Nucula cf. nucleus (LINNE)

Mollusc shell, Nucula cf. nucleus (LINNE) (bivalve, nut shell); fragment of shell, with hinge, dredged from seabed from the Quaternary (Holocene) deposits, of Eddystone Shell Gravel Sula A5, Eddystone, Plymouth, Devon, England collected by Plymouth Marine Biological Station