They are in the class Agnatha, designated for fish without jaws (around 100 species in total). 5. Although they are jawless, hagfish have two rows of tooth-like structures made of keratin that they use to burrow deep into carcasses. They can also bite off chunks of food.

Do lampreys and hagfish have jaws?

Lamprey and hagfish are both jawless fishes. They are the only living members of the taxonomical class Agnatha (Greek for “no jaws”).

Do Pacific hagfish have jaws?

Pacific hagfish, also known as the California hagfish and slimy eels, are eel-like primitive fish little changed in the past 330 million years of fossil records. They do not have jaws, a stomach or jaws. Their eyes are rudimentary and their vision is poor but they do have good senses of smell and touch.