Ansonia is a genus of true toads found in south India, northern Thailand, Malay Peninsula, Tioman Island, Borneo, and Mindanao (Philippines).

[1] These small forest species spawn in streams and have torrent-adapted tadpoles.

[2] Common name stream toads has been coined for the genus, although individual species are also being referred to as slender toads.

[1] The genus was named by Stoliczka after the governor of Penang, Colonel Edward Anson.

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