JOURNAl. OF CONCHOI.OGY, VOL. I4, NO. 3, JULY, I913. 



III. — Species with a more Southerly Range. 

 Helicella candidula Studer Frequent 



Helix nevioralis L. Abundant. 



Ena monidua Urap. Two specimens. 



Clausilia parvula Stud. One specimen. 



B. — Marsh-Land Species. 



{a) Fresh-water Marsh. 



Zonitoides nitidus Miiller Frequent. 



Succinea elegans Risso Abundant. 



S. oblonga Drap. Two specimens. 



Limticea trnncatula Miiller Plentiful. 



{h) Salt Marsh. 



Paludestrina deani sp. nov. Very abundant. 



Cardiuvi ediile L. Plentiful. 



C. — Fresh-water Species. 

 Among these the shallow-water species predominate. For instance 

 we have no less than six species of the genus Planorbis and with them 

 Bithynia tentaculata which is by far the most abundant of the fresh- 

 water shells obtained from the deposit. It is worthy of note that the 

 Pisidia are exceedmgly scarce. 



Liinncea auricularia L. 



Z. pereger Miiller 



L. palustris Miiller 



L. stagnalis L. 



Planorbis albus Miiller 



P. glaber Jeff. 



P. crista L. 



P. carinatus Miiller 



P. lortex L. 



P. spirorbis Miiller 



Physa fontinalis L. 



Aplecta hypnorum L. 



Bithynia tentaculata Miiller 

 Valvata piscinalis Miiller 

 V. macrostoma Steenbuch 

 V. cristata Miiller 

 Unio littoralis Lamarck 



SphcBriuni corneuni L. 



Pisidium amnicuni Miiller 



P. henslowanuvi Sheppard 



P. pusillum Gmelin 



P. personation Malm 



P. casertaniim Poli 



Somewhat scarce. 



Scarce. 



Plentiful. 



Many fragments. 



Scarce. 



Frequent. 



Plentiful. 



Plentiful. 



Scarce. 



Very abundant. 



One half-grown shell. 



Fragments only. 



Very abundant. 



Abundant. 



One specimen. 



Plentiful. 



Plentiful. 



Scarce. 



Scarce. 



Very scarce. 



Scarce. 



Scarce. 



Scarce. 



