Sl'KLKOX : l.ANl) AM) FUESHWA IKR MOLI.USCA FKOM lOOTtNO. 



293 



way. Ilavin;^ ncgulialctl ihc ruilwuy, I found myself in a fairly !ai;;e field, 

 inlersected by several large and many small dilclies, and hounded on ihc east by 

 ihe River Wandle. There were also Iwo ponds abulling the railway, rectangular 

 in shape, and very artificial looking. I at first thougiit that all these water-courses, 

 etc., must have had some connection with the abljey, but I have no proof of this. 

 On reaching this field, I soon found that my afternoon was not to be wasted, as 

 my first scoopful brought up Planorbis corneus and Bylhinia leachii. I subsc- 

 cpiently visited the locality on several occasions, both alone and in company with 

 my friend Mr. C. P. Harrington ; and as this spot is bound to be built on in the 

 next few years, I think it wise to publish a complete list of the species which I 

 have taken there. 



I.iinax arboniin. 

 Agrioliinax agrcslis. 

 A. liFvis. 



Vitrina pcllticida. 



Vitrea crystallina. 



V. cellaria. 



V. alliaria. 



V. rogcrsi. 



V. iiilidtila. 

 Zoniloides nitidus. 

 Arion ater. 

 A. sub fuse U.S. 

 A. intenncdius. 

 A. hortensis. 

 A. fasciatns. 

 Pyramidula rotundata. 

 Helicella cant i ana. 

 Hygroinia liispida, 



var. hispidosa. 

 H. rnfescens. 



Vallonia cxcentrua. 

 Helkigona arbusloritin . 

 Helix asfiersa. 

 II. ncincralis. 



Suciiuira elegans vur. pfeijjeri. 



Carychinm viinimuin. 



LimUiTa pcreger. 



L. paluslris. 



L. trtmcaliila. 



/.. sla^nalts. 



Planorbis corneus. 



P. albus. 



P. uinbilicatus. 



P. vorlex. 



P. spirorbis. 



P. contortus. 



P. /on/anus. 



Physa fontinalis. 



Aplecta hypnoruin. 



Bylhinia lentaculala. 



B. leachii. 



Valvala piscinalis. 



V. cristata. 



Neritina Jltiviatilis. 



Sphceriurn corneum. 



Pisiditiin subtrimcatum. 



P. pus ilium. 



P. obtusale. 



P. "assicsianuiii. 



Cochlicopa lubrica. 



Succinea piitrisl (young specimens) 



All the aljove species were found still living, with tlie exception of Helicigona 

 arbustoruiii, Planorbis fonlanus, and Neritina fluviatilis. The specimens of these 

 species taken may liave come from the deposits along the bank of the Wandle ; 

 but I feel sure that further search would reveal living sjjecimens at least of 

 PI. arbustoruin. With the exception of Vitrea nilidula, V. crystallina, Vallonia 

 excentrica, Planorbis spiroibis, and Aplecta hypnoruin, all the species in the above 

 list are abundant. — A. W. '6 \VA.vc^\ (Read be/ore the Society, Q)c\.. I7lh, 1908). 



