Blacktail dascyllus
Amazing fact
Blacktail dascyllus live in groups, using branching corals as shelter.
U.S. Geological Survey
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An illustration based on the real animal.
A little discovery to share.
Blacktail dascyllus live in groups, using branching corals as shelter.
THE REAL WORLD
The real Blacktail dascyllus
- Scientific name
- Dascyllus melanurus
- Japanese name
- ヨスジリュウキュウスズメダイ
- Group
- Ocean animals
- Order
- Blenniiformes
- Family
- Pomacentridae
- Genus
- Dascyllus
It lives in seas south of Okinawa Island, across the western Pacific and around the Caroline Islands.
It also has a black band on its tail fin, which tells it apart from similar fish.
How the Blacktail dascyllus lives
It lives on sheltered coral reefs near shore and in shallow lagoons. Its main food is tiny animal plankton in the water. It lays its eggs on the bottom.
U.S. Geological SurveyBasic data
- Range
- South of Okinawa Island, western Pacific, and Caroline Islands
Where the Blacktail dascyllus 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
- 简体中文
- 黑尾宅泥鱼
- 繁體中文
- 黑尾圓雀鯛
- Español
- Pez damisela blanco y negro
- Français
- Demoiselle à queue noire
- Deutsch
- Vierbinden-Preußenfisch
- Português (Brasil)
- Donzela-de-cauda-preta
- Italiano
- Damigella a quattro bande
- العربية
- هومبج
- Bahasa Indonesia
- Betok zebra
- Русский
- Рыба-матросик
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 — ヨスジリュウキュウスズメダイChecked: 2026-11-04
- U.S. Geological Survey — blacktailed humbug (Dascyllus melanurus) - Species ProfileChecked: 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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