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Ocean animals

Orangespine unicornfish

Amazing fact

The orangespine unicornfish has forward-pointing, knife-like plates at the base of its tail.

U.S. Geological Survey
Orangespine unicornfish in its habitat (illustration)

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An illustration based on the real animal.

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The orangespine unicornfish has forward-pointing, knife-like plates at the base of its tail.

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THE REAL WORLD

The real Orangespine unicornfish

Scientific name
Naso lituratus
Japanese name
ミヤコテングハギ
Group
Ocean animals
Order
Perciformes
Family
Acanthuridae
Genus
Naso
Facts about the real animal.
01

It lives from the Izu, Ogasawara and Ryukyu Islands to Taiwan and across the Indian and Pacific Oceans.

02

In males, the upper and lower tips of the tail fin stretch out long.

How the Orangespine unicornfish lives

It lives in shallow water near coral reefs or over rocky bottoms. It eats algae growing on the bottom, such as sargassum.

U.S. Geological Survey

Basic data

Range
Indian and Pacific oceans east of Mauritius, excluding Easter Island, and elsewhere
鳥羽水族館

Where the Orangespine unicornfish has been recorded

World map with dots where the Orangespine unicornfish 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

简体中文
颊吻鼻鱼
繁體中文
黑背鼻魚
العربية
الناسو

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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