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). 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. References Further reading sanmartini Amphibians of Brazil Amphibians of Uruguay Amphibians described in 1968 Taxonomy articles created by Polbot