Green brittle star
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An illustration based on the real animal.
A little discovery to share.
The green brittle star inflates and deflates its body like a balloon.
THE REAL WORLD
The real Green brittle star
- Scientific name
- Ophiarachna incrassata
- Japanese name
- オオクモヒトデ
- Group
- Ocean animals
- Class
- Ophiuroidea
- Order
- Ophiacanthida
- Family
- Ophiomyxidae
- Genus
- Ophiarachna
A brittle star that lives from central Honshu southward and across the Indian and Pacific oceans.
How the Green brittle star lives
It comes out at night to feed. At dusk, it has been seen lifting its central disc off the seabed and trapping small fish between its arms. During the day, it hides under coral and rubble.
Solitary Islands Underwater Research GroupAustralian MuseumBasic data
- Range
- South of central Honshu, Indian Ocean, and Pacific Ocean
Where the Green brittle star 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
- オオクモヒトデ
- 简体中文
- 厚蜘蛇尾
- 繁體中文
- 巨綠蛇尾
- Français
- Ophiure verte
- Deutsch
- Olivgrüner Schlangenstern
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 — オオクモヒトデChecked: 2026-11-04
- Australian Museum — Ophiarachna incrassataChecked: 2026-11-07
- Solitary Islands Underwater Research Group — Ophiarachna incrassata (Lamarck, 1816)Checked: 2026-11-07
- 北海道大学 — 5本腕と6本腕のオオクモヒトデは「ふくらみ方」が違う～からだの形が，動きを協調させるデザイン～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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