Portlandia lenticula (MÖLLER)

Fossil mollusc, Portlandia lenticula (MÖLLER) (bivalve); thick and fat nice specimens, one shell with valves united, hand collected from the Quaternary deposits, of Renfrew by-pass, Geilston, Renfrewshire, Scotland collected by Norton, P.E.P., Dr and Rose, J , PhD student, Glasgow Univ Geology Dept, 1967