Roberto, I.J. and Botero-Arias, R. 2013. The distress call of Caiman crocodilus crocodilus (Crocodylia: Alligatoridae) in western Amazonia, Brazil. Zootaxa. 3647, 4 (May 2013), 593–596. DOI:https://doi.org/10.11646/zootaxa.3647.4.9.