#4667 · 🐌 snails, slugs & other molluscs
barnacle-eating dorid
🇳🇱 Rosse sterslak ·Onchidoris bilamellata
🐌 Snails, slugs & other molluscs 📍 in the Netherlands
📍 Zeelandbrug, 4675 RB Zierikzee, Nederland
📍 Oosterschelde, Zeeuwse meren, 158_13_400, NL
📍 Oosterschelde, Zeeuwse meren, 158_13_400, NL
📍 Oosterschelde, Zeeuwse meren, 158_13_400, NL
📍 Den Osse 103, 4318 TP Brouwershaven, Nederland
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Nathan Jackson · CC BY-NC 4.0
- 2. © Zach Hawn · CC BY-NC-SA 4.0
- 3. © Robin Gwen Agarwal · CC BY-NC 4.0
- 4. © Alison Young · CC BY-NC 4.0
- 5. © Zach Hawn · CC BY-NC-SA 4.0
- 6. Zeelandbrug, 4675 RB Zierikzee, Nederland:© Carla van Westing · CC BY-NC 4.0
- 7. Oosterschelde, Zeeuwse meren, 158_13_400, NL:© Stefan · CC BY-NC 4.0
- 8. Oosterschelde, Zeeuwse meren, 158_13_400, NL:© Dennis Rabeling · CC BY-NC-ND 4.0
- 9. Oosterschelde, Zeeuwse meren, 158_13_400, NL:© Stefan · CC BY-NC 4.0
- 10. Den Osse 103, 4318 TP Brouwershaven, Nederland:© Glenn Biscop · CC BY-NC 4.0
what is it?
Onchidoris bilamellata , common name the rough-mantled doris , is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Onchidorididae.
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 24 times in the Netherlands on iNaturalist.
- 4,867 observations worldwide on iNaturalist.
- Scientifically named in 1767 (259 years ago).
fact sheet
- English
- barnacle-eating dorid
- Nederlands
- Rosse sterslak
- scientific name
- Onchidoris bilamellata
- class
- Gastropoda
- order
- Nudibranchia
- family
- Onchidorididae
- sightings in NL
- 24
- sightings in Europe
- 353
- sightings worldwide
- 4,867
- GBIF records in NL
- 478
- weight
- —
- length
- —
- lifespan
- —
- named
- 1767
Sources: iNaturalist taxon 47480, Wikidata Q624366, GBIF 5190124, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.