FIGURE 4 in The Leptobrachium (Anura: Megophryidae) of the Langbian Plateau, southern Vietnam, with description of a new species

FIGURE 4. Advertisement call of a male Leptobrachium pullum (NCSM 77462; previously as "red-eyed" form) recorded at ambient air temperature of 20.4ºC (A) 40 s waveform of relative amplitude, (B) an expanded waveform, and (C) corresponding spectrogram showing a single representative call, and (D) a power spectrum (relative amplitude vs. frequency).Published as part of Stuart, Bryan L., Rowley, Jodi J. L., Tran, Dao Thi Anh, Le, Duong Thi Thuy & Hoang, Huy Duc, 2011, The Leptobrachium (Anura: Megophryidae) of the Langbian Plateau, southern Vietnam, with description of a new species, pp. 25-40 in Zootaxa 2804 on page 35, DOI: 10.5281/zenodo.20815