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Dip"no*i (?), n. pl. [NL., fr. Gr. with two breathing apertures; = twice + breath.] Zool.

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.


© Webster 1913.

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