Rissoa cf.curticostata (S V WOOD)

Fossil mollusc, Rissoa cf.curticostata (S V WOOD) (gastropod, spire shell); worn apex 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