Cerastoderma edule hostiei (Chavan, 1945)

This distinct subspecies represents an ancient, specialized lineage of the common cockle that adapted specifically to the shifting estuarine and coastal sandy bottoms of the regional Neogene basins. They possessed a highly muscular, hook-shaped foot that allowed them to actively hop across the seafloor to escape predatory starfish or rapidly re-burrow if a sudden current uncovered them. Living in shallow, near-shore tidal flat or lagoon environment heavily influenced by fluctuating nutrient levels.