SPECIES OF risinirxr. 103 



DISTRIBUTION. 



31 

 Oi 



NS CA 

 HB SS 



RW RE EL BF AN 



Wl El PN AS 



AM PM FF Kl 



DN SG PC KF 



' CT E RF LL ED HD 



AY LA PE BW NN 



WD ED LD AN WT KB OF SK RX 8N 



FE TY AR DO CU WL NY DM 

 WM SL LE MO ML MY EY 



EM RO CV LH SL WY SY IN 



WG NG LF WH ME CR DB FT CH DY NM LS 



86 KG KD DU MN MG SP ST LR CJ WN EN 



CL NT QC CW Wl CD RA HF WO WW NO HU WS ES 



NK LK ST KK WX PB CM BR G E OX jTX BD HT NE 



SK MC EC WA GM MM GW NW BK MX SJ 



WC NS SW NH Sjd-WK E_K 



ND S3 DT SH WX EX 



EC SD W 



SC WC 



Cl 

 Pisidium supimim. 



(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. E. 



Battersea [Gray Coll. : B.M. 1906. G. 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.] ; Kclsall [C. 0.] [B.M. 1909. 5. 27 : 



18-19]. 



