196 SOME DORSET LAND SHELLS. 



of Marnhull ; pink-lipped forms with the preceding B.F. also 

 (12) 3 (45) from Stour Row. 



5. Variations in Colour of Banding. 



Var. fascialba. This interesting form has been recently 

 described by Mr. J. W. Taylor (see Monograph III., 486) 

 from a single example found some years ago near Bristol. It 

 is " characterized by the presence of a white and calcined 

 supra-peripheral zone, upon which the third band of the 

 pentataeniate formula is placed." We have three specimens 

 taken from a hedge at Stour Row (2 adult, one immature), 

 flesh-coloured shells with B.F. 00300. 



Var. rufozonata, shell yellow with red broAvn bands. Stour 

 Row. 



Var. arenicola, shell pale yellow with translucent unpig- 

 mented bands, Stour Row ; sub-var. lurida, with band partially 

 pigmented, also from Stour Row. 



6. Variations in colour of lip and peristcme. 



Var. roseolabiata. Aperture pink or rose colour. Stour 

 Row, frequent. 



Var. violaceolabiata. Shell with purple or lilac lip. We 

 have forms with bright lilac, others with deep purple lip, 

 all taken at Stour Row. It is a very beautiful variety, but 

 the violet tint is fugitive, and after a short time the shells 

 resemble either var. roseolabiata or var. fuscolabiata, according 

 to the intensity of the original coloration. 



Var. fuscolabris. Aperture brown, Stour Row, including 

 var. incarnata with violaceous peristome ( = sub-var. 

 sauveuri), a beautiful form which is also represented in the 

 Museum collection by specimens collected by Mr. C. P. Hurst 

 at Great Bedwyn, Wilts. 



Var. nigrolabiata. Shell with black lip. A single specimen 

 from Stour Row. Apparently dark violet-lipped forms are 

 only one stage removed from this variety. It is a very 

 rare form ; hitherto only recorded from Ratham, near 

 Chichester. 



Var. bimarginata. Shell with coloured outer lip, bordered 

 internally by a white rib. Stour Row. This is another 



