7 to 50, depending on the definition Lithobates, commonly known as the bullfrogs, is a genus of true frogs, of the family Ranidae.
The name was defined by Hillis and Wilcox (2005) for a subgenus of four Central and South American frogs within the genus Rana.
[4][5] The subgenus was subsequently expanded to seven species in Central and South America in a systematic revision of the genus Rana.
[6] AmphibiaWeb, available at http://amphibiaweb.org/, an online compendium of amphibian names, follows Yuan et al. (2016) in recognizing Lithobates as a subgenus.
[13] The earliest known members of this genus are known from the Early Miocene of Florida, and appear to belong to the leopard frog species complex.