Hairy blackfish

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An illustration based on the real animal.
A little discovery to share.
The hairy blackfish is not as firm-bodied as the stonefish sea cucumber.
THE REAL WORLD
The real Hairy blackfish
- Scientific name
- Actinopyga miliaris
- Japanese name
- オオクロシカクナマコ
- Group
- Ocean animals
- Class
- Holothuroidea
- Order
- Aspidochirotida
- Family
- Holothuriidae
- Genus
- Actinopyga
It lives in seas south of Okinawa and across the Indian Ocean and western Pacific.
Sea cucumbers in this group have tooth-like points, called anal teeth, at their rear opening.
How the Hairy blackfish lives
In the Yaeyama Islands it is often found on sand in reef lagoons.
沖縄美ら海水族館Basic data
- Range
- South of Okinawa and the Indo-West Pacific
Where the Hairy blackfish 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
- オオクロシカクナマコ
- 简体中文
- 乌皱辐肛参
- 繁體中文
- 烏皺輻肛參
- Bahasa Indonesia
- Lotong
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 — オオクロシカクナマコChecked: 2026-11-04
- 沖縄美ら海水族館 — オオクロシカクナマコ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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