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An illustration based on the real animal.
A little discovery to share.
The Okada sea slug hatches as a tiny sea slug.
THE REAL WORLD
The real Vayssierea felis
- Scientific name
- Vayssierea felis
- Japanese name
- オカダウミウシ
- Group
- Ocean animals
- Class
- Gastropoda
- Order
- Nudibranchia
- Family
- Okadaiidae
- Genus
- Vayssierea
It uses its radula (a rasping tongue) to bore holes into the shells of spiral tube worms and eat them.
Basic data
- Diet
- Spirorbid worms
- Range
- South of Hokkaido and the Indian to western Pacific
Where the Vayssierea felis 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 — オカダウミウシChecked: 2026-11-04
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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