Gephyromantis cornutus, commonly known as the Horned Madagascar Frog, is a species of frog in the family Mantellidae. It is endemic to Madagascar. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, and rivers. It is threatened by habitat loss. References cornutus Endemic fauna of Madagascar Taxonomy articles created by Polbot Amphibians described in 1992