THE BRITISH NATURALIST. 



[July 



well to explain it briefly. The normal shell of either species has five 

 bands. The formula for such a specimen is 12345. When a band is 

 absent a cypher is substituted, thus, 10345. When a band is 

 interrupted at intervals a colon takes the place, as 1:345. This 

 character seems to be much more common on the Continent than in 

 England. When a band is ill-developed it appears as a small figure 

 below the line, as i 2 345- When two or more bands are united, they are 

 placed between brackets, thus, 1 (23)45. When a band is split into two or 

 more its figure is repeated, thus 123345. X is used for an extra band 

 not clearly belonging to any of the normal five. 



Helix Nemoralis, L. 



I2 345 



TV T At"\ -1 



Moq. Tand. 



ooo 45 



r. nov. 



io 345 



TV PC 1 



Moq. land. 



10300 



Ckll. 



° 2 345 



TV /T /~ta i 



Moq. land. 



i 2 3(45) 



Ckll. 



12045 



Moq. Tand. 



003(45) 



Ckll. 



oo345 



TV ,<T At~\ 1 



Moq. land. 



Q23(45) 



i 11 



Ckll. 



00045 



"TV T ryA -i 



Moq. land. 



0(23) (45) 



s~\ 1 11 



Ckll. 



00305 



Moq. Tand. 



(12345) 



Ckll. 



00300 



TV T AtA 1 



Moq. land. 



(12)3(45) 



Walks Kew 



00000 



TV IV i 



Moq. land. 



W3(45) 



Ckll. 



00340 



Kreglmger. 



o 23 (45) 



/-> i 11 



Ckll. 



^345 



Koebuck. 



123(45) 



i 11 



Ckll. 



i 2 345 



F. Fenn. 



oo( 34 5) 



1 11 



Ckll. 



i 2 345 



Cockerell. 



02(34)5 



Ckll. 



i°345 



1 11 



Ckll. 



(12345) 



W . Kew. 



1234s 



1. nov. 



(i2345) 



T T T T 7~ 



W. Kew. 



12345 



Cj. Roberts. 



Vl234oj 



W. Kew. 



003,5 



1 11 



Ckll. 



i2 3 3(45) 



Roeb. 



00305 



Ckll. 



oo 3 3 3 45 



Koeb. 



oo 345 



Ckll. 



i23 x 45 



Ckll. 



003,0 



Roeb. 



O234455 



Ckll. 



OOgOO 



Ckll. 



000(44)0 



Ckll.* 



°2345 



Ckll. 



003300 



Scott. 



023 4 0 



Ckll. 



I2 3 x 45 



Ckll. 



10,45 



Ckll. 



oo 344 o 



Ckll. 



oo 34 5 



Roeb. 



000(445) 



f. nov. 



oo 3 45 



Ckll. 



123(45) 



W. Kew. 



oo 34 o 



Ckll. 



(12)3(45) 



W. Kew. 



ooo 4 5 



Ckll. 



(12)3(45) 



f. nov. 



00345 



Roeb. 



x ( 2 3)345 



f. nov. 



0-2345 



W r allis Kew. 



(12)300 



f. nov. 



12,45 



Ckll. 



(123,45) 



Milne. 



o 2 34 5 



Ckll. 



I2 3(45) 



Moq. Tand. 



12345 



Moq. Tand. 



!( 2 3)(45) 



Moq. Tand. 



12300 



G. Roberts. 



!( 2 3)45 



Moq. Tand. 



00345 



Ckll. 



00(34)0 



Taylor. 



*The split band bracketed indicates a band which is split into two, but becomes joined 

 near the mouth of the shell. 



