INDEX. 



285 



Helix pomatia in Britain, 

 213, 241. 

 Reid, C, on isolated ponds, 6. 



on shells in horse-troughs, 21, 



on the Trafalgar Square foun- 

 tains, 23. 



on transportal of plants and 

 shells by birds, 52. 



on shells adhering to plants, 



53- 

 on birds ejecting the contents 



of their crops, 163. 

 on Helix obvobita, 249. 

 Reservoirs, shells in, 18. 

 Rhaphazdus, tenacity of life of, 1 14. 

 Rhode Island, snail from Cuba 



found in, 201. 

 Rich, Mr., Claiisilia solida found 



near Bristol, 262. 

 Riches, J. T., on a bivalve clinging 



to a frog, 72. 

 Rigsby, an isolated pond at, 12. 

 Rimmer, R., on establishment of 

 Helix pisana near Swansea, 

 188. 

 on its indigenousness in Britain, 



246. 

 on the indigenousness of 

 Testacella haliotidea in Bri- 

 tain, 250. 

 on the occurrence of Clausilia 

 solida near Bristol, 262. 

 Riplingham, an isolated pond at, 



10. 

 Rivers, want of continuity of, 98. 

 trees and pumice stranded o 



the banks of, 139. 

 And see Currents. 

 Roberts, G., on dispersal of 

 LiniJUScB while floating, 35. 

 on living snails in a bird's crop, 



161, 163. 

 on a thrush dropping a snail, 

 165. 

 Robertson, Mrs. D., Hehx villosa 

 discovered near Cardiff by, 



253- 

 Robson, C, on newts extruding 



shells, 46. 

 Roebuck, W. D., on shells in a 



water-trough, 20. 



on LiDincViB in puddles, 25. 

 Rogers, T,, attempted colonization 



of Helix pisana by, 191. 

 Planorbis dilatatus discovered 



in Britain by, 221. 

 Roman snail. See Helix pomatia. 

 Romans, Helix pomatia said to have 



been carried to Britain by the, 



240. 

 Rossmassler, Professor, on Dreis- 



sena polymorpha attaching 



itself to crayfishes, 84. 

 Royal Gardens. See Kew. 



S. 



Sahara, a snail's eggs found upon 

 the foot of a bird shot in the, 



47- 

 Sailors, dispersal by, 203, 259, 

 St. Helena, its isolation, 93. 

 its land-shells, 93, 94. 

 absence of fresh-water shells 



from, 93. 

 introduced molluscs in, 179, 



182. 

 extermination of native species 

 in, 181. 

 Salt-water, injurious effects of con- 

 tact with, 39, 41, 120, 121, 

 134. 172. 

 revival of snails after submer- 

 sion in, 41, 120, 134. 

 seeds and shells in birds' crops 

 protected from, 163. 

 Salter, J. H., on Helix lactea in 



Yorkshire, 253. 

 Sanderling, cockle clinging to, 



60. 

 Sandpipers, cockles clinging to, 

 60. 

 fresh-water mussels clinging to, 



79. 

 Sandwich Islands, shells of, 91, 94, 



96. 

 restricted specific areas in, 91, 



96. 

 isolated position of, 94. 



