102 NEW AND RAKE DORSET LAND SHELLS. 



under a heap of stones in a field, where I turned up about thirty 

 individuals. 



Besides these I have taken at Bloxworth Rectory Balia perversa, 

 on a rubble wall of an outhouse facing north, and Clausilia laminata 

 under logs, together with one or two specimens of the variety albida, 

 which is a very beautiful object. 



At the beginning of September, 1890, I found one specimen of 

 Acme lineata, which has never yet been recorded as taken in 

 Dorset. It was under a tuft of grass in a marsh at Bloxworth, and 

 I have been unable to find another, though, owing to the red colour 

 of the mud, exactly resembling the shell, it might easily be over- 

 looked. It is not usually a gregarious shell, and Mr. J. W. 

 "Williams in his " Shell Collector's Hand-book," gives as its habitat 

 " among decaying leaves and moss in damp situations." It is very 

 local and is never found anywhere in abundance. 



I append a list of land and fresh-water shells which I have myself 

 taken in this county during the short time in which I have been 

 collecting : 



Sphaerium corneuni, Bere Regis. 



lacustre, Aimer ; Weymouth. 

 rivicola, Morden. 



Pisidium amnicum, one or two specimens Bere Regis. 

 fontinale, Bloxworth. 

 pusillum, Bloxworth. 

 nitidum, one or two specimens Bere Regis. 

 roseum, ditto Bloxworth. 



Unio pictorum, Morden. 

 Anodonta cygnea, Morden. 

 Neritina fluviatilis, Bere Regis. 



Bythinia tentaculata, Bere Regis ; Morden ; Weymouth. 

 Valvata piscinalis, Bere Regis ; Morden ; Weymouth ; Winter- 

 bourne Zelston. 



cristata, one specimen, Morden. 

 Hydrobia ventrosa, Lodmoor, Weymouth. 

 Planorbis nautileus, Bloxworth ; Weymouth. 



