbis carinatus, var. 1., 



263. 



93. Planorbis nitidus, 268. 



94. imbricatus, 261. 



95. corneus, 258. 



96. contortus, 270. 



97. albus, 259. 



98. spirorbis, 268. 



99. Segmentina lineata, 27 J. 



Table IX. 



100. Limnaeus auricularius, 



232. 



101. pereger, 233. 

 101* See Tab. XL 



102. scaturiginum, copied 

 from Drap., 15. 



103. Amphipeplea glutinosa, 



243. 



104. Limnaeus stagnalis, 237. 



105. var. 1., 237. 



106. glaber,242. 



107. palustris, 239. 



108. truncatulus, 240. 



109. Bulimus cxilis, 18. 



110. Physafontinalis,251. 

 110* See Tab. XL 



111. Diastropha contorta, 16. 



112. Aplexus rivalis, 21. 



113. hypnorum, 255. 



