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ostracod(Gk: ostrakon= shell; shelly thing) a small relative of the lobster resembling bivalved shellfish but having crustacean legs in the shell. They are common in sediments and often swim at night.
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ostracoda tiny free-swimming, aquatic crustacean with a hinged, double calcareous shell
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ostracod(n) tiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell
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ostracodA class of Bivalves in the subphylum Crustacea.
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ostracodA class of small crustaceans. They are also part of the zooplankton that live on or within the sea floor.
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