182 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 
2. WESTMINSTER. 
Shells have also been obtained lately from the excavations made in 
Whitehall for the foundations of the new War Office. They occurred 
in a bed of peaty loam at a depth of some 15 feet from the surface, and 
are probably of the same age as those described by one of us in 1890.' 
It is well known that the immediate vicinity of Westminster Abbey 
was in historic times an island called Thorney, and there can be no 
doubt that this bed was deposited by one of the boundary streams. 
From the absence of relics of human occupation, it may be Roman or 
pre-Roman. 
The species of mollusca obtained are twenty-two in number, viz. :— 
Pyramidula rotundata (Mill.). Planorbis corneus (Linn.). 
Hygromia hispida (Linn.). 5, albus, Mill. 
Helix nemoralis, Linn. 5, marginatus, Drap. 
Vallonia pulchella (Miill.). ,, contortus (Linn.). 
Vertigo antivertigo (Drap.). Bithynia tentaculata (Linn.). 
Suceinea elegans, Risso. Valvata piseinalis (Miill.). 
Carychium minimum, Mill. ,, cristata, Mull. 
Limnea auricularia (Linn.). Neritina fluviatilis (Linn.). 
5, pereger (Miill.). Anodonta cygnea (Linn.). 
», palustris (Mill.). Spherium corneum (Linn.). 
», truncatula (Miill.). Pisidium amnicum (Mill.). 
These are all common forms in Holocene beds, and call for no 
extended notice. 
1 Loe. cit., p. 341. 
