INDEX. 



289 



Trees, molluscs living under the 



bark and in hollows of, 132, 



169, 173. 

 eating into the wood of, 133, 



170. 

 And see Timber. 

 Trent Valley, Mr. Musson on the 



abundance of shells in, 31. 

 Tristram, H. B., snail's eggs found 



on the foot of a bird by, 47, 



157- 



on colonization in co. Durham, 



I93> 254. 

 Trochomorpha, distribution of, 90. 

 Troughs, shells in, 20. 

 Trout, a LimncBa transplanted as 



food for, 184. 

 Turtle, mussel carried by, ^iT,. 



pond -snails adhering to, 88. 

 Turton, Dr., on shells amongst 



leaves, 146. 

 on Bulinms goodallii, B. decol- 



latus and Helix pomatia in 



Britain, 230, 238, 260. 

 Tweedie, F., on the finding of a 



bird's claw between the 



valves of a mussel, 77. 

 Tye, G. S., on Dreissena poly- 



morpha in water-pipes, 19. 

 on Helix pisana in Guernsey, 



190. 

 Typhoons, 131, 149- 



Umbelliferous plants, molluscs 



in the kexes of, 139, 171. 

 Unio or Anodonta, clinging to a 

 sandpiper, 79. 

 to a heron, 80. 

 to a duck, 80. 

 Unio^ tenacity of life of, 28. 



living among tree-roots, 37. 

 dispersal of fry of, 48. 

 clinging by closure, 57, 58. 

 ducklings caught by, 77. 

 Unio complanatus carried by a teal, 

 80. 

 by a turtle, 83. 



U, margaritifer, dragged to shore 

 upon rods, 57, 58. 

 Ancyhis adhering to, 88. 

 Unionida:, dispersal of, by floods, 



.33- 

 dispersal of fry of, 48- 



tJnited States, snails imported into, 

 as articles of food, 203. 



United States National Museum, 

 slug found in a bunch of 

 bananas received by, 207. 



Univalves, dispersal of, while cling- 

 ing by closure of the opercu- 

 lum, '85, 165. 

 And see Molluscs. 



Upton, attempted colonization of 

 Helix hortensis at, 194. 



Vernedi, Mr,, on tenacity of life 



in the desert-snail, 103. 

 Veronicella, found among bananas, 



207. 

 Vertigo edentula, in kexes, 140. 



amongst leaves, 147. 

 V. 7?iilium,\Ye.\gh.t of, 147. 

 V. pygvura, colonies of, 94. 

 Victoria, dust whirlwinds of, 149. 



introduced slugs in, 180. 

 Virginia, Helix nemoralis in, 180, 



193- 



Vitality, suspended. See Tenacity 



of life. 

 Vitrina {Helicarion) carried by a 



beetle, 155. 

 Vole, trapped by a mussel, St,. 

 Voluntary migration, 4, 26, 116, 



144. 



W. 



Wagtails, earth on the feet of, 



159- 



Walken, J., Nepa with a bivalve 

 attached caught by, 62. 



Wallace, A. R., on the general per- 

 manence of oceans, i, 118. 

 U 



