Melanophryniscus sanmartini (common name: San Martin redbelly toad) is a species of toad in the family Bufonidae. It is found in Uruguay and southernmost Brazil (Rio Grande do Sul).[2] Its natural habitats are grasslands and rocky outcrops. Reproduction takes place in small streams.
It is threatened by habitat loss caused by exotic tree plantations.[1]
^Frost, Darrel R. (2015). "Melanophryniscus sanmartini Klappenbach, 1968". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 13 August 2015.