abnormal organ of Corti morphology, abnormal otolithic membrane morphology, abnormal response to novelty, abnormal stria vascularis morphology, abnormal tectorial membrane morphology, abnormal utricular macula morphology, abnormal vestibular system physiology, absent cochlear microphonics, absent cochlear nerve compound action potential, absent linear vestibular evoked potential, absent pinna reflex, bidirectional circling, circling, cochlear ganglion degeneration, cochlear hair cell degeneration, cochlear inner hair cell degeneration, cochlear outer hair cell degeneration, deafness, decreased cochlear hair cell stereocilia number, decreased grooming behavior, decreased vertical activity, detached tectorial membrane, head shaking, impaired balance, impaired swimming, increased mean corpuscular hemoglobin, increased or absent threshold for auditory brainstem response, organ of Corti degeneration, pillar cell degeneration, reduced linear vestibular evoked potential, retropulsion, short cochlear hair cell stereocilia, thin cochlear hair cell stereocilia, vestibular hair cell degeneration, vestibular saccular macula degeneration