INDEX. 



269 



Caddis-cases, shells upon, 14, 35. 

 dispersal of shells with empty 

 cases, 35. 

 Canals, dispersal by means of, 196, 



215, 202. 

 Canoes, drifting on the ocean, 128. 

 Cape, Helix aspersa at the, 1 79, 204, 



243- 

 Cardiff, imported snails near, 246, 



253- 

 Carrington, J, T.,on Hehxterrestris 



in Britain, 233. 

 Carson, J., on introduced slugs in 



Victoria, 180. 

 Carychium niinvmim, in kexes, 



140. 

 amongst leaves, 147. 

 Cattle, dispersal by, 12, 156, 

 Cattle-bone, shells amongst, 202. 

 Cattle ponds. See ponds. 

 Cattle-troughs. See troughs. 

 Census of the distribution of British 



land and fresh-water shells, 



219. 

 Centres of *' creation," single, i. 



multiple, 2, 5, 118, 123. 

 Chalk, dispersal with, 197. 

 Chapman, Abel, shells not seen 



upon birds' feet by, 50. 

 on living cockles in birds' 



crops, 161. 

 Chapman, H. V., on a bivalve 



carried by a snipe, 81. 

 Chelydra, mussel carried by, 83. 

 Chemist's shop, foreign snail in, 



201, 255. 

 Chichester, colonization near, 188, 



194. 

 Chislehurst, colonization at, 186, 



194. 

 Choules, A., Physa acuta discovered 



in Britain by, 224. 

 Christy, R. M., on tenacity of life 



in Fahidina, 28, 

 Church, pond-snail on the tower of 



a, 5. 165. 

 Cistern, shells in, 20. 

 City Road, shells in water-pipes of, 



19. 



Clausilia (or Cyclostonui) clinging 



to a bee, 166. 

 Clausilia papillaris in Britain, 261. 

 C. parvula in Britain, 262. 

 C. ruoosa, tenacity of life of, 113. 

 C. solida near Bristol, 261. 

 Clausilia living under the bark of 



trees, 132. 

 Climate, changes of, 117. 

 Climatic barriers, how overcome, 



100. 

 Coal measures of Nova Scotia, fossil 



land-shells of, 115. 

 Cochlicopa luhrica amongst leaves, 



146. 

 Cockerell, T. D. A., Helix potnatia 

 colonized by, 186. 

 on Physa acuta at Kew, 225. 

 Cockle, clinging to dunlins, 59. 

 to a tern, 59. 

 to a peewit, 59. 

 to sandpipers, 60. 

 to a snipe, 60. 

 to a sanderling, 60. 

 Cockles alive in birds' crops, 161, 

 Cocoanut-husks, floating, dispersal 



by, 133. 134. 



Cocoons of Testacellae, 168. 

 Collectors, dispersal by, 13, 16, 258. 

 CoUett, R., on colonization of J7^//a- 



pofiiatia, 187. 

 Collier, E., on Planorbis dilatatus 



and Helix villosa in Britain, 



222, 254. 

 Collings, Mrs., on an attempt to 



colowviQ Helix pisaiia, 189. 

 Colonies, difficulties attending the 



estabhshment of, 82, 96, 119, 



122, 164, 175. 

 isolated, of land-shells, 94. 

 Colonization of molluscs by man, 



23, 182, 205, 263. 

 Columbia river, probable dispersal 



by, 142. 

 Colymbetes flying on board the 



Beagle, 69. 

 Commercial docks, Thames, dis- 

 covery of Dreissena poly- 



morpha in, 211, 215. 

 Conchological Society's list, 209, 



227. 



