wrinkled frog; Rana rugosa
A species of frog native to East Asia. In Japanese, the katakana name ツチガエル is the usual written form.
The wrinkled frog is often seen in rice paddies and wetlands.
The call of the wrinkled frog is low and short.
Katakana spelling is standard for this species name; usually written in kana.
Kanji spelling is rare and may not be widely recognized; the katakana form is strongly preferred.
Compound of 土, “earth,” and 蛙, “frog,” named for the frog’s earth-colored, rough-skinned appearance.