SOME DORSET LAND SHELLS. 195 



10305 ; 00345 ; 00340 ; and 00300. (It is of interest to note 

 that of the possible eighty-nine bands variations in this 

 species and its neighbour the dark-lipped hedge snail, Helix 

 nemoralis, all the possible mutations of the latter have been 

 recorded, but no less than twenty-eight of those of H. 

 Hortensis had not been observed or reported in 1911. Mr. 

 J. W. Taylor's elaborate Monograph of the L. and F. 

 Moll, of the British Isles (vol. III.) should be consulted for 

 full particulars). 



2. Variations in form of shell. 



Var. trochoidea, spire elevated. Stour Row. 



Var. depressa, shell very depressed. One specimen with 

 partially pigmented bands taken at Stour Row. 



Var. minor, B.F. 10345 ; (12)3(45), and v. olivacea, all 

 from Stour Row. 



3. Variations in Colour of shell. 

 Var. alba, sub-var. grisea, Stour Row. 



Var. lutea. Shell more or less yellow. Stour Row, the 

 series includes some minor forms. 



Var. fusca ( = baudonia). Shell fawn-coloured, with B.F. 

 10345, Marnhull and Todber. 



Var. olivacea. Shell deep olive-brown. Stour Row. 



Sub-var. hepatica, shell liver-colour. Stour Row, with 

 white and pink-lipped forms. 



Sub-var. de corti, shell greenish-black. A very rare variety, 

 of which there are at present but two British specimens, both 

 taken from a roadside hedge between Todber and Marnhull. 

 (One is figured in Taylor's Monograph, Brit. L. and F. Moll., 

 Vol. III., pi. xxviii.) 



Var. incarnata. Shell bright rose colour. Stour Row, the 

 series includes forms with white, rose, and brown peristome 

 and lip ; and the sub-var. colorata, shell somewhat fawn 

 colour with brown lip and a yellow area bordering the outside 

 of the rib. 



4. Variations in banding. 



Var. fasciata. Shell with coalesced or interrupted bands. 

 B.F. (123)(45), (12345), (123)45, all from the neighbourhood 



