#4744 · 🐌 snails, slugs & other molluscs
Groene mosdierslak
Palio nothus
🐌 Snails, slugs & other molluscs 📍 in the Netherlands
📍 Menai Strait, Menai Bridge, Wales, GB
📍 Sitka, AK, USA
📍 Finistère, Bretagne, FR
📍 Newry, Mourne and Down, UK
📍 Bangor Bay, Northern Ireland, GB
📍 Menai Suspension Bridge, Menai Strait, UK
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Nathan Jackson · CC BY-NC 4.0
- 2. © Tanguy Loïs · CC BY-NC 4.0
- 3. © Bernard Picton · CC BY-SA 4.0
- 4. © unorthodox_sketch · CC BY-NC 4.0
- 5. Menai Strait, Menai Bridge, Wales, GB:© Nathan Jackson · CC BY-NC 4.0
- 6. Sitka, AK, USA:© Connor · CC BY-NC 4.0
- 7. Finistère, Bretagne, FR:© Tanguy Loïs · CC BY-NC 4.0
- 8. Newry, Mourne and Down, UK:© Bernard Picton · CC BY 4.0
- 9. Bangor Bay, Northern Ireland, GB:© Rebekah Bajkó · CC BY 4.0
- 10. Menai Suspension Bridge, Menai Strait, UK:© Yolanda Evans · CC BY-NC 4.0
what is it?
Palio nothus is a species of sea slug, a nudibranch, a shell-less marine gastropod mollusc in the family Polyceridae.
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 5 times in the Netherlands on iNaturalist.
- 131 observations worldwide on iNaturalist.
- Scientifically named by George Johnston in 1838 (188 years ago).
fact sheet
- Nederlands
- Groene mosdierslak
- scientific name
- Palio nothus
- class
- Gastropoda
- order
- Nudibranchia
- family
- Polyceridae
- sightings in NL
- 5
- sightings in Europe
- 122
- sightings worldwide
- 131
- GBIF records in NL
- 64
- weight
- —
- length
- —
- lifespan
- —
- named
- 1838 by George Johnston
relatives· Polyceridae
#4582 📷 9Four-lined Polycera
🇳🇱 Harlekijnslak
Polycera quadrilineata
👀 282 in NL
#4596 📷 10Winged Thecacera
🇳🇱 Gestippelde mosdierslak
Thecacera pennigera
👀 161 in NL
#4814 📷 7Spotted Dorid
Triopha maculata
🌍 12.2k seen
#4799 📷 9Orange-clubbed Sea Slug
🇳🇱 Wrattige mosdierslak
Limacia clavigera
🌍 1.6k seen
Sources: iNaturalist taxon 499902, Wikidata Q3805044, GBIF 2291785, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.