LAND SHELLS: THEIR TENACITY OF LIFE. 1X3 



where they Hved for eight months, when they ... all 

 died within a few days of each other." ^ 



BULIMUS EREMITA. — A Specimen of this snail, from 

 Turkestan, said to have been kept dry for two and a 

 half years, revived and ate, but died after three or four 

 days.^ 



Pupa tridens and Clausilia rugosa. — Some 

 snails, apparently belonging to these species, collected 

 in France and close-packed in a pill-box by Mr. John 

 Curtis in July, 1830, and subsequently kept in a dry 

 place without food for nine months, on being placed 

 on wet moss v/ere seen to revive within twenty-four 

 hours. •'^ 



Operculate snails. — The Cyclostomas, according 

 to a statement in Woodward's '' Manual," ^ are well 

 known to be able to survive imprisonments of many 

 months. Some foreign species, procured by Mr. 

 Pickering from a dealer, and kept by him for some 

 weeks, are said to have revived in v.ater.^ Numerous 

 examples of C. articulatum, collected in February, 1858, 

 by Madame Ida Pfeiffer, in the Island of Rodriguez, 

 and conveyed from thence to Mauritius, continued 

 active, without taking food, during a stay there of two 



1 Lyell, "Principles,'' ii. (1875), p. 377; P. P. King, "Zoological 

 Journal," v. (1835), p. 342. 



'^ Goldfuss, as quoted in the "Zoological Record," xxi. (1884), 

 Moll., p. 19. 



^ J. Curtis, "Trans. Lin. Soc," xvi. (1833), 766-7. 



'^ Ed. 4, rep. 1890, p. 14. 



^ S. P. Woodward, "Ann. and Mag. Nat. Hist.," (2), vi. (1850), 

 489-90, 



I 



