They can be divided into four smaller groups. These are the myriapods, the arachnids, the crustaceans and the insects.

节肢动物可分成四类，即：多足类、蛛形类、甲壳类和昆虫类。

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They can be divided into four smaller groups. These are the myriapods, the arachnids, the crustaceans and the insects.

节肢动物可分成四类，即：多足类、蛛形类、甲壳类和昆虫类。

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