LIMNJEAD.E. 241 



Limneus fossarius. Turton, Man. ed. 1. 124. f. 



108. 

 Lymneus minutus. Brard, p. 138. t. 5. f. 8, 9. 

 Lymnaea minuta. Lamarck, vi. ii. p. 162. 

 Stagnicola minuta. Leach, Mollusc, p. 143. 

 Helix fossaria. Mont p. 372. t. 16. f. 9. 

 Lymnaea fossaria. Flem. 



Buccinum truncatulum. Miiller, Verm. ii. 130. 

 Limneus truncatulus. Jeffreys, Linn. Trans, xvi. 



377. 

 Bulimus truncatus. Brug. E. M. 20. 

 Limnaeus minutus. Rossm, Icon. i. 100, t. 2. f. 57. 

 Helix truncatula. Gmelin, 3659. 

 Bulimus obscurus. Pioret, Prod. 35, 

 Limnophysa minuta. Fitz. 113. 

 Var. 1. Conic-oval, less glossy brown and smooth. 



Drap. p. 53. t. 3. f. 7. 

 Monstrosity with the lower volution flattened 



at top, in the centre of which are sunk the other 



volutions. 



In marshes and ditches, on the mud. 



Animal greyish or dusky. 



Shell half an inch long, pale brown or greyish, and 

 is readily distinguished from the last by the rounded 

 and deeply divided volutions ; aperture nearly half 

 as long as the shell, the outer lip a little reflected 

 but not spread, nor glossy. 



These animals are extremely variable in size and 

 colour, according to the locality in which they are 

 found, and the abundance of their food. 



Mr. Alder observes, that a variety of a much smaller 

 size is found on the margins of rivers, and another is 

 found in mountain streams. 



M 



