INDEX. 



7.^^ 



Holloway, a Helicina found among 



orchids in, 199, 263. 

 Homing, faculty of, 117. 

 Hope, Mr. , said to have imported 



Helix pomatia, 243. 

 Horehound, snail in a parcel of, 201, 



255- 

 Horse -troughs, shells in, 20. 

 Horsley, J. W., on a mussel clinging 



by closure, 58. 

 colonization by, 254, 263. 

 Hot-houses. See Greenhouses. 

 Howard, C, said to have imported 



Helix pomatia, 236. 

 Hudson, B., on living bivalves in 



the stomachs of frogs, 45. 

 on bivalves clinging to frogs, 



73. 

 on Ancyliis adhering to mussels, 



88. 

 to a frog, 89. 

 on slugs in kexes, 171. 

 Humble-bee, snail clinging to, 85, 



165. 

 Hurricanes, dispersal by, 43, 145, 



146, 174. 

 Hyalima cellaria in St. Helena, 179. 

 H. draparnaldi in a greenhouse at 

 Preston, 199. 



I. 



Ice, floating, dispersal by, 41, 123. 

 Ingalls, Dr., on an isolated pond, 



17. 

 Insects, dispersal by, 47, 61, 85, 154, 



165. 

 Insular faunas, richness of, increased 



by time, 123. 

 Ireland, whirlwind in, 150. 

 shower of hay in, 153. 

 colonization of snails in, 186. 

 Helix persojiata and Bttlimns 

 exilis in, 257, 258. 

 Islands, land-shells of, often ende- 

 mic, 90. 

 And see Oceanic islands. 

 Islands, floating. See Floating 

 islands. 



Isocardia cor clinging to fish-hooks, 



58. 

 Isolated colonies of land-shells, 94. 

 Isolated ponds. See Ponds. 

 Isolated water, absence of opercu- 



late snails from, 86. 

 Italy, colonization of molluscs in, 



192. 

 Helix pomatia said to have 



been imported from, 236, 240, 



243- 



Jackdaw, a snail probably carried 



by, 165. 

 Jamaica, shells in cemented tanks 



in, 22. 

 Jeffery, W., on shells in non- 

 permanent water, 25. 

 on dispersal by floods, 32. 

 on bivalves clinging to newts, 



colonization by, 188, 194. 

 Jeffreys, J. G., Dreissena poly- 



morpha carried with water, 



18. 

 on the diffusion of fresh- water 



shells, 30. 

 on AnodontcB clinging by 



closure, 57. 

 on shells in kexes, 140. 

 amongst leaves, 146. 

 on dispersal by wind, 154. 

 on Helix pisana near Swansea, 



188. 

 on probable dispersal of Testa- 

 cell se by man, 207. 

 on Dreissena polymorpha and 



Planorbis dilatatus in Britain, 



212, 221. 

 on Testacella matigei and Buli- 



mus goodallii in Britain, 229, 



230. 

 on exotic shells found in the 



British Isles, 227, 252, 253, 



256, 257, 262. 

 on doubtfully indigenous 



species, 209, 240, 246, 247, 



250. 



