INDEX. 



287 



Sovverby, G. B,, Helix limbata 

 found near London by, 

 251. 



Sower by, G. B. (grandson), on 

 Helix limbafa, 252. 



Sowerby, J. De C, on Dreissena 

 polymorpha and Testacella 

 maiigei in Britain, 210, 228, 



Sowerby, W., on Physa acuta in the 

 Royal Botanic Society's Gar- 

 dens, 226. 



Sparrows, suggested dispersal by, 



. 23- 

 Species, closely-allied, cannot estab- 

 lish themselves in each other's 

 territories, 96. 

 Sphcciinn or Pisidiitjn, clinging to 



crayfishes, Zt,, 

 Sphm'iiun corm7c?ii, clinging to the 

 larva of a dragon-fly, 61. 

 to Nepa, 62. 

 to Dylisais, 63 et seq. 

 to newts, 70,76,77. 

 to frogs, 72, 76. 

 to toads, 74. 



carried over land by water- 

 beetles, 68. 

 by a newt, 77. 

 by a snipe, 81. 

 S. lacHstt'e, in a new isolated pond, 

 12. 

 clinging to a water-beetle, 65. 

 S. ovale,its indigenousness in Britain, 



209. 

 Sphagnum^ a Helix found in a 



consignment of, 199. 

 Spicer, J. W. G., slugs found in the 



crop of a bird by, 177. 

 Spix and Martius, on the drift-wood 



of the Amazons, 129. 

 Springall, C, a crow caught by a 



mussel, 60. 

 Standen, R., on shells in brick-pits, 



17. 



in artificial lakes, 19. 



on a snail's eggs attached to a 



water-beetle, 47. 

 on plants and earth adhering to 



birds, 52, 54. 

 on FisidiKvi clinging to Nepa, 



62. 



on Sphicrium clinging to water - 



beetles, 64, 65. 

 on the flying habits of water - 



beetles, 66. 

 beetles carrying shells caught 



on the wing by, 68, %"] . 

 on bivalves clinging to newts, 



71. 

 to frogs, 'JT,, 76. 

 to toads, 75. 

 on a mussel clinging to a duck, 



79. 

 to a heron, 80. 

 on an Aiicyhis adhering to a 



water-beetle, 87. 

 on a Limncea adhering to a toad, 



89. 

 on isolated colonies of land- 

 shells, 94. 

 Hyalinia draparnaldi found in 

 a fernery near Manchester 

 by, 199. 

 Stark, Mr., on Dreissena poly- 

 morpha in Scotland, 216. 

 Stearns, R. E. C., on tenacity of 

 life in a land -snail, iir. 

 on dispersal with dye-woods, 

 202. 

 Stettin, colonization near, 193. 

 Stewart, S. A., on the Irish speci- 

 men of Helix per sonata, 

 257. 

 Stone, probable dispersal with, 96. 

 Streams. See Currents. 

 Strickland, H. E., on Dreissena 

 polymoipha in Britain, 213, 

 215, 216. 

 Stuchbury, Mr,, Dreissena poly- 

 morpha planted at Bristol by, 

 183. 

 Succinea, reviving after being frozen, 

 41. 

 found in a bird's crop, 160. 

 eggs (probably of a) found 

 upon the foot of a bird shot 

 on the wing, 47, 157. 

 Succinea arlm'ea, living under bark, 



132. 

 S. piitris carried by floods, 142. 



its ova probably carried by 

 birds, 157. 



