#4673 · 🐌 snails, slugs & other molluscs
Catriona aurantia
Catriona aurantia
🐌 Snails, slugs & other molluscs 📍 in the Netherlands
7 photos from iNaturalist (Creative Commons) · credits & licences
what is it?
Catriona aurantia is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusk in the family Trinchesiidae. It was incorrectly synonymised with Catriona gymnota from the Western Atlantic but shown to be a distinct species by DNA analysis.
base stats
Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).
fun facts
- Spotted 22 times in the Netherlands on iNaturalist.
- 191 observations worldwide on iNaturalist.
fact sheet
- scientific name
- Catriona aurantia
- class
- Gastropoda
- order
- Nudibranchia
- family
- Trinchesiidae
- sightings in NL
- 22
- sightings in Europe
- 179
- sightings worldwide
- 191
- GBIF records in NL
- 503
- weight
- —
- length
- —
- lifespan
- —
relatives· Trinchesiidae
Sources: iNaturalist taxon 596505, Wikidata Q3790436, GBIF 2292304, Wikipedia (EN). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.