STECIKS OF risiiunr. 37 



DISTRIBUTION. 



si 

 01 



N3 CA 

 HB 



$ RW RE EL BF All 



Wl El PN AS 



M AM PM FF Kl 



DN SO PC KF 



CT RF LL ED HO 



AY LA PE BW NN 



WO ED LD AN WT KB OF SK RX SN 



FE TV AR 00 CU WL NY ON 



I M 

 WM SL LE MO Ml MY EY 



EM RO CV LH SL WY SY LN 



WO NO LF WH ME CR DB FT CH DY NM LS 



S6 KG K_ DU MN MQ SP ST LR CB WN EN 



Cl NT QC CW Wl CD RA HF WO WW NO HU W8 E3 



NK L_K ST KK WX PB CM BR 6E OX JMf RO HT 



SK MC EC WA GM MM GW NW BK MX S 



WC NS SW NH Sjlf'WK EK 



NO SS DT SH WX EX 



EC SO IW 



SC WC 



Cl 



Pisidium casertanum. 



(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. It. 



Barnes Common [B. B. \V.] ; Blackheath [B.M. 98.5.20: 



22517-35 pars] ; East Finchley [J. E. C.] ; Hendon [J. E. C.] ; 



North End [B. B. W.]. 

 BEKKSHIRE. BK. 



Cothill [H. C. N.] ; Wendover Canal [C. 0.]. 

 BUCKINGHAMSHIRE. BX. 



Denham [J. E. C.] ; Weston Turville [J. E. C.]. 



