360 GAIN : FOOD OF SOME OF tHE BRITISH MOLLtJSKS. 



B. — The white portion only eaten, except by Avion ater, which ate the whole. 



c. — In confinement these slugs eat the slime off each other and with it portions of the skin. 



Helix arbustorum van canigonensis Boubee. — The 

 shells of this species which I formerly considered to be the van 

 repelliin on further examination and study induce me to think 

 would be more correctly referred to var. canigonensis Boubee. 

 1 he most peculiar feature of this van is that it is entirely desti- 

 tute of the beautiful and characteristic marblings which form so 

 striking a feature in the normal form, the shells being uniformly 

 coloured but marked with the usual peripheral band, and thus 

 bearing great resemblance to some of the members of the South 

 European genus Campylsea. This variety has been found at 

 Bishopthorpe, near York, by Mn J. E. Morland ; at Bell Busk, 

 Yorkshire, by Mn Madison ; and at Clitheroe, in Lancashire, 

 by Mn R. Wigglesworth, and received its name from its first- 

 noticed occurrence being at St. Martin du Canigou in the 

 Pyrenees. — J. W. Taylor, April 25-//?, i8gi. 



J.C, vi., July, 1891. 



