52 JOURNAL OF CONCHOLOGY. 



LIST OF THE 

 LAND AND FRESHWATER SHELLS OF CARDIFF. 



By F. W. WOTTON, M.C.S. 



I append a list of the terrestrial and aquatic moUusca 

 which I have taken in this district during the past six or seven 

 years. It will be seen that Vertigo and Pupa are very 

 poorly represented, but I have every reason to believe other 

 species exist here, only I have not been fortunate enough to 

 find them. 

 Sphaerium corneum. — Ditches on Leckwith Common. 



Scarce ; shell small and rather globose. 

 S. iacustre.- — Leckwith, E.ist Moors, &c. Not uncommon. 



East Moor specimens are unusually large. 

 Pisidium amnicum. — River Taff and Feeder. Scarce. 

 P. fontinale. — Penylan Quarry. Rare; specimens beautifully 



clear. 

 P. pusillum.— Common all round the district; those which 



occur on the East Moors are covered with a thick, dark- 

 brown incrustation. 

 Anodonta cygnea. — Rivers Taff and Ely. Not common. 

 Bythinia tentaculata. — Common and general. 

 B. tentaculata var. albida. — East Moors and Feeder. 

 B. tentaculata var. ventricosa. — Feeder. Rare; I have 



taken a banded variety of this species in the Feeder. 

 Valvata piscinalis. — River Taff, Feeder, &c. Not common. 

 V. piscinalis var. depressa. — Feeder. Rare. 

 V. cristata.— Taff, Feeder, &c. Local and not common. 

 Planorbis lineatus. — Feeder. Two specimens only in 1884. 

 P. nitidus. — Common in ditches at Leckwith ; very rare in 



Feeder. 

 P. nautileus. — Very abundant in Feeder, &c. 

 P. nautileus var. crista. — With type. Scarce. 



J.C, v., April, 1SS6. 



