肺鱼：一种属于肺鱼亚纲的鱼类，包括肺鱼，它具有可通过更改肺使具呼吸大气空气特征。

Dipnoan: any of various fishes of the group dipnoi which includes the lungfishes characterized by modified lungs that enable them to breathe atmospheric air.

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一种属于肺鱼亚纲的鱼类，包括肺鱼，其特征为有可改变的肺，从而呼吸大气中的空气。

Any of various fishes of the group Dipnoi, which includes the lungfishes, characterized by modified lungs that enable them to breathe atmospheric air.

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