Ikimono KokuhoLiving Treasures of Japan
National Natural Monument
Other invertebrates

Horseshoe Crab Breeding Ground (Kasaoka)

カブトガニ繁殖地 · Kabutoganihanshokuchi

Photo: Daiju Azuma / CC BY-SA 2.5 / Wikimedia Commons

Designated by
National / Natural Monument
Designation type
Habitat / breeding site
Designated on
March 24, 1928
Location
岡山県笠岡市
Prefectures
Okayama
Scientific name
Tachypleus tridentatus
Designation facts (name, date, location) are compiled from public records by Japanese authorities.

About the Tri-spine Horseshoe Crab

A marine arthropod with a hard shell and sword-like tail, called a living fossil because its form has changed little since ancient times. It spawns on tidal flats along the Seto Inland Sea and in northern Kyushu. Land reclamation has reduced its habitat, and breeding sites in Kasaoka, Okayama, and Imari, Saga, are national Natural Monuments, while one in Saijo, Ehime, is a prefectural Natural Monument.

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Map

Approximate location of the designated site (municipality centre).

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Frequently asked questions

Yes. Horseshoe Crab Breeding Ground (Kasaoka) is a National Natural Monument, designated as: Habitat / breeding site. Designated on March 24, 1928.

The designated site is in 岡山県笠岡市.

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