hyostylic jaw suspension
hyostylic jaw suspension A type of jaw suspension seen in most fishes, in which the upper jaw is not directly connected to the cranium. The attachment between cranium and upper jaw is made by a ligament at the front end and by the hyomandibular (see hyoid arch) at the rear end (see illustration). Compare amphistylic jaw suspension; autostylic jaw suspension.
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hyostylic jaw suspension