abnormal interparietal bone morphology, abnormal membranous labyrinth morphology, abnormal otic capsule morphology, abnormal otic vesicle development, abnormal otic vesicle morphology, abnormal outer ear morphology, abnormal pons morphology, abnormal rhombomere boundary morphology, abnormal rhombomere morphology, abnormal superior vagus ganglion morphology, abnormal trigeminal ganglion morphology, abnormal tympanic ring morphology, abnormal utricular macula morphology, abnormal vagus nerve morphology, abnormal vestibular saccular macula morphology, abnormal vestibulocochlear ganglion morphology, absent cochlear ganglion, absent cochlear nerve, absent common crus, absent endolymphatic duct, absent endolymphatic sac, absent facial nerve, absent facial nuclei, absent parathyroid glands, absent posterior semicircular canal, absent scala media, absent superior olivary complex, absent superior semicircular canal, absent utricle, absent vestibular saccule, absent vestibulocochlear nerve, anoxia, decreased rhombomere 4 size, decreased rhombomere 5 size, delayed neural tube closure, fusion of glossopharyngeal and vagus nerve, increased hindbrain apoptosis, increased rhombomere 3 size, neonatal lethality, complete penetrance, neonatal lethality, incomplete penetrance, no abnormal phenotype detected, perinatal lethality, complete penetrance, perinatal lethality, incomplete penetrance, postnatal lethality, complete penetrance, postnatal lethality, incomplete penetrance, retroesophageal right subclavian artery, rhombomere fusion, small facial motor nucleus, small geniculate ganglion, small malleus, small otic vesicle, small second pharyngeal arch, small superior glossopharyngeal ganglion, small superior vagus ganglion, small vestibular ganglion