#4595 · 🐌 snails, slugs & other molluscs
crested aeolis
🇳🇱 Blauwtipje ·Antiopella cristata
🐌 Snails, slugs & other molluscs 📍 in the Netherlands
8 photos from iNaturalist (Creative Commons) · credits & licences
what is it?
Janolus cristatus , sometimes known by the common name crested aeolis , is a species of nudibranch, a marine gastropod mollusk in the family Proctonotidae.
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 163 times in the Netherlands on iNaturalist: the #27 most seen of the snails, slugs & other molluscs in NL.
- 1,093 observations worldwide on iNaturalist.
fact sheet
- English
- crested aeolis
- Nederlands
- Blauwtipje
- scientific name
- Antiopella cristata
- class
- Gastropoda
- order
- Nudibranchia
- family
- Janolidae
- sightings in NL
- 163
- sightings in Europe
- 1,015
- sightings worldwide
- 1,093
- GBIF records in NL
- 1,129
- weight
- —
- length
- —
- lifespan
- —
relatives· Janolidae
Sources: iNaturalist taxon 889135, Wikidata Q106219003, GBIF 4360191, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.