#4776 · 🐌 snails, slugs & other molluscs
Cratena Slug
Cratena peregrina
🐌 Snails, slugs & other molluscs 📍 in Europe, not in NL
📍 South Aegean, Aegean, GR
📍 80079 Procida NA, Italie
📍 Pierre de Briançon, Marseille, France
📍 Krk, Baška, County of Primorje-Gorski kotar, HR
📍 Medes Islands, Girona, Spain
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Eric Burgers · CC BY-NC 4.0
- 2. © Stefan · CC BY-NC 4.0
- 3. © Gianfrs · CC BY-NC-ND 4.0
- 4. © Philippe Guillaume · CC BY-NC-ND 4.0
- 5. © whodden · CC BY-NC 4.0
- 6. South Aegean, Aegean, GR:© Nicolas Lagière · CC BY-NC 4.0
- 7. 80079 Procida NA, Italie:© Benoît Segerer · CC BY-NC 4.0
- 8. Pierre de Briançon, Marseille, France:© Sylvain Le Bris · CC BY-NC 4.0
- 9. Krk, Baška, County of Primorje-Gorski kotar, HR:© bauerpc · CC BY-NC 4.0
- 10. Medes Islands, Girona, Spain:© Vsevolod Rudyi · CC BY 4.0
what is it?
Cratena peregrina , commonly called the "pilgrim hervia", is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Facelinidae.
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
- No confirmed wild sightings in the Netherlands on iNaturalist: you'd have to travel for this one.
- 3,626 observations worldwide on iNaturalist.
- Scientifically named by Johann Friedrich Gmelin in 1791 (235 years ago).
fact sheet
- English
- Cratena Slug
- scientific name
- Cratena peregrina
- class
- Gastropoda
- order
- Nudibranchia
- family
- Facelinidae
- sightings in NL
- 0
- sightings in Europe
- 3,349
- sightings worldwide
- 3,626
- GBIF records in NL
- 0
- weight
- —
- length
- —
- lifespan
- —
- named
- 1791 by Johann Friedrich Gmelin
relatives· Facelinidae
Sources: iNaturalist taxon 64486, Wikidata Q637770, GBIF 4359818, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.