For R. schlegelii, the mean snout to vent length in males is 35 mm (range 32-43) and for females it is 46 mm (range 43-53). The males have yellowish white nuptial pads and throats that are darkly colored. The forelimb and hindlimb webbing is not well developed. The skin on the back is almost completely smooth. The supratympanic fold is prominent, but no dorsolateral fold exists. This species has 7-8 vomerine teeth and a pair of slit-like vocal openings. The tips of the fingers have truncated discs with circummarginal grooves.
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Japan
R. schlegelii is found on the islands of Honshu, Shikoku, and Kyushu in Japan. This species is generally found in either rice fields in the lowlands or marshes in the mountainous regions.
R. schlegelii can be found in sympatry with R. arboreus. The mating call of R. schlegelii has 5-7 pulses which last for .2 seconds with an interval of .5 seconds.
Maeda, N. and Matsui, M. (1990). Frogs and Toads of Japan, 2nd edition. Bun-Ichi Sogo Shuppan Co., Ltd., Tokyo, Japan.
Written by Ambika Sopory (shambika AT hotmail.com), UC Berkeley
First submitted 2001-10-22
Edited by Vance Vredenburg (2001-12-18)
Citation: AmphibiaWeb: Information on
amphibian biology and conservation. [web application]. 2013. Berkeley, California:
(Accessed: May 19, 2013).
AmphibiaWeb's policy on data use.