HELIX. 57 



posed of short oblique streak-like spots, occasionally con- 

 fluent. Spire moderately raised, but depressed above ; 

 the apex blunt and dark brown or blackish. Whorls 

 five to five and a half, convex, moderately broad, the last 

 deep, a little flattened above, not deflected, broadly rounded 

 at the peritreme. Aperture broadly lunate, occupying 

 at least half the total diameter, nearly as high as it is 

 wide. Peristome thickened internally and more or less 

 tinged with rose-colour (pale or whitish in a variety) only 

 reflected upon the columella, where it half conceals the 

 narrow umbilicus. Base well rounded. 



Diameter about three-quarters of an inch. There are 

 usually two contiguous bands, sometimes confluent, on 

 the centre of the base, with their outer edges feathered 

 or streaked obliquely. 



The animal is large, of a yellowish-grey colour, with 

 long purplish upper tentacula and dusky lines along the 

 neck at their bases. The tail is depressed and pointed, 

 and considerably exceeds the shell. 



This is one of our local and western snails, having been 

 observed hitherto only in Cornwall, South Wales, and 

 the south-east of Ireland. It is plentiful where it occurs, 

 as at Dublin. 



H. viRGATA, Da Costa. 



Depressed, turbinate, smooth, banded ; bands not linear ; upper 

 whorls for the most part with only a single zone above the suture, 

 mouth usually livid red ; outer lip edged internally. 



Plate CX VI I. fig. 10. 



Hc'lia zonaria,var.? Penn. Brit. Zool. ed. 4, vol. iv. p. 138, pi. 85, f. 133, 

 A. probably. 

 „ cirtjata, Da Costa, Brit. Conch, p. 79, pi. 4, f. 7.— Pulteney, Hutchins, 



VOL. IV. I 



