280 



INDEX. 



Macgillivray, J., on shells in water- 

 pipes, 19. 



McLachlan, R., on caddis-larvae 

 attaching living shells to their 

 cases, 35. 



McMurtrie, J., colonization by, 192. 



McNabb, D., on a cockle clinging 

 to a sandpiper, 60. 



Macpherson, H. A., on dispersal by 

 birds, 50. 



Madeira, possesses many endemic 



land-shells, 91. 



shells from Porto Santo have 



not established themselves in, 



96. 



introduced molluscs in, 97, 179, 



181, 199, 200. 

 tenacity of life in snails of, 109. 



Magpie killing snails before swallow- 

 ing them, 160. 



Mallard. See Duck. 



Mammalia, dispersal by, 50, 155. 



Man, dispersal by, 23, 96, 156, 173, 

 178, 209. 

 extermination by, 181. 

 shells introduced into the 

 British Isles by, 209. 



Man-of-war, French, dispersal of 

 "escargots" by, 205, 206. 



Manchester, Dreissena polyinorpha 

 in water-pipes of, 18. 

 shells in artificial lakes near, 



19. 

 colonization near, 185. 

 Hyaliitia draparnaldi'xw a fern- 

 ery near, 199. 

 Plaiiorbis dilatatiis discovered 



near, 221. 

 Biilimiis octontis found in green- 

 houses near, 261. 



Manchester Museum, specimens 

 illustrating means of dis- 

 persal exhibited in, 62, 64, 

 65, 71. 



Alargaritana viargaritifera, in 

 Island of Anticosti, 18. 



Marine bivalves clinging to other 

 animals by closure of the 

 valves, 58. 



Marine currents. See Currents. 



Marsh-slug. See Limax hvvis. 



Marsh, W, A., on shells in a horse- 

 trough, 20. 



in non-permanent water, 24. 



on dispersal by floods, 32. 

 Marshes, dry in summer, shells in, 



23- 



Martello-towers near Eastbourne, 



snails in disused gardens of, 



198. 

 Martin, Mr., on dispersal oiLimncca 



while floating, 36. 

 Maryland, whirlwind in, 149. 

 Mason, J. E., on isolated ponds, ii, 



12. 

 Mason, P. B., on Bnlinms detritus 



at Burton-on-Trent, 259. 

 Maton and Rackett, on Helix ponia- 



tia in Britain, 237. 

 Medicinal purposes, dispersal of 



molluscs for, 203, 235, 243. 

 Mendes da Costa. See Da Costa, 



E.M. 

 Merret, on Helix pomatia in Britain, 



235- 

 Migi-ation, voluntary, 4, 26, Il6, 



144. 

 Miller, J. S., on Testae ella maugei 

 and Biili/nus goodallii in 

 Britain, 228, 230. 

 ^Miller and Sweet's nurseries, Testa- 

 ccUa majigei and Bitli7)iiis 

 goodallii in, 228, 230. 

 Miocene land-shells, 115. 

 Mississippi, rafts of, 129. 

 Mohawk River, molluscs colonized 



in, 184. 

 Molge. See Newts. 

 Molluscs, rapid increase of intro- 

 duced species, 25, 179. 

 reasons for the differences in 

 the distribution of fresh- water 

 and land kinds, 95. 

 European species widely dis- 

 persed by man, 178. 

 colonization of, by man, 182. 

 Molluscs, fresh-water, wide distri- 

 bution of, 4. 

 tenacity of life of, 24, 27. 

 means of dispersal of, 27. 

 dispersal of floating kinds, 35. 

 in brackish water, 39. 



