HELIX HORTENSIS. 339 
The formule 12305, 103(45), 023(45) are rare in the British Isles, but 
are also German; 120(45) is also very searce in this country, though 
known to exist in Germany and North America; and 12340, though 
almost unique in English records, is cited from Germany, France, and 
North America ; while 02345, a much commoner form in this country, is 
only on record from Germany, France, and Switzerland. 
As far as at present ‘known, (12)0(45), 0(23)(45), and (12)045 are 
exclusively British, the latter having only been met with by Mr. C. H. 
Morris near Lewes, as the early record by Prof. Cockerell probably referred 
to the same specimens, while 0(2345), (12)305, and 1(23)05 are only reported 
from Germany and have never been met with in the British Isles. 
No less than fourteen formulee—(1234)0, (123)40, (12)(34)0, (12)340, 
1(234)0, 1(23)40, 12(34)0, (123)05, 10(345), 10(34)5, 0(234)5, 0(23)45, 
02(345), and 02(34)5—are as yet totally unknown to science. 
The three-banded section contains many rare or unknown band 
formule, being scarcely inferior in this respect to the tetrafasciate group. 
‘There are twenty-five varieties : 
12300 
(1 2)005 
0(234)0 
02305 
(123)00 1eOs3"055 0(2 3) 40 0(23)05 
(12)300 103840 02(34)0 02045 
1(23)00 10(34)0 00345 020(4 5) 
12040 10045 00(3 45) 
(12)040 100(45) 00(84)5 
2 0.0'5 02340 003(45) 
The commonest ot the section in this country are 10045 and 00345, 
which are also found in Germany and France, the latter variety being on 
record for Switzerland and Livland also; the formula 10305, though not 
so common in this country, has been quoted from Germany, France, 
Belgium, Switzerland, and Norway ; 12300, though scarce in England, is 
known from Germany, France, and North America; 003(45) is found in 
Germany and France, but is only reported from this country by Mr. C. D. 
Heginbotham and Mr. Swanton; 100(45) is quite scarce, being reported 
only by Mr. J. F. Musham and Mr. Swanton ; 02340 and 12040 are also 
very rare in the British Isles, the latter being only reported by the Rey. 
W. A. Shaw, but all are on record by Dr. von Martens for Germany. 
Dr. yon Martens also quotes as German 12005 and 10340, and Picard 
cites (12)300 from the Somme, but these have not as yet been found in 
the British Isles or in other countries. 
The formule 1(23)00, (12)040, and 02045 are according to present 
knowledge restricted to the British Isles, and have never been reported 
from any other country; while (123)00, (12)005, 10(34)0, 0(234)0, 02(34)0, 
00(345), 00(34)5, 02305, 0(23)05, and 020(45) are as yet quite unknown. 
The two-banded group contains fourteen variations: 
E20. 0:0 00340 10300 02005 
(1 2)000 00(34)0 10040 00305 
02300 0.0: O45 10005 
0(23)00 000(45) 02040 
‘he commonest torms in this country are 10005, 00045, 00305, and 
00340, which are also found in Germany, France, and Switzerland, the 
latter variety in North America also. 
