Ikimono KokuhoLiving Treasures of Japan
National Natural Monument
Other invertebrates

Lancelet

Branchiostoma japonicum

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The lancelet is a small, slender, fish-like animal that retains a notochord, the forerunner of the backbone, and is regarded as resembling the ancestors of vertebrates. It lives buried in clean sand, filtering plankton from the water. Habitats in Aichi and Hiroshima, with pure sandy seabeds, are Natural Monuments.

Scientific name
Branchiostoma japonicum
Group
Other invertebrates
Prefectures
Aichi, Hiroshima
Japanese Red List (Ministry of the Environment)
VulnerableMinistry of the Environment Marine Red List (2017)
日本語
ナメクジウオ
简体中文
文昌鱼

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Natural Monuments related to the Lancelet

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Frequently asked questions

Yes. The Lancelet is protected as a Natural Monument (2 national and 0 prefectural designations). Each designated site is listed under "Natural Monuments related to the Lancelet" on this page.

The Lancelet is designated as a species without a fixed area and lives in places such as Aichi, Hiroshima.

The Lancelet is listed as "Vulnerable" in the Ministry of the Environment Marine Red List (2017) (listed as ヒガシナメクジウオ).

Animals related to the Lancelet

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

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