Noah Webster Dictionary (1913 edition): Dipnoi

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Noah Webster Dictionary (1913 edition): Dipnoi


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(n. pl.) A group of ganoid fishes, including the living genera Ceratodus and Lepidosiren, which present the closest approximation to the Amphibia. The air bladder acts as a lung, and the nostrils open inside the mouth. See Ceratodus, and Illustration in Appendix.