Congolius is a genus of frogs in the family Hyperoliidae. It is monotypic, being represented by the single species Congolius robustus. It is endemic to the Democratic Republic of the Congo. Its natural habitats are subtropical or tropical moist lowland forests, swamps, freshwater marshes, intermittent freshwater marshes, rural gardens, and heavily degraded former forest. References Endemic fauna of the Democratic Republic of the Congo Amphibians described in 1979 Taxonomy articles created by Polbot Monotypic amphibian genera