ostracod shells 介形类壳体
ostracod fauna 介形类
ostracod fossil 介形类化石
ostracod shell 介形虫壳体
ostracod faunas 介形虫化石群
planktonic ostracod 浮游介形虫
ostracod assemblage 介形类组合
ostracod assemblages 介形虫组合
同义词： seed shrimp mussel shrimp
以上来源于: WordNet
N any minute crustacean of the mainly freshwater subclass Ostracoda, in which the body is enclosed in a transparent two-valved carapace 介形亚纲动物
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