[1][2] The genus is primarily found in Sub-Saharan Africa, but one species occurs in parts of southern and southeastern Asia.
[4] Most (but not all) species have a white upper lip,[3] and the genus is sometimes known as the white-lipped frogs.
[1][3] Within the genus, Amnirana nicobariensis appears to be the sister taxon of the African clade of species, but the data are inconclusive.
[3] A later study suggested it to be closer to other Asian Hylarana sensu lato than to African Amnirana.
[4] The current delimitation of Amnirana is primarily based on molecular evidence in combination with geography.