White Thread Fish
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An illustration based on the real animal.
A little discovery to share.
The black sea cucumber has small cone-shaped bumps scattered over its body.
THE REAL WORLD
The real White Thread Fish
- Scientific name
- Holothuria leucospilota
- Japanese name
- ニセクロナマコ
- Group
- Ocean animals
- Class
- Holothuroidea
- Order
- Aspidochirotida
- Family
- Holothuriidae
- Genus
- Holothuria
A sea cucumber that lives from the Kii Peninsula southward and in the Indian Ocean and western Pacific.
Its whole body is jet black, and it is found on the shore between high and low tide.
How the White Thread Fish lives
It uses tentacles around its mouth to pick up and swallow sediment particles. In some regions, it anchors its rear under a rock or similar shelter and stretches out to feed.
National Parks BoardBasic data
- Range
- The Kii Peninsula and southward, and the Indian and western Pacific Oceans
Where the White Thread Fish 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
- ニセクロナマコ
- 简体中文
- 玉足海参
- 繁體中文
- 蕩皮參
- Deutsch
- Weißgefleckte Seegurke
- Italiano
- Oloturia nera indo-pacifica
- العربية
- خيار البحر الأسود
- Bahasa Indonesia
- Teripang getah hitam
- ไทย
- ปลิงทะเลดำ
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 — ニセクロナマコChecked: 2026-11-04
- 沖縄美ら海水族館 — ニセクロナマコChecked: 2026-11-07
- National Parks Board — Holothuria leucospilota (Brandt, 1835)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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