dipnoi

Noun
Synonyms: Dipnoisubclass Dipnoi

WordNet 3.0

Noun (1)

  1. bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of CrossopterygiiSynonyms: Dipnoisubclass Dipnoi
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Webster's Dictionary (GCIDE)

Dipnoi \Dip"no*i\, n. pl. [NL., fr. Gr. ? ? with two breathing apertures; di- = di`s- 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. [1913 Webster]
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