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Ocean animals

Mikado comb jelly

Amazing fact

Mikado comb jellies appear frequently along the Shonai coast from summer to autumn, sometimes in huge numbers.

鶴岡市立加茂水族館
Mikado comb jelly in its habitat (illustration)

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An illustration based on the real animal.

A little discovery to share.

Mikado comb jellies appear frequently along the Shonai coast from summer to autumn, sometimes in huge numbers.

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THE REAL WORLD

The real Mikado comb jelly

Scientific name
Bolinopsis mikado
Japanese name
カブトクラゲ
Group
Ocean animals
Class
Tentaculata
Order
Lobata
Family
Bolinopsidae
Genus
Bolinopsis
Facts about the real animal.

Where the name “Mikado comb jelly” comes from

The scientific name mikado is said to come from its resemblance to a helmet worn by the Emperor.

鶴岡市立加茂水族館

Although its name includes kurage (jellyfish), it is a comb jelly (ctenophore).

01

Its body is colorless and transparent, and it has no venom. Its name comes from its shape, which looks like a kabuto (samurai helmet).

02

Rows of comb plates run along its sides, and they reflect light and shimmer beautifully.

03

It swims by beating its comb rows one after another, like a line of falling dominoes.

Basic data

Range
Southern Japan
鳥羽水族館

Where the Mikado comb jelly has been recorded

World map with dots where the Mikado comb jelly 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 livesJapanCoastsOcean

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

Português (Brasil)
Carambola-do-mar-mikado

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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