Small freshwater crustaceans with a shield-shaped carapace.
小型淡水甲壳动物，长有盾牌状甲壳。
It's the only native crayfish species, and the freshwater crustaceans are are just another part of the ecosystem.
这是唯一的本地小龙虾种，而淡水甲壳动物是生态系统的另一部分。
Any of numerous minute Marine and freshwater crustaceans of the subclass Copepoda, having an elongated body and a forked tail.
桡足动物任一种桡足亚纲的大量海洋或淡水甲壳纲小动物，身体细长，尾部分叉。
Fairy shrimp: any of various transparent freshwater crustaceans of the order anostraca that lack a carapace and characteristically swim upside-down.
仙虾：透明的淡水鳃足类的任何一种，无甲壳并且倒置游动。
Fairy shrimp: any of various transparent freshwater crustaceans of the order anostraca that lack a carapace and characteristically swim upside-down.
仙虾：透明的淡水鳃足类的任何一种，无甲壳并且倒置游动。
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