Characteristics of Class Dipnoi are given below:
1) Palato quadrate strongly fused with the skull.
2) Gill slits one pair only.
3) Skin covered by cycloid scales.
ADVERTISEMENTS:
4) Internal nares present.
5) Uperculum and cloaca present.
6) paired fines are lobed.
7) Pelvic gardel unpaired.
ADVERTISEMENTS:
Example:
1) Protopterus.
2) Lepidoseren.
3) Neoceratodus.