Il8 MISCELLANEOUS NOTES. 



threatening my colony. An unusually stormy winter — the partially 

 subsided cliff completes its descent — and all is over. 



From information kindly furnished me by Mr. G. S. Tye, I 

 learn that at Tenby where this variety occurs in considerable 

 numbers, there is no appearance of centralisation, but the 

 individuals are to be found scattered among those of typical form 

 like the men of colour in the Northern States. I can suggest no 

 reason for this difference, but merely point it out. 



NOTE ON BULIMUS DETRITUS. 



By PHILIP B. MASON, F.L.S. 



More than a dozen specimens of Bidimus detritus Mtill. were 

 brought to me a short time ago as having been taken from a 

 rockery in a garden in this neighbourhood, where they were 

 living among a number of dead littoral shells gathered at 

 Scarborough; and it was said that the owner of this garden was 

 certain that they had been brought among them. Most of these 

 were living and they were in various stages of growth. However, 

 I think I cleared up the mystery when I ascertained that a 

 quantity of light barley and other seeds which had been screened 

 out of some samples of barley intended for malting purposes had 

 been brought into the garden for the purpose of feeding poultry. 

 I have since procured a specimen of screenings in which were 

 living specimens of Helix caperata. 



