09. 
80. 
81. 
THE MOLLUSCA OF DORSETSHIRE. 23 
AMPHIPEPLEA, Willsson, 1822. 
A. glutinosa (Jil/.) Limnea glutinosus, J“ill. 
Ponds and water-courses ; rare. 
Mantle very expanded, with which the animal when in the 
water nearly envelopes its shell, but withdraws it when 
touched. 
Chamberlaynes river, Bere Regis, J. C. M.-P. 
PLANORBIS, Guettard, 1756. 
P. nitidus, Miller. Helix fontana, Mont. 
Pulteney, p. 53, pl. 19, f. 19. 
Mont. Test. Brit., Vol. ii., p. 462, pl. 6, f. 6. 
Ponds, marshes, stagnant water. 
Wareham, ditches, Montagu ; Stoborough Meadows, J. C. J.-P. 
Chamberlaynes river, Bere Regis, water-courses, J. C. M.-P. 
Morden Park Lake, J. C. IL-P. 
P. contortus, (L.) 
Purbeck Papers, Vol. ii., p. 47. 
On water plants in marshes, slow rivers, lakes. 
Weymouth, Damon. 
Wool, Bindon Meadows, Kendall. 
Wareham, Stoborough Meadows, and river, J. C. J.-P. 
Chamberlaynes, Bere Regis, rare, J. C. M.-P. 
Sturminster Newton, near Liddon, J. C. AL.-P. 
Fossil : Blashenwell Quaternary tufaceous deposit, J. C. M.-P. 
2. P. nautileus (Z.) Turbo nautileus, (Z.) 
Pulteney, p. 50, pl. 19, f. 16. 
Robinson’s Isle of Purbeck, p. 178. 
Water-plants in marshes, lakes, ponds, slow rivers. 
Wareham, water-courses, Stoborough Meadows, J. C, AL.-P. 
Swanage, Newton Manor, &. W. Soden Smith; Encombe, 
Chapman’s Pool, J. C. 1.-P. 
Lulworth Castle, pond at South Lodge-gate, Damon; Wey- 
mouth, Daniel. 
Sturminster Marshall, water-courses, J, C. J.-P. 
