JoLiTTial de ConcKyliolodie . 1881 



lyuolodi 



PL. XI 



1^ 



Jlrnaal del. 



Jnw. ^^f^uct, J^aris. 



1. Helix alveolus , Gassies . 



2. Bialimii-S fitratus, Mar-hm, smist. 



J. BiallTTlUS fibrains , Marijn.moTist. 

 4'. B Beteaiixi, Gassies . 



