Genus Elachistocleis Parker, 1927

Type species: Not clearly stated: either Rana gibbosa Linnaeus, by original designation, or Rana ovalis Schneider, 1799, by subsequent designation of Duméril and Bibron, 1841 (sensu Frost 2019).

Remarks: Review of the genus is needed to clarify chaotic taxonomic status of several populations throughout its distribution. Duellman (1997) assigned to Elachistocleis bicolor all forms with an immaculate venter, whereas Lavilla et al. (2003) restricted E. bicolor to southern South America. Similarly, E. ovalis is not the species with spotted venter, as Schneider (1799) clearly states, but one with “ inferne flavidus ” (yellow belly). De Sá et al. (2012) placed Relictivomer into Elachistocleis .