Figure 6 from: Ron SR, Venegas1 PJ, Ortega-Andrade HM, Gagliardi-Urrutia G, Salerno P (2016) Systematics of Ecnomiohyla tuberculosa with the description of a new species and comments on the taxonomy of Trachycephalus typhonius (Anura, Hylidae). ZooKeys 630: 115-154. https://doi.org/10.3897/zookeys.630.9298

Figure 6 - Oscillogram, sound spectrogram (first column), and power spectrum (second column) of advertisement calls of Tepuihyla shushupe sp. n. (A) and Tepuihyla tuberculosa comb. n. (B). Note differences in call length and number of notes (first column). Both species have the dominant frequency (arrows) in the first harmonic but in Tepuihyla shushupe sp. n. the second harmonic has similar energy content (asterisk), while in Tepuihyla tuberculosa comb. n. it has much less.