Cingula striata (MONTAGU) and/or Cingula semicostata (MONTAGU) variety aculeus (GOULD)

Mollusc shell, Cingula striata (MONTAGU) or Cingula semicostata (MONTAGU) variety aculeus (GOULD) (gastropod, spire shell); condition varies, hand collected from the present day deposits, of Tjörnes shore, Tjörnes, Iceland collected by G Spaink, Netherlands Geological Survey, July 1969