Günther, R. 2013. From a dwarf to a giant: Revalidation of Callulops valvifer (Barbour, 1910), (Amphibia, Anura, Microhylidae). Zootaxa. 3641, 3 (Apr. 2013), 271–281. DOI:https://doi.org/10.11646/zootaxa.3641.3.6.