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From there the non-bony fishes can be divided into two classes: Class Agnatha (Jawless Fishes) and Class Chondrichthyes (sharks and rays.) Image from PBS. The members of class Agnatha are startling to look at. Long and eel like, but lacking jaws they can appear faceless and lifeless.
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Nonbony definition
The Classification of Non-Bony Fish. All fishes are part of the Kingdom Animalia and Phylum Chordata (having spinal cords.) From there the non-bony fishes can be divided into two classes: Class Agnatha (Jawless Fishes) and Class Chondrichthyes (sharks and rays.) Class Agnatha (Jawless Fishes)