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Mactra quadrangularis

Mactra quadrangularis Reeve, 1854

Invalid synonym: Mactra veneriformis

• Modern species
• Habitat: Marine

• Classification
• kingdom Animalia, phylum Mollusca, class Bivalvia, family Mactridae, genus Mactra

• Distribution
• Quaternary: Hiroshima
• Pleistocene: Hokkaido, Chiba, Kanagawa
• Holocene: Saitama, Tokyo, Chiba, Aichi