Ikimono KokuhoLiving Treasures of Japan
National Natural Monument
Crustaceans

Milky Fiddler Crab

Austruca lactea

Photo: harum.koh from Kobe city, Japan / CC BY-SA 2.0 / Wikimedia Commons

The milky fiddler crab is a small crab whose male has one oversized white claw, waved on tidal flats to attract females. It lives in burrows and retreats into them as the tide rises. The Manose River estuary in Kagoshima is a Natural Monument for its hibiscus stand and tidal-flat community, in which this crab is a signature animal.

Scientific name
Austruca lactea
Group
Crustaceans
Prefectures
Kagoshima
Japanese Red List (Ministry of the Environment)
VulnerableMinistry of the Environment Red List 2020
日本語
ハクセンシオマネキ
简体中文
乳白招潮蟹

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Natural Monuments related to the Milky Fiddler Crab

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Frequently asked questions

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

The Milky Fiddler Crab is designated as a species without a fixed area and lives in places such as Kagoshima.

The Milky Fiddler Crab is listed as "Vulnerable" in the Ministry of the Environment Red List 2020 (listed as ハクセンシオマネキ).

Animals related to the Milky Fiddler Crab

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

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