In situ hybridizations of antisense riboprobes for the indicated Fzd mRNAs to paraffin sections from two-month old mice. Top two panels, cross-sections of the saccular sensory macula; bottom two panels, Scarpa’s ganglion of the vestibular nerve. No labeling was observed for the other Wnt receptors, as exemplified for Fzd9 and −10, or with sense probes. Scale bar, 40 μm for the top and 50 μm for the bottom panels.