Vallonia pulchella (MÜLLER)

Fossil mollusc, Vallonia pulchella (MÜLLER) (gastropod, snail); fragment of shell; borehole from the Quaternary (Pleistocene, Early Pleistocene) deposits, Icenian Crag, of the Royal Society Borehole, Ludham, Norfolk, England examined by Dr Peter E.P. Norton, 1961