IUCN threat status:

Critically Endangered (CR)


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Range Description

Endemic to Central Honshu, Japan; Prefectures: Nagano (AkaishiMountains) and Yamanashi (YatsugatakeMountains). First discovered in the YatsugatakeMountains in 1911 (Shirasawa and Koyama 1913). In 1960 it was also discovered in the AkaishiMountains (Hayashi 1960; Shimizu 1992; Katsuki et al. 2004, 2008). It has an extent of occurrence (EOO) of less than 100 km² (Kastsuki et al. 2010).


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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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