SPECIES OK pismior. 103 



DISTRIBUTION. 



31 

 01 



Cl 

 Pisidium supimini. 



(Recent occurrences are shown in red: fossil occurrences by a line 

 below the symbols. For the explanation of the symbols see p. 20.) 



RECENT. 

 LONDON. H. 



Battersea [Gray Coll. : B.M. 1906. 6. 18 : 6-9]. 

 BERKSHIRE. BK. 



Eton (R. Thames) [J. E. C.]. 

 BUCKINGHAMSHIRE. BX. 



Eton (R. Thames) [J. E. C.] ; Iver [J. E. C.] ; Marsworth Canal 



[C. 0.]. 



CAMBRIDGESHIRE. CB. [Gray Coll. : B.M. 1912.12.5: 48.] 

 CHESHIRE. CH. 



Budworth Mere [A. S. K.] ; Kelsall [C. 0.] [B.M. 1909. 5. 27 : 



18-19]. 



