144 



man), London (Grey), River Wavene}*, near Shotford 

 Bridge, Northamptonshire (Bloxam), Hartwell Park, 

 Buckinghamshire (Lowndes), River Ej'tbrope, Stone, 

 Bucks. (Reade), Darlington (Graham), Newcastle 

 (Alder), &c. South of Scotland (Forbes), Ireland, local 

 (Thompson), Dublin (Brown). 



On the continent, in France (Draparnaud), Germany 

 (Pfeiffer), River Danube (Grey), Sweden (Nilson), I. of 

 Corsica (Payradeau). , 



LIMN.EUS TRUNCATULUs [The Ditch Mud Shell]. 



Miiller. 



Figure 106. 



This interesting and pretty shell is very varied in 

 form, so much so as to be formerly recognized as dif- 

 ferent species. It is the same species as the L. minutus 

 of Draparnaud, Lamark, Nilson, Pfeifl'er, &c., and the 

 L. fossai'ius of Turton. 



The shell is of a lengthened conical form, thin, shin- 

 ing, somewhat smooth, not brittle; apex small, pointed; 

 mouth ovate, oblong, and capacious. Horn-coloured, 

 or paler. It has six deeply-divided convolutions. 



Length half an inch ; breadth three lines. 



The colour of the animal is brown, or leaden. 



A common and widely-distributed species. 



This shell was described by Montagu, in the year 

 1803, in the " British Testacea." 



Inhabits stagnant water and marshes; mostly found 

 crawling on the wet mud in the immediate vicinity of 

 water. It is evenfound high up on mountains in 

 marshy places. 



