INLAND MOLLUSCA OF SOMERSET. 141 



Z. nitidulus, Draparnaud. In simllar situations to the 

 last, and llke it very common among decaying beech leaves. 



Z. piirus, Alder. Local. Among rotting leaves at the 

 foot of Elton Hill, Clevedon, at Wriagton, near Wells, 

 and in Brockley Coombe. 



Z. radiatulus, Alder. At roots of stunted grass growing 

 in tlie crevices of limestone rocks on Elton Hill, and in 

 similai' situations on the eastern scarp of Clevedon Hill. — 

 A. M. N. Clifton.— Mr. W. Webster. 



Z. nitidus, IMüller. Damp situations. Under stones on 

 the grass in Kenn and Portishead Moors ; rare. — A. M. N. 

 Weston-super-Mare. — Rev. W. K. Crotch. 



Z. crystallinusj Müller. Helix crystallina, Müller, Hist. 

 Yerm., pt. 2, p. 23. Frequent and widely distributed 

 among decaying leaves, and under stones lying upon 

 grass. 



Genus Helix. Linnajus. 



H. aspersa, Müller. Only too abundant. We have 

 taken a reversed specimen at Clevedon ; and also examples 

 upon the clifFs towards Ladies"" Bay which have the spire 

 produced, so that the shell assumes the form of Paludina 

 vivipara, Linn. 



H. pomatia, Linnasus. Eare at Stapleton. — Miller. 

 Probably introduced, and now apparently extinct. 



H. arbustorum, Linnasus. Frequent, though local. We 

 have taken it in the lane leading from Clevedon to Clap- 

 ton ; under heaps of stones on Strawberry Hill, Clevedon ; 

 upon the banks of the canal at Bath ; among nettles at 

 Cheddar ClifFs ; and hedge-banks near Axbridge. 



H. Cantiana, Montagu. Brislington is the only locality 

 in Somersetshire in which we know this shell to occur. 

 It was first taken therc by Mr. Miller. 



