subclass Dipnoi

Từ điển WordNet v3.1 - WordNet Dictionary

noun

bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills;
sometimes classified as an order of Crossopterygii
• Syn:
Dipnoi
• Hypernyms:
class
• Member Holonyms:
Osteichthyes, class Osteichthyes
• Member Meronyms:
lungfish, Ceratodontidae, family Ceratodontidae