The Sumatran frog or Duttaphrynus sumatranus (Peters, 1871) is the rarest amphibian in Indonesia. Together with the Red Frog (Leptophryne cruentata) and the Ungaran Tree Frog (Philautus jacobsoni), the Sumatran Frog, holds Critically Endangered status from the IUCN Red List.

 Not only that, the three of them had become "mythical frogs" which since being discovered for the first time and have never been found again. Since it was first described in 1871, the Sumatran Toad or Sumatran Toad (Duttaphrynus sumatranus) could only be found again in 2001. For 141 years, this frog which is endemic to the island of Sumatra has become a myth.

 In English the Sumatran frog is called the Sumatra Toad. The Latin name of this animal from the Bufonidae family is Duttaphrynus sumatranus (Peters, 1871) which has the synonym name Bufo sumatranus Peters, 1871.

 After more than a hundred years as a 'mythical frog', it was not until 2001 that the Sumatran frog was rediscovered. It is known that this endemic frog only inhabits the 'Lubuk Selasih' area around Mount Talang on the border of three districts, Padang Pariaman, Solok and Pesisir Selatan, West Sumatra province. Inhabits riverbanks in secondary forest at an altitude of about 1000 meters above sea level. Various surveys conducted at altitudes above 1,260 meters above sea level and below 800 meters above sea level, failed to find this rare species. Naturally, not much could be known about the behavior of this rare animal.

 The distribution area is very narrow. It is estimated that the area is less than 100 square km. Coupled with threats in the form of habitat destruction and conversion of land to agricultural land and silting rivers, it is thought that a major influence on the level of threat to this endemic Indonesian frog So that the IUCN Red List then entered the Sumatran Frog (Duttaphrynus sumatranus) into one of three Indonesian amphibians with the status of Critically Endangered (Very Threatened with Extinction). While the number of the frog population itself is not known until now.

 Indonesia is one of the world's amphibian population centers. At least 392 amphibian species live in Indonesia. Of these, 176 of them are amphibians endemic to Indonesia that are not found in other countries. Unfortunately, 32 of them are threatened with extinction. 20 species are listed as Vulnerable, 9 species are listed as Endangered, and 3 species are listed as Critically Endangered. The three amphibians are the Ungaran Tree Frog (Philautus jacobsoni), Red Frog (Leptophryne cruentata), and Sumatran Toad (Duttaphrynus sumatranus).