A genus of saltwater clam shells with smooth, rounded shells, found in oceans worldwide.
From the genus name Dosinia, possibly derived from a proper name or related to 'dosis' (portion/shell unit). This taxonomic naming reflects 18th-century scientific convention of honoring naturalists.
These clams are named after a scientific concept, and their shells are so perfectly round and smooth that they've been used as decorative elements and even ancient tokens in trade systems.
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