Related Clues:

• Shellfish with hinged double shells, like oysters
• Oysters, clams and others with hinged shell
• Mollusks with two shells hinged together
• Mollusks with hinged shells
• Is that the way radio used to work for Molly Malone, by the sound of them?
• Clams and oysters, e.g
• eg Oysters
• Molluscs with hinged shells