Ikimono KokuhoLiving Treasures of Japan
Tri-spine Horseshoe Crab

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

National Natural Monument
Other invertebrates

Imari Bay Horseshoe Crab Breeding Ground

伊万里湾カブトガニ繁殖地 · Imariwankabutoganihanshokuchi

Designated by
National / Natural Monument
Designation type
Habitat / breeding site
Designated on
October 7, 2015
Location
佐賀県伊万里市
Prefectures
Saga
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).

Frequently asked questions

Imari Bay Horseshoe Crab Breeding Ground is a National Natural Monument of Japan (佐賀県伊万里市). A marine arthropod with a hard shell and sword-like…

The designated site is in 佐賀県伊万里市.

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