"Rhacophorus vampyrus: IUCN SSC Amphibian Specialist Group; Instituto Boitatá de Etnobiologia e Conservação da Fauna (2023). "Alagoas Heart-tongued Frog: Phyllodytes acuminatus". IUCN Red List of Threatened Species doi:10.2305/IUCN.UK.2016-3.RLTS.T22679889A85975013.en