Y-bar Moray
Amazing fact
Some of the Y-bar Moray’s dark bars are shaped like the letter Y.
The Ichthyological Society of Japan
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An illustration based on the real animal.
A little discovery to share.
Its body is light brown, with black bars of about the same width.
THE REAL WORLD
The real Y-bar Moray
- Scientific name
- Gymnothorax ypsilon
- Japanese name
- オキノシマウツボ
- Group
- Ocean animals
- Order
- Anguilliformes
- Family
- Muraenidae
- Genus
- Gymnothorax
It lives in fairly deep water from Mie Prefecture southward in Japan to Taiwan and the Hawaiian Islands.
By day it hides in the shadows of rocks, and at night it comes out and swims around looking for food.
Basic data
- Active
- At night (nocturnal)
- Range
- South from Mie Prefecture, Taiwan, and the Hawaiian Islands
Where the Y-bar Moray 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
- 日本語
- オキノシマウツボ
- 简体中文
- 褐首裸胸鳝
- 繁體中文
- 丫環裸胸鯙
- Português (Brasil)
- Moréia-marca-de-y
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 — オキノシマウツボChecked: 2026-11-04
- The Ichthyological Society of Japan — A New Moray Eel (Gymnothorax: Muraenidae) from Japan and HawaiiChecked: 2026-11-09
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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