FIGURE 5 in A new species of Leptolalax (Anura: Megophryidae) from central Vietnam

FIGURE 5. (A) Advertisement call of Leptolalax firthi sp. nov. holotype AMS R 176524 (i) 30 s waveform of relative amplitude (Rel. amp.) over time for 23 calls, (ii) waveform and (iii) corresponding spectrogram of single representative call containing two notes, expanded from section shown in i, and (iv) power spectrum (relative amplitude vs. frequency) of first note; all recorded at an ambient air temperature of 20.2º C. (B) Representative single advertisement calls of (i) paratype AMS R 176522 recorded at an ambient air temperature of 18.8º C, (ii) paratype AMS R 176520 recorded at an ambient air temperature of 19.3º C, and (iii) paratype AMS R 176513 recorded at ambient air temperature of 21.2º C.