"Agnatha" - Classificação e biologia das lampreias e feiticeiras (peixes agnatos - sem maxilas)

The "Agnatha" fish do not represent a monophyletic group. They were placed within the same group based on plesiomorphy related to the absence of jaws. In this lesson we will talk a little about hagfish (Myxini) and lampreys (Petromyzontiformes). So, if you want to know about these different fish, come learn Bio with me!