Learn how to say Agnatha correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word Agnatha:
a group of primitive jawless vertebrates which includes the lampreys, hagfishes, and many fossil fishlike forms. Compare with cyclostome.
Superclass Agnatha: the living forms are in the classes Myxini (hagfishes) and Cephalaspidomorphi (lampreys)
noun & adjective
from modern Latin Agnatha, from a-1 ‘without’ + Greek gnathos ‘jaw’