Mollusks. 4023 



Zonites rotundatus. Common. 



„ „ var. alba. Killiney. 



„ pygmaeus. Little-river marsh, Killiney. 

 „ cellarius. Common. 

 „ purus. Rare, Killiney. 



„ radiatulus. Rare ; in a shady wood near Loughlinstown. 

 „ crystallinus. In a damp meadow near Killiney. 

 Succinea putris. Common. 



„ PfeifFeri. Killiney. 

 Bulimus obscurus. Rare ; on trees near Cherry-wood, and in an 

 old wall near Loughlinstown. 



„ acutus. Abundant along the sea-coast. 

 „ „ vars. b, c, and d of Turton found at Killiney. 



Zua lubrica. In moss, Little-river marsh, Killiney, and elsewhere. 

 Pupa umbilicata. Common. 



„ Anglica. Rare ; Little-river marsh, Killiney, and Loughlins- 

 town. 



„ marginata. Rare ; in an old wall near Loughlinstown. 

 Vertigo edentula. On the fronds of ferns in a shady situation, Kil- 

 liney. 



„ pygmsea. Rare ; under limestone boulders, Loughlinstown. 

 „ substriata. Very rare ; Little-river marsh, at the roots of 

 rushes, &c. 



„ palustris. Rare ; same locality as the last species. 

 Balea perversa. Scarce ; on beech-trees, Killiney. 

 Clausilia nigricans. Common. 



Carychium minimum. Common in damp situations. 

 Limnaeus pereger. Very common. 

 „ auricularius. Not common. 

 „ stagnalis. Pond at Portobello. 

 „ truncatulus. Rare ; Killiney. 

 Amphiplea glutinosa. Rare ; Loughlinstown. 

 Ancylus fluviatilis. Shangannagh river. 

 Physa fontinalis. In a stream at Fox-rock, and at Killiney. 

 Aplexus hypnorum. Loughlinstown, and Little-river marsh, Kil- 

 liney. 



Planorbis carinatus. Pond at Portobello, near Dublin. 

 „ marginatus. Loughlinstown. 

 „ contortus. Rare ; Loughlinstown. 

 „ vortex. Common. 



