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Ocean animals

Crested Nembrotha

Amazing fact

The crested Nembrotha has black tentacles on its head with green bases.

Australian Museum
Crested Nembrotha in its habitat (illustration)

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An illustration based on the real animal.

A little discovery to share.

The crested Nembrotha has black tentacles on its head with green bases.

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THE REAL WORLD

The real Crested Nembrotha

Scientific name
Nembrotha cristata
Japanese name
トサカリュウグウウミウシ
Group
Ocean animals
Class
Gastropoda
Order
Nudibranchia
Family
Polyceridae
Genus
Nembrotha
Facts about the real animal.
01

It lives from the Ryukyu Islands across the Indian Ocean and the western Pacific.

02

Its dark green body is dotted with pale green, wart-like bumps.

03

The gills on its back are very large for its body size and stand out.

How the Crested Nembrotha lives

It feeds on sea squirts.

Australian Museum

Basic data

Range
Ryukyu Islands and the Indo-West Pacific
鳥羽水族館

Where the Crested Nembrotha has been recorded

World map with dots where the Crested Nembrotha 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

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

Bahasa Indonesia
Biku totol-hijau

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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