Ostracod:
Ostracods, or ostracodes, are a class of the Crustacea (class Ostracoda), sometimes known as seed shrimp.
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介形蟲:
介形綱（"Ostracoda"），又名貝虫綱，舊作介形亞綱，其生物泛稱作介形蟲或种子虾，是甲殼亚门的其中一個分支，於水中生活，包括有約6.5萬個品種，而當中只有1.3萬種還在世上，其餘5.2萬皆為化石品種。
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Ostracod介形蟲