Which one of these animals is jawless - (1) Sphyrna (2) Trygon (3) Myxine (4) Shark

Which one of these animals is jawless - (1) Sphyrna (2) Trygon (3) Myxine (4) Shark
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(3) Myxine Explanation: Myxine is a species of jawless fish. It is known as Hag fish in Europe. These are generally classified with the lampreys into the superclass Agnatha (law-less vertebrates) within the subphylum Vertebrata. All other living fishes (shark, rays, chimeras and bony fishes) possess true jaws derived from gill arches and are placed in the superclass Gnathostomata.
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