76 HELICID#. 
V. I. pyramidéta (Colb.). Spire more raised. 
V. II. rubéscens (Aog.). Reddish. 
V. Ill. géloprovincidlis (Dup.). Last whorl less 
depressed, striz more regular and finer ; wdéz/icus none. 
V. IV. dlbocincta (Cki.). Colour absent along the 
periphery. 
V. V. dlbida (Taylor). White. 
M. stnestrorsum (Taylor). Reversed. 
15. H. CARTUSIANA (aftera Carthusian monastery), Miiller. 
mele a, fea 
Depressed, globose, semi-transparent, slightly glossy, whitish, 
tinted with brown except round the circumference of the shell, where 
the white ground colour usually forms arcincture ; zw/or/s 6-7 3 mouth 
with white internal rib ; ze#zbzdecaes almost hidden by the reflexion of 
the outer lip. A. 7mm. B. 124mm. 
The British localities for this species are the downs of 
Kent and Sussex ; and in Norfolk, on the chalk near 
Long Stratton, I took a single dead specimen in 1890. 
It is also said to have been found in Surrey, Yorkshire 
y; ) 
Somerset, Bucks., Essex, and Glamorgan. 
I have noticed that specimens from the sand-hills at 
Sandwich are very much darker and more transparent 
than those I have taken from a chalk-hill near Lewes 
and from the chalk downs of Dover. On the sand-hills 
at Sandwich the shell feeds on the Hound’s Tongue 
