50 MOLLUSCA OF SOMERSET. 
records it for Dorset (see Mollusca of Dorsetshire, p. 23), where 
he found it in Chamberlayne’s river, Bere Regis. 
PLANORBIS CORNEUS, Linné. 
Ponds, canals and slow running streams. Locally abundant. 
“ Very abundant in the moor ditches ; but rare, if not alto- 
gether absent, at higher levels. It delights in peaty water.” 
Norman. 
North. 
Yatton and Clevedon ; Bristol Mus. Coll. 
Common in rhines on Pennard Moor! Haslemere Mus. 
Coll. 
Weston-super-Mare ; 7. Hincks. 
Weston district ; F. A. Knight. 
Brislington ; Stoddart. 
Kenn Moor; Cundall. 
Bath Canal, very large; Kenneth McKean. 
South. 
*“ Beer Crowcombe, Taunton, three specimens,” /Wahke- 
Bowell. 
Var. albina, Moquin- Tandon. 
Clevedon and Yatton; Bristol Mus. Coll, 
Kenn Moor ; Cundall. 
Clevedon ; Misses Hele. 
Mon. scalariforme. 
One specimen from a rhine on Pennard Moor. 
PLANORBIS ALBUS, Muller. 
Locally abundant. 
North. 
“Scarce. Found in a few rhines on Kenn Moor, and 
in a pond near Wells, also at Weston-super-Mare ” ; 
Norman. 
Grosvenor, Bath ; Mrs. Oldroyd. 
Bath ; Jenyns Coll., Bath Museum. 
River Stour, Gaspar ! 
Stream at Wincanton ! 
Rejectamenta of the Brue, near Castle Cary, and of 
streams at Bratton St. Maur and Shepton Montague ! 
Weston district ; F. A. Knight. 
Shell-bearing deposit at Dumball Island; H/. Bolton. 
