Скачать или смотреть Infraphylum Agnatha Part 2: Class Petromyzontida (Lampreys)

We just discussed the hagfish of class Myxini, so now let's move on to the lampreys of class Petromyzontida. This is the only other group of extant jawless fish. What can we say about their form and behavior?

Script by Ryan Helcoski

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