VITRINA. 



These beautiful little shells have been mistaken for 

 the young state of our common garden snails, and have 

 been consequently overlooked. Draparnaud has done an 

 essential service to conchology in distinguishing them, 

 and pointing out the peculiarities of their little animal 

 inhabitants, which arc considerably larger than the shells 

 themselves, and incapable of entering into them entirely; 

 they are furnished with a divided mantle which spreads 

 over and polishes the shell. They are found among moss 

 and short grass, rather preferring sandy situations, in 

 most parts of the world: one or two species are natives 

 of our country. 



Fig. 1. Vitrina pellucida, drawn from specimens found near Cork. 



2. V. Cuvieri. Helicarion Cuvieri, De Ferussac. Hist. Nat. des Mollus'^ 

 ques ferrestres et fluviatiles. 



No fossil species are known. 



