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Ocean animals

Twospot surgeonfish

Amazing fact

The twospot surgeonfish sweeps sand or rock with its teeth and sucks up tiny food particles.

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Twospot surgeonfish in its habitat (illustration)

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An illustration based on the real animal.

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The twospot surgeonfish sweeps sand or rock with its teeth and sucks up tiny food particles.

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THE REAL WORLD

The real Twospot surgeonfish

Scientific name
Ctenochaetus binotatus
Japanese name
コクテンサザナミハギ
Group
Ocean animals
Order
Perciformes
Family
Acanthuridae
Genus
Ctenochaetus
Facts about the real animal.
01

A fish that lives from the southern Pacific coast of Japan, the Izu and Ogasawara Islands and the Ryukyu Islands across the Indian and Pacific Oceans.

02

It has small spots on its head and cheeks, and a black spot at the rear end of its dorsal and anal fins.

How the Twospot surgeonfish lives

It lives among corals in shallow water. Its food includes diatoms and small pieces of algae.

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Basic data

Range
Pacific coast of southern Japan, Izu and Ogasawara Islands, Ryukyu Islands, Indian Ocean to Pacific Ocean
鳥羽水族館

Where the Twospot surgeonfish has been recorded

World map with dots where the Twospot surgeonfish 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

Português (Brasil)
Barbeiro mancha negra

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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