Spisula arcuata (SOWERBY)

Fossil mollusc, Spisula arcuata (SOWERBY) (bivalve); 3 shells in poor condition, hand collected from the Pliocene (Mactra Zone, horizon 8) deposits, of Tjörnes,Skeifá, Horizon 8 (3), Tjörnes, Iceland collected by P E P Norton, July 1969