The Tago's brown frog or simply Tago frog (Rana tagoi) is a species of frog in the family Ranidaeendemic to Japan. It is widely distributed within Japan and found on Honshu, Shikoku, and Kyushu, as well as on some outlying islands. There are two subspecies:
These frogs are found in mountainous areas close to streams in the leaf-litter, or underneath stones in the streams. They lay their eggs in subterranean rivers, where the tadpoles grow into frogs. In late spring their croaks can be heard from above ground.[1]
^Frost, Darrel R. (2015). "Rana tagoi Okada, 1928". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 10 June 2015.