(C) The $Columella$ $auris$ is a bone found in the middle ear of amphibians, reptiles, and birds.It is a modified $Hyomandibular$ bone, which is deriv

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(C) The $Columella$ $auris$ is a bone found in the middle ear of amphibians, reptiles, and birds.It is a modified $Hyomandibular$ bone, which is derived from the dorsal end of the hyoid arch.In mammals, this same structure is homologous to the $Stapes$ bone.