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Ocean animals

Hexabranchus lacer

Amazing fact

The gills of Hexabranchus lacer can contract but cannot be pulled into its body.

DORIS
Hexabranchus lacer in its habitat (illustration)

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An illustration based on the real animal.

A little discovery to share.

It swims by rippling its mantle, the wide edge of its body, like waves.

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THE REAL WORLD

The real Hexabranchus lacer

Scientific name
Hexabranchus lacer
Japanese name
ミカドウミウシ
Group
Ocean animals
Class
Gastropoda
Order
Nudibranchia
Family
Hexabranchidae
Genus
Hexabranchus
Facts about the real animal.
01

It lives in tropical seas from India to the western Pacific.

02

When disturbed, it spreads out the white parts of its body.

03

It swims by rippling its mantle, the wide edge of its body, like waves.

How the Hexabranchus lacer lives

When undisturbed, it keeps the edge of its mantle rolled around the raised part of its back.

DORIS

Basic data

Range
India and the tropical western Pacific
鳥羽水族館

Where the Hexabranchus lacer has been recorded

World map with dots where the Hexabranchus lacer 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

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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