#4732 · 🐌 snails, slugs & other molluscs
Flat Periwinkle
🇳🇱 Stompe alikruik ·Littorina obtusata
🐌 Snails, slugs & other molluscs 📍 in the Netherlands
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Masumi Palhof · CC BY-NC 4.0
- 2. © Ramóna Molnár · CC BY-NC 4.0
- 3. © Jason M Crockwell · CC BY-NC-ND 4.0
- 4. © Jason M Crockwell · CC BY-NC-ND 4.0
- 5. © jacilluch · CC BY-SA 4.0
- 6. © Paul Donahue · CC BY-NC 4.0
- 7. © jroachevans · CC BY-NC 4.0
- 8. © Jason M Crockwell · CC BY-NC-ND 4.0
- 9. © julie c · CC BY-NC 4.0
- 10. © lwieye · CC BY-NC 4.0
what is it?
Littorina obtusata , common name the flat periwinkle , is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles.
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 6 times in the Netherlands on iNaturalist.
- 4,293 observations worldwide on iNaturalist.
- Scientifically named in 1758 (268 years ago).
fact sheet
- English
- Flat Periwinkle
- Nederlands
- Stompe alikruik
- scientific name
- Littorina obtusata
- class
- Gastropoda
- order
- Littorinimorpha
- family
- Littorinidae
- sightings in NL
- 6
- sightings in Europe
- 534
- sightings worldwide
- 4,293
- GBIF records in NL
- 1,077
- weight
- —
- length
- —
- lifespan
- —
- named
- 1758
relatives· Littorinidae
Sources: iNaturalist taxon 48916, Wikidata Q1317525, GBIF 2301066, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.