Franke K
Arch Otorhinolaryngol. 1977 Aug 26;217(3):331-7. doi: 10.1007/BF00465550.
Replicas of the freeze-fractured round window membrane were studied in chinchillas. Morphologically identifiable zonulae occludentes were found between the cells facing the tympanic cavity and between the cells bordering the perilymphatic space. Gap junctions were only found between the perilymphatic cells.