Fig. 21 in Herpetofauna Of The Yutajé -Corocoro Massif, Venezuela: Second Report From The Robert G. Goelet American Museum-Terramar Expedition To The Northwestern Tepuis

Fig. 21. Vocalization of Colostethus undulatus, new species; 1.9 sec of a 90 sec recording of variably spaced note couplets. Top: Sound spectrogram graphed with narrow­band (59 Hz) filter, with frequency cursor set at 3600 Hz, and matching waveforms. Bottom: Wide­band (300 Hz) spectrogram of the same notes above and expanded waveform of the first note. The time between waveform cursors is 0.069 sec. Specimen (not caught) recorded 10:30 a.m., February 28, 1995, at air temperature of 19.8°C (AMNH herpetology reel 264:3).