Dendrophryniscus stelzneri ssp. dorsalis Mertens, 1933Melanophryniscus stelzneri ssp. dorsalis (Mertens, 1933)Melanophryniscus dorsalis is a species of toad in the family Bufonidae which is endemic to the coastal Brazil. It is threatened by habitat loss. Its natural habitats are subtropical or tropical sand dunes and nearby areas. It breeds in temporary pools. Melanophryniscus dorsalis is a species of toad in the family Bufonidae which is endemic to the coastal Brazil. It is threatened by habitat loss. Its natural habitats are subtropical or tropical sand dunes and nearby areas. It breeds in temporary pools.