Phylum: Mollusca - Class: Gastropoda

 

Family: Omalogyridae G. O. Sars, 1878

 

Ammonicera fischeriana  (Monterosato, 1869) Ammonicera rota (Forbes & Hanley, 1850) Omalogyra atomus (Philippi, 1841)
   
Omalogyra simplex  (O. G. Costa, 1861)