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Ocean animals

Bobbit worm

Amazing fact

The bobbit worm grows larger than any other species in the genus Eunice.

宇久井ビジターセンター
Bobbit worm in its habitat (illustration)

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An illustration based on the real animal.

A little discovery to share.

The bobbit worm grows larger than any other species in the genus Eunice.

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THE REAL WORLD

The real Bobbit worm

Scientific name
Eunice aphroditois
Japanese name
オニイソメ
Group
Ocean animals
Class
Polychaeta
Order
Eunicida
Family
Eunicidae
Genus
Eunice
Facts about the real animal.
01

It lives in warm seas such as the Indian, Pacific and Atlantic Oceans.

02

Usually it hides buried in the sand of the sea floor, with just its head sticking out.

03

When prey comes close, it lunges out and bites with its sharp teeth.

How the Bobbit worm lives

In Japan, it lives on rocky coasts from central Honshu southward. It digs a burrow in the sand to live in. It attacks and eats animals such as fish.

すさみ町立エビとカニの水族館千葉県立中央博物館分館 海の博物館

Basic data

Range
Warm waters of the Indian, Pacific, and Atlantic Oceans, and elsewhere
鳥羽水族館

Where the Bobbit worm has been recorded

World map with dots where the Bobbit worm 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 livesWorld oceansOcean

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
博比特虫
繁體中文
博比特虫
Français
Ver Bobbit

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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