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Ocean animals

Inshore hagfish

Amazing fact

The inshore hagfish has eyes buried beneath its skin.

下田海中水族館
Inshore hagfish in its habitat (illustration)

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An illustration based on the real animal.

A little discovery to share.

The inshore hagfish has eyes buried beneath its skin.

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THE REAL WORLD

The real Inshore hagfish

Scientific name
Eptatretus burgeri
Japanese name
ヌタウナギ
Group
Ocean animals
Class
Myxini
Order
Myxiniformes
Family
Myxinidae
Genus
Eptatretus
Facts about the real animal.

Where the name “Inshore hagfish” comes from

The Japanese name includes unagi because its long, slender shape resembles an eel.

東邦大学
01

It lives along Japan's Pacific coast from Miyagi to Kyushu and its Sea of Japan coast from Akita to Nagasaki, and off southern Korea and Taiwan.

02

When disturbed, it releases a slimy mucus called "nuta" that turns the seawater around it into jelly.

03

Among hagfishes, it is one that also lives in fairly shallow water.

How the Inshore hagfish lives

It has no jaws and uses teeth in a mouth beneath its head to scrape and eat flesh from dead fish.

下田海中水族館

Basic data

Range
Seto Inland Sea, southern and southeastern coasts of the Korean Peninsula, Jeju Island, Jiangsu, Taiwan, and elsewhere
鳥羽水族館

Where the Inshore hagfish has been recorded

World map with dots where the Inshore hagfish has been recorded
Each dot marks a place with observations or specimens shared on GBIF. Some records are of animals that strayed or were brought by people, so the dots are not always where the animal lives.

Records: GBIF.org (CC0 and CC BY 4.0 records, retrieved 2026-11-07). Map: Natural EarthSee the records on GBIF

Where it livesJapanAsiaOcean

Watch wild animals from a distance. Do not touch or feed them, and take care of the places where they live.

Names around the world

简体中文
蒲氏盲鳗
繁體中文
布氏黏盲鰻
한국어
먹장어
Português (Brasil)
Peixe-bruxa-coreano

Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.

Sources and how we check

We check each fact against its source. The illustrations simplify how the real animal looks.

The classification (class, order, family, genus) follows Wikidata records, checked against GBIF. Classifications can change as research goes on.

The basic data are the values given in each source. They vary with how the animal is measured, whether it is male or female, and whether it lives in the wild or in captivity.

This page was translated from the original Japanese with the help of AI.

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