Ikimono KokuhoLiving Treasures of Japan
National Natural Monument
Fish

Miyako Tanago (Tokyo Bitterling)

Pseudorhodeus tanago

A small carp-family fish of spring-fed streams in the Kanto region; males show vivid breeding colors. Females lay eggs inside freshwater mussels. Habitat loss has caused sharp declines, and it is a Natural Monument.

Scientific name
Pseudorhodeus tanago
Group
Fish
Prefectures
Tochigi, Saitama, Chiba, Kanagawa
Japanese Red List (Ministry of the Environment)
Critically EndangeredMinistry of the Environment Red List 2020
日本語
ミヤコタナゴ
简体中文
关东拟鳑鲏

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Natural Monuments related to the Miyako Tanago (Tokyo Bitterling)

Where to see the Miyako Tanago (Tokyo Bitterling)

Facilities whose official websites show this animal on display. Exhibits can change, so check each facility's latest information before you go.

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

The Miyako Tanago (Tokyo Bitterling) is designated as a species without a fixed area and lives in places such as Tochigi, Saitama, Chiba, Kanagawa.

You can see the Miyako Tanago (Tokyo Bitterling) at Inokashira Park Zoo, Tochigi Prefectural Nakagawa Aquatic Park, Saitama Aquarium, among others (confirmed on each facility's official website on 2026-10-15).

The Miyako Tanago (Tokyo Bitterling) is listed as "Critically Endangered" in the Ministry of the Environment Red List 2020 (listed as ミヤコタナゴ).

Animals related to the Miyako Tanago (Tokyo Bitterling)

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

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