FIG. 9 in The exploitation of molluscs and other invertebrates in Alexandria (Egypt) from the Hellenistic period to Late Antiquity: food, usage, and trade

FIG. 9. — Traces of mortar on: A, spiny murex (Bolinus brandaris Linnaeus, 1758); B, cerith (Cerithium sp. Bruguière, 1789) from Cricket Ground site; C-E, thorny oyster (Spondylus gaederopus Linnaeus, 1758) from Billiardo Palace. Scale bars: 10 mm.