298 JOURNAL OF CONCHOLOGY, VOL. 16, NO. 9, JUNE, I922. 



I also took a specimen which at first I considered might be merely 

 a sport, but the subsequent capture of several specimens by Mr. H. 

 Beeston has shown it to be a distinct variety. Its remarkable 

 feature, the total absence of any peripheral keeling, causes it to bear 

 a superficial resemblance to H. striolata. 



var. ecarinata nov. — Whorls rounded, with no trace of keeling; 

 peripheral band usually missing or faint. 



In colour the Devonshire H. livibata varies (excluding the white 

 variety) from deep bronze to pinkish or yellowish-white, almost always 

 with a paler peripheral band and a violet or pinkish peristome. 

 Described varieties : — 



var. typica Germain. — "Shell yellowish, with a whitish peripheral 

 band. Interior of mouth whitish ; peristome white." Very scarce 

 in Devon. Mr. Kennard has taken a few examples. 



var. sarratina Moquin-Tandon. — " Shell of a more or less deep 

 reddish fawn." To this variety at least ninety per cent, of the Devon- 

 shire specimens belong. 



var. ferussina Moquin-Tandon. — " Shell yellowish-white, with 

 a reddish zone surrounding the white zone both above and below." 

 Scarce in Devon ; in some specimens the reddish zone on reaching 

 the mouth of the shell expands right across the whorl for a short 

 distance. 



var. brunnea Gassies. — " Brownish, almost opaque horn- 

 colour, with the white band sharply defined." Common. 



var. unicolor Germain. — Shell shining reddish-fawn, without 

 the peripheral band." Mr. Kennard has taken one or two examples. 



var. albina Moquin-Tandon. — " Shell whitish." Not uncom- 

 mon, in this variety the whole shell is glistening transparent white 

 with the peripheral band colourless and translucent. The animal is 

 milk-white, but is scarcely a true albino, as it has the eyes bluish- 

 grey, and occasionally a faint bluish streak in the dorsal area. I also 

 took a few examples with a normally coloured animal in an albino 

 shell, as occasionally occurs in Hyalinia cellaria. 



Kennard and Woodward point out that the Devon shell agrees 

 with the descriptions of the Southern French race, but that examples 

 thence hardly agree with our shell by reason of their more pronounced 

 peripheral band and lighter colour. They suggest, however, that 

 these differences may be due to the nature of the soil. I think this 

 to be undoubtedly the case. H. striolata, Helicella caperata. Helix 

 aspersa, and all the species of Hyalinia found in the same locality 

 are darker and redder in ground colour than in any other locality 

 where I have collected ; so a similar variation should be expected in 



