Category:Vertebrates without jaws
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Agnaths, the Jawless Vertebrates is a superclass of Jawless fishes. Most species are prehistoric or extinct, however there are about 60 modern species in the Agnaths superclass, divided into two classes:
Class Myxini - the hagfish
Class Cephalaspidomorphi - the lampreyscs:Kategorie:Bezčelistnatci
