96 



CATALOGUE OF 



water ; also they show greater development of the umbo. The 

 most oval examples (PL XXIV, f. 1) are from Blythburgh. 



The specimen figured by Forbes & Hanley (63, pi. xxxvii, f. 11) 

 is one of those in the British Museum Collection (1907.12.30: 

 159-61). 



DISTRIBUTION. 



si 

 01 



N3 CA 

 HB 38 



RW RE EL BF AN 

 Wl El PN AS 

 AM PM FF Kl 

 M DN SG PC KF 

 1 CT ' RF LL ED HD 



AY LA PE BW NN 

 wo ED LD AN WT KB DF SK RX SN 



FE TY AR DO CU WL NY DM 



WM SL LE MO ML MY EY 



EM RO CV LH SL WY SY LN 



WG NG LF WH ME CR DB FT CH DY NM L8 



S6 KC KD DU MN MG SP ST LR JIB WN E_N 



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



NK LK ST KK WX PB CM BR GE OX BX BJ) HT NE 



SK MC EC WA 6M MM GW NW BK MX SE 



WC NS SW NH SR WK EK 



L ND S3 DT SH WX EX 

 EC SO IW 



SC WC 



Cl 

 Pisidium liensloivanum. 



(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. H. 



Acton [J. E. C.] ; Hampstead [W. M. W.] ; Tottenham [W. M. W.]. 

 BEBKSHIRE. BK. 



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



