Ikimono KokuhoLiving Treasures of Japan
Greater Horseshoe Bat

Photo: りなべる / CC BY 4.0 / iNaturalist

National Natural Monument
Mammals

Saiko Bat Cave and Its Bats

西湖蝙蝠穴およびコウモリ · Saikokoumorianaoyobikoumori

Designated by
National / Natural Monument
Designation type
Habitat / breeding site
Designated on
December 17, 1929
Location
山梨県南都留郡富士河口湖町
Prefectures
Yamanashi
Scientific name
Rhinolophus ferrumequinum, Rhinolophus cornutus, Plecotus sacrimontis, Pipistrellus abramus
Designation facts (name, date, location) are compiled from public records by Japanese authorities.

About the Greater Horseshoe Bat

A large bat with a horseshoe-shaped nose-leaf, using caves for daytime roosts and hibernation and hunting insects with ultrasound. Bat caves such as Iwaizumi in Iwate and Saiko in Yamanashi are designated Natural Monuments.

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About the Little Japanese Horseshoe Bat

A smaller relative of the Greater Horseshoe Bat, with a complex nose-leaf used to emit ultrasound while hunting insects in flight. It hibernates and roosts in caves, and sites like Iwaizumi in Iwate and Saiko in Yamanashi are protected.

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About the Japanese Long-eared Bat

A medium-sized bat with rabbit-like long ears, roosting in caves and tree hollows and catching insects in flight. Caves such as Iwaizumi in Iwate and Saiko in Yamanashi are protected as Natural Monuments for its habitat.

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About the Japanese House Bat

Japan's most familiar small bat, roosting in attics and shutter boxes and flying at dusk to hunt insects. The Saiko Bat Cave in Yamanashi is protected as a cave and bat habitat, together with other bat species.

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Map

Approximate location of the designated site (municipality centre).

Frequently asked questions

Saiko Bat Cave and Its Bats is a National Natural Monument of Japan (山梨県南都留郡富士河口湖町). A large bat with a horseshoe-shaped nose-leaf, using caves for…

The designated site is in 山梨県南都留郡富士河口湖町.

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