FIGURE 4 in The tadpoles and advertisement calls of Pleurodema bibroni Tschudi and Pleurodema kriegi (Müller), with notes on their geographic distribution and conservation status (Amphibia, Anura, Leiuperidae)

FIGURE 4. Advertisement call of Pleurodema bibroni (A) from Barra de Valizas, Department of Rocha, Uruguay (MNHN 7169, water temperature 16ºC, air temperature 14ºC), and Pleurodema kriegi (B) from Pampa de Achala, Province of Córdoba, Argentina (MLP. A 3526, water temperature 11ºC, air temperature 8.5ºC). Oscillogram (top) and sonogram (center) of a single call, and oscilogram of four notes (bottom).