FIG. 7 in The exploitation of molluscs and other invertebrates in Alexandria (Egypt) from the Hellenistic period to Late Antiquity: food, usage, and trade

FIG. 7. — Some examples of shells from a 2nd century BC occupation level on the Diana Theatre site. A, B, bittersweet clam (Glycymeris sp. da Costa, 1778); C, rustic dove snail (Columbella rustica Linnaeus, 1758). Scale bars: 10 mm.