Ikimono KokuhoLiving Treasures of Japan
Prefectural Natural Monument
Crustaceans

Miyako Freshwater Crab

Geothelphusa miyakoensis

Photo: hakkahamushi / CC BY-NC 4.0 / iNaturalist

The Miyako Freshwater Crab is a small freshwater crab living in a few watery places around Miyakojima. Crabs of this group spend their whole lives in streams and damp habitats without going to the sea. Because it is vulnerable to changes in the island's water environment and has a narrow range, it is protected as a Natural Monument.

Scientific name
Geothelphusa miyakoensis
Group
Crustaceans
Prefectures
Okinawa
Japanese Red List (Ministry of the Environment)
Critically Endangered / EndangeredMinistry of the Environment Red List 2020
日本語
ミヤコサワガニ
简体中文
宫古溪蟹

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Natural Monuments related to the Miyako Freshwater Crab

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Designated as a species without a fixed area. Markers show related prefectures.

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Frequently asked questions

Yes. The Miyako Freshwater Crab is protected as a Natural Monument (0 national and 1 prefectural designations). Each designated site is listed under "Natural Monuments related to the Miyako Freshwater Crab" on this page.

The Miyako Freshwater Crab is designated as a species without a fixed area and lives in places such as Okinawa.

The Miyako Freshwater Crab is listed as "Critically Endangered / Endangered" in the Ministry of the Environment Red List 2020 (listed as ミヤコサワガニ).

Animals related to the Miyako Freshwater Crab

Animals in the same group or designated in the same area.

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