288 



INDEX. 



Sutherlandshire, colonization in, 



185, 191, 195. 262. 

 Swamps, shells in, 23. 

 Swans, eggs of a snail passing the 



digestive system of, 46. 

 Swansea, Helix pisana colonized 



near, 188. 

 Swaysland, Mr., on earth on the 



feet of birds, 159. 



T. 



Tanks, shells in, 19, 21, 22. 

 Tasmania, Limncea stagnalis in, 



195- 



Ljinax viaxivitis m, 207. 

 Tate R., on dispersal by streams and 

 floods, 31. 



on dispersal of eggs of fresh- 

 water shells, 46. 



on mussels clinging by closure, 



57- 

 on snails carried by ships as 



live sea stock, 203. 

 on Dreissoia polyi7iorpha and 

 Helix cantiaiia, 213, 245. 

 Taylor, J. W., on an isolated pond, 

 14. 

 species determined by, 14, 234. 

 Taylor and Roebuck's census of the 

 distribution of British land 

 and fresh- water shells, 219. 

 Teal, mussel carried by, 80. 

 Teator, W. C, on Auodonta in a 

 hole formed by peat-digging, 

 18. 

 Tegetnieier, W. B., on earth on the 



feet of a partridge, 158. 

 Tenacity of life of fresh-water shells, 

 24, 27, 41, 49, 211, 221. 

 of land-shells, 99, 120. 

 of slugs, 167. 

 Terns, cockle and mussel clinging 



to, 59, 60, 

 Testacella, tenacity of life of, 167. 

 cocoons formed by, 168. 

 dispersal of, 169, 171, 194, 

 207. 

 Testacella halioiidea^ 250. 



T. maugei, 228. 



its nest of earth, 16S. 

 T. sciiliiluffi, 250. 

 Thames, shells carried by floods in, 



31. 



discoveiy of Dreissena poly- 

 tnorpha in, 21 1, 215. 

 Thomas, A. P., on tenacity of life 

 in a pond-snail, 27. 

 on dispersal by floods, 32. 

 Thompson, W. ,on pond-snails ad- 

 hering to turtles, 88. 

 on snails planted in Ireland, 

 186. 

 Thomson, J. H., attempted coloni- 

 zation by, 194. 

 Thrush, snail carried and dropped 

 by, 165. 

 probable destruction of colonies 

 by, 190. 

 Timber, dispersal with, 200, 201, 



211, 259, 

 Timber, floating, dispersal with, 33, 

 35, 37, 41, 122, 126 et seq.y 

 139, 169-71, 174, 215,220. 

 seen on the ocean, 126-7, 129, 



131- 



often floats under the surface, 



135. 

 bark often lost in the sea, 135. 

 drift-timber, stranded on coasts, 



127-8, 134-5. 

 on a river-bank, 139. 

 eggs of a lizard found in a cre- 

 vice of, 138. 

 Time, richness of faunas increased 

 by, r23. 

 Nature can afford to wait, 16^. 

 Titmouse, shells found in the crop 



of, 160. 

 Toad, bivalves clinging to, 74. 

 climbing powers of, 76. 

 snail carried by, 89. 

 Todd, J. E., on a turtle canying a 



mussel, 83. 

 Tornadoes, 149. 



Totaniis, bivalves clinging to, 79. 

 Tothby, isolated pond at, 1 1. 

 Trafalgar Square fountains, shells 



^in, 22. 

 Tree-snails, dispersal of, 136. 



