SPECIES OF PISIDITJlf. 



The specimens in the Hanley Collection (B.M. 1907. 12. 30 : 

 512-515) labelled "P.^twi/Zum, British," proved to be P. person- 

 atum, and judging from the figure may have been utilized by 

 Forbes and Hanley for their illustration (63, pi. xxxvii, f. 10). 



DISTRIBUTION. 



si 



01 



Cl 



Pisidium 



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

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



RECENT. 



ENGLAND. 



LONDON". !L 



Acton Green [C. S.] ; Barnes [J. E. C.] ; Baling [W. M. W.]. 

 BF.KKSHIRE. BK. 



('..thill [H. C. X.]; Wendover Canal [C. O.]. 



