Subclass_DipnoiWordNet Explorer

bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of Crossopterygii

(biology) a taxonomic group containing one or more orders

a class of fish having a skeleton composed of bone in addition to cartilage

air-breathing fish having an elongated body and fleshy paired fins; certain species construct mucus-lined mud coverings in which to survive drought

lungfishes having hornlike ridges on the teeth