I *>3 ) 



INDEX. 



ACHATINA, 182. 



,, acicula, 182. 



ACME, 187. 



,, lineata, 187. 

 ANCYLUS, 68. 



,, fluviatilis, 69. 

 lacustris, 71. 

 ANODONTA, 16. 



,, anatina, 18. 



cygnea, 17. 



AQUATIC, i. 

 ARION, 76. 

 ater, 77. 

 flavus, 77. 

 hortensis, 78. 



BALIA, 167. 



,, perversa, 168. 

 BIVALVES, I. 



BULIMUS, 146. 



,, acutus, 146. 

 ,, montanus, 147. 

 BYTHINIA, 27. 



,, Leachii, 30. 



tentaculata, 28. 



CARYCHIID^E, 183. 

 CARYCHIUM, 184. 



,, minimum, 184. 



CLAUSILIA, 169. 



biplicata, 175. 



laminata, 176. 



parvula, 177. 



Rolphii, 174. 



rugosa, 171. 



solida, 178. 



COCHLICOPA, 178. 



,, lubrica, 1 8 1. 



,, tridens, 178. 



CONCHIFERA, I. 

 CYCLOSTOMA, 185. 



,, elegans, 186. 



CYCLOSTOMATID;E, 185. 



DREISSENA, 20. 



polymorpha, 2a 



DREISSENID,E, 19. 



GASTEROPODA, 21. 

 GEOMALACUS, 79. 



,, maculosus, 79, 



HELICES, 109. 

 HELICIDJE, 90. 

 HELIX, 109. 



aculeata, ill. 



arbustorum, 120. 



aspersa, 114. 



Cantiana, 121. 



caperata, 136. 



Cartusiana, 122. 



concinna, 124. 



ericetorum, 137. 



fusca, 130. 



hispida, 126. 



hortensis, 118. 



hybrida, 118. 



lamellata, IIO. 



lapicida, 142. 



nemoralis, 117. 



obvoluta, 144, 



Pisana, 132. 



