Lampreys and hag fishes are examples of what kind members of the class a gnat ha?

Lampreys and hagfish are examples of jawless fish, which belong to the class Agnatha. They are characterized by their lack of jaws, paired fins, and a cartilaginous structure. These primitive vertebrates primarily feed on other fish and are often found in both freshwater and marine environments. Their unique adaptations and evolutionary history make them significant in the study of vertebrate evolution.