Roberto, Igor Joventino, and Robinson Botero-Arias. 2013. “The Distress Call of Caiman crocodilus crocodilus (Crocodylia: Alligatoridae) in Western Amazonia, Brazil”. Zootaxa 3647 (4). Auckland, New Zealand:593–596. https://doi.org/10.11646/zootaxa.3647.4.9.