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superclass Agnatha
n.
superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms
同义词:
Agnatha
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superclass Agnatha
n.superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms 同义词:Agnatha
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