Fig. 5. Area scan and deflection shapes of the tympanic membrane (TM) in X. triangulum. Area scans of tympanal deflections for three different frequencies. The deflections are shown each time for four different phases along the oscillation cycle. Deflections are additionally shown as profiles, as if looking at the tympanum from its side. Red indicates positive displacement (or outward tympanal deflections), and green indicates negative displacement (or inward tympanal deflections).