Japanese gregory
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An illustration based on the real animal.
A little discovery to share.
The Japanese gregory does not attack fish that do not eat algae.
THE REAL WORLD
The real Japanese gregory
- Scientific name
- Stegastes altus
- Japanese name
- セダカスズメダイ
- Group
- Ocean animals
- Order
- Blenniiformes
- Family
- Pomacentridae
- Genus
- Stegastes
It lives in the seas off the Pacific coast of southern Japan, the Ryukyu Islands and Taiwan.
How the Japanese gregory lives
It swims beneath table-shaped corals and among gaps in rocks. It mainly eats small algae growing on rocks. It establishes and defends a territory to keep other fish from eating its food algae.
宇久井ビジターセンターBasic data
- Range
- Pacific coast of southern Japan, Ryukyu Islands, and Taiwan
Where the Japanese gregory has been recorded
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
Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.
Sources and how we check
- 鳥羽水族館 — セダカスズメダイChecked: 2026-11-04
- 宇久井ビジターセンター — セダカスズメダイChecked: 2026-11-07
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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