Duellman, William E. 2019. “The Last One: A New Species of Osteocephalus (Anura: Hylidae) from Colombia, With Comments on the Morphological and Behavioral Diversity Within the Genus”. Phyllomedusa: Journal of Herpetology 18 (2): 141-57. https://doi.org/10.11606/issn.2316-9079.v18i2p141-157.