The kudan. is a yōkai of a "prophecy beast" type, whose news or urban legend has been disseminated in Japan since the Edo Period.
The kudan of "Mount Kurahashi", Tango Province. A kawaraban dated Tenpō 7 (1836). — woodblock-printed (on wood), in the collection of the Tokugawa Institute for the History of Forestry [ja].
The kutabe allegedly was spotted in Mount Tate, Toyama (Hirokata zuihitsu).
Yōkai are a class of supernatural entities and spirits in Japanese folklore. Yōkai are a vast range of beings, including shapeshifters, ghosts, demons, and tricksters. They can be mischievous, helpful
Kudan (yōkai)
…The kudan (件; literally "matter"; or "human-faced bovine"). is a yōkai of a "prophecy beast" type, whose news or urban legend has been disseminated in Japan since the Edo Period. The human-faced, bovine-bodied kudan that…
A yōkai print by Kawanabe Kyōsai
Chōchin-oiwa by Katsushika Hokusai
Kidōmaru by Utagawa Kuniyoshi
Nekomata from the Hyakkai Zukan by Sawaki Suushi