Lithobates

Lithobates is a genus of frogs belonging to the family Ranidae, native to the Americas. The name is derived from '' (stone) and : '' (one that treads), meaning one that treads on rock, or rock climber. As presently defined, it includes many of eastern North America's most familiar aquatic frog species, including the American bullfrog, green frog, and the leopard frogs.

== Systematics == The name was defined by Hillis and Wilcox (2005) for a subgenus of four Central and South American frogs within the genus Rana. The subgenus was subsequently expanded to seven species in Central and South America in a systematic revision of the genus Rana. The name was previously used by Frost et al. as a separate genus of ranid frogs that included most of the North American frogs traditionally included in the genus Rana, including the American bullfrog and northern leopard frog. Frost used the name in this sense in the frog section of a North American common names list edited by Crother (2008). This proposed change has since been rejected by others, such as Stuart (2008), Pauly et al. (2009), AmphibiaWeb, and Yuan et al. (2016). AmphibiaWeb, available at http://amphibiaweb.org/, an online compendium of amphibian names, follows Yuan et al. (2016) in recognizing Lithobates as a subgenus. On the other hand, Amphibian Species of the World 6.0, an online reference, uses Lithobates as a genus. This definition is also followed by, e.g., the International Union for Conservation of Nature (IUCN) and the Society for the Study of Amphibians and Reptiles.