INDEX. 



Abida, 197. 



secale, 197. 



Acarus Limacum, 114. 

 Achatina,67. 110. 190. 

 acicula, 26. 45. 49. 187. 



191. 

 — — bicarinata, 8. 



clavulus, 6. 



follieulus, 15. 



lubrica, 188. 



octona, 18. 195. 



Acicula, 191. 



Acme, 67. 221, 222, 223. 



fusca, 38. 49. 219. 223. 



lineata, 223. 



Acteon, 228. 



denticulata, 225. 



Alsea cylindrica, 201. 

 marginata, 196. 



nitida, 1 99. 



palustris, 204. 



revoluta, 200. 



substriata, 203. 



vulgaris, 202. 



Alasmodon, 69. 289. 293. 295. 



elongatus, 38. 48. 53. 



margaritifer, 294. 



margaritiferus, 293. 



Roissyi, 38. 53. 



Ampbipeplea, 67, 230, 231. 243. 



246. 

 glutinosa, 25. 39. 243, 244. 



involuta, 23. 38. 50. 53. 



245. 



Amplexus, 143. 



crenellus, 142. 



paludosus, 142. 



Ampullariadae, 57. 89. 

 Ancylina, 247. 



Ancylus, 54. 66. 70. 230. 247. 

 249, 250. 



Ancylus elegans, 42. 



fluviatilis, 41. 48. 219. 



249. 

 lacustris, 250. 



■ sinuosus, 249. 

 Anodon, 69. 289. 



cygneus, 26. 41. 46. 288, 



289, 290. 292. 

 Anodonta anatina, 292. 



avonensis, 291, 292. 



cellensis, 289, 290. 292. 



complanata, 291. 



- compressa, 291. 



crassa, 292. 



intermedia, 292. 296. 



paludosa, 290. 



piscinalis, 290. 



— — ponderosa, 291. 



rhombea, 291. 



— — rostrata, 291. 



sulcata, 289. 



ventricosa, 290. 292. 



Anomia, 73. 



Ansulus, Ansylus, 247. 



Aplexus, 67. 143. 181. 224. 230, 



231. 255. 

 • hypnorum, 48. 255. 



— — rivalis, 21. 

 Arianta, 137. 



arbustorum, 138. 



Arion, 104. 111. 



antiquorum, 45. 



ater, 47. 103, 104. 106. 108. 



112. 



circumscriptus, 107, 108. 



empiricorum, 105. 



hortensis, 51. 106, 107. 



■ ' subflavus, 105. 

 Arionidae, 101. 103, 104. 164. 

 Ascidia, 73. 



Assiminia, 85. 



