Vocalizations in Centrolene zarza sp. nov. Visual representation of the advertisement call (FUTPL-A 263; A–C) and courtship call (paratype MUTPL 933, FUTPL-A 261; D–F) A oscilogram of a single-noted call with the 3 pulses B spectrogram of a single-noted call C power spectrum of a single-noted call D oscilogram of a multi-noted call with 6 notes E spectrogram of a multi-noted call F power spectrum of a multi-noted call.