36 PROCEEDINGS COTTESWOLD CLUB I90I 
Cochlicopa lubica (Mill.) Common. This is another 
species of great antiquity occurring in the Butleyan; 
and its distribution is circumpolar, ranging as far as 
Central Asia, China, Japan and Kashmir, whilst it is 
known from the Azores and Madeira. 
Vertigo antivertigo (Drap.) Three examples. It is 
known from numerous Post-Pliocene beds, and its dis- 
tribution ranges throughout Europe and as far as 
Turkestan. 
Vertigo moulinsiana (Dup.) One specimen, and that im- 
perfect. This is perhaps the most noteworthy species, | 
since it is known in this country at the present time 
from a few localities, one in Hampshire, one in Essex, 
one in Dorset, one in Cambridgeshire, two in Hertford- 
shire, one in Galway, the Isle of Arran, and in the rejecta- 
menta of the Trent, in Nottinghamshire. On the Con- 
tinent it occurs in South Scandinavia, Jutland, France, 
Belgium, Switzerland, Germany, the Tyrol and Italy. As 
a fossil it is known from the Pleistocene of Barnwell, 
Clacton, and Copford, and from the Holocene of Chignal 
St. James Essex. 
The probability is that this species is more widely dis- 
tributed in these Islands than is commonly believed, the 
difficulty of finding it being the cause of the supposed 
rarity. It lives on the stems of bullrushes and other 
aquatic plants. 
Clausilia laminata (Mont.) Three examples. This 
species occurs in numerous Holocene beds, but in the 
Pleistocene it is only known from Ightham, Copford, 
Clacton, and Grays. It is common throughout Europe, 
and is found in the Farées. 
Clausilia bidentata (Strém.) This is the Clauszla rugosa, 
Drap., of British authors. It is a common form in Post- 
Pliocene beds, and at the present day it is widely dis- 
tributed throughout Europe. 
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