318 ADAMS: INTERESTING KENTISH FORMS. 
H. arbustorum. ‘This species is particularly fine in Kent, 
and especially so in the neighbourhood of Dover. At Ewell 
I paid my periodic visit to the colony of var. canigonensis 
(the only one I know of), and took several specimens. 
H. cantiana. This species is well named—in no other county 
does it attain such a size or such deep colouring. I took 
several pure white forms where I had never seen them before. 
H. cartusiana seems to be extending its area, and in some 
places it is certainly more abundant than I have ever known 
it before. It now occurs from the S. Foreland interruptedly 
to Hythe. At Patrixbourne there isa colony of the smallest 
forms of var. minor I know; they average 74 mm., and 
there are no full-sized onesamong them. At Sandwich the 
shells on the sandhills matured a fortnight later than those 
on the East Cliff by Dover. These Sandwich shells are 
very much darker and thinner than those found on the 
chalk, indeed, so much so, and so universally, that on the 
Continent they would have a varietal name; var. avenicola 
would be as appropriate in this case as it is not when 
applied to H. hortensts. 
H. caperata was extremely scarce this year, in fact I only 
came across one specimen. 
H. virgata. The largest British forms have long been known 
to come from Kent, but this year the conditions must have 
been particularly favourable, a stubble field near Lydden 
being covered with monsters. Some I have measure 20 
mm. in diameter. I have noticed that the a/bicans form is 
almost invariably smaller than the type found with it, and 
in this case the largest measures 164 mm. in diameter. In 
a single pasture field at Patrixbourne my genial host and I 
spent one of the hottest mornings I have ever known in 
England, engaged in filling our tins with the following 
varieties :—/eucozona, lutescens, maculata, radiata, hypozona, 
and a new form banded and marked above the periphery, 
J.C., viii., Oct. 1896 
