188 



PROCEEDINGS OF THE MALACOLOGICAL SOCIEir. 



Figs. 



Figs. 



EXPLANATION OF PLATES IV AND V. 

 Plate IV. 



1-3. Sulcobasis concisa rubra (Albers). From the type in the Zurich 



Museum. 

 4-6. 



7-9. 



10-12. 



1-3. 



4-6. 



7-9. 



10-12. 



From a specimen in the 



British Museum. 

 From a specimen in the 



Senckenberg Museum. 

 From a specimen in the 



Berlin Museum. 



Plate V. 



Sulcobasis concisa concisa (Fer.). From a specimen in the 



British Museum. 

 ,, ,, ,, ,, From a specimen in the 



Bremen Museum. 

 ,, ,, cuvmigi (Gude). From a cotype in the British 



Museum. 

 ,, ,, ,, ,, From a specimen in the 



Berhn Museum. 



