Prionocidaris baculosa
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An illustration based on the real animal.
A little discovery to share.
The long spines of a Nokogiri sea urchin taper toward their tips.
THE REAL WORLD
The real Prionocidaris baculosa
- Scientific name
- Prionocidaris baculosa
- Japanese name
- ノコギリウニ
- Group
- Ocean animals
- Class
- Echinoidea
- Order
- Cidaroida
- Family
- Cidaridae
- Genus
- Prionocidaris
Its spines have rows of saw-tooth bumps, which gave it its Japanese name, nokogiri ("saw").
How the Prionocidaris baculosa lives
It usually stays in slightly dark places such as gaps between rocks.
八丈植物公園・八丈ビジターセンターBasic data
- Range
- Sagami Bay and southward, Indian Ocean, and western Pacific
Where the Prionocidaris baculosa 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
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 — ノコギリウニChecked: 2026-11-04
- 八丈植物公園・八丈ビジターセンター — ノコギリウニ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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