Rana vesicaria Fermin, 1765. The species is included among the Anura incertae sedis (Frost 2010), but the presence of paired vocal sacs (“... Cette Grenouille a à chaque côté de la machoire inférieure, une Vessie, qui dans les grandes chaleurs sont remplies d’air ...”) and its origin (“ Hollande Equinoxiale”, i.e., Surinam), leads us to consider it as a synonym of Trachycephalus typhonius. Although Fermin’s book was included in the Official Index of Rejected and Invalid Works by Opinion 660 (International Commission on Zoological Nomenclature 1963), only the names of seven species of turtles were formally included in the list of rejected taxa. The rejection of the book suppress all the contained species, and our comment on Rana vesicaria is only intended to tie a loose end in the nomenclature of Neotropical amphibians.

Published as part of Sá, De, 2010, The identity of the crackling, luminescent frog of Suriname (Rana typhonia Linnaeus, 1758) (Amphibia, Anura), pp. 17-30 in Zootaxa 2671 on page 24, DOI: 10.5281/zenodo.276466