Advertisement call and new distribution records of Hypsiboas leucocheilus (Anura: Hylidae).

The article reports on the advertisement calls and distribution recordings of hylid genus Hypsiboas leucocheilus. It states that calls were gathered using a professional Marantz PMD 660 digital recorder provided with a Yoga EM-9600 external directional microphone. It notes that social context and motivation is one of the variables that may influence the call parameters for the genus. Moreover, it explores the morphological differences, repetition rate, and dominance frequency of identifying Hypsiboas leucocheilus.