#4690 · 🐌 snails, slugs & other molluscs
Keeled Ram's-horn
🇳🇱 Gekielde schijfhoren ·Planorbis carinatus
🐌 Snails, slugs & other molluscs 📍 in the Netherlands
8 photos from iNaturalist (Creative Commons) · credits & licences
what is it?
Planorbis carinatus is species of air-breathing freshwater snail, a pulmonate gastropod mollusk in the family Planorbidae, the ramshorn snails.
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 16 times in the Netherlands on iNaturalist.
- 524 observations worldwide on iNaturalist.
- Scientifically named by Otto Friedrich Müller in 1774 (252 years ago).
fact sheet
- English
- Keeled Ram's-horn
- Nederlands
- Gekielde schijfhoren
- scientific name
- Planorbis carinatus
- class
- Gastropoda
- family
- Planorbidae
- sightings in NL
- 16
- sightings in Europe
- 290
- sightings worldwide
- 524
- GBIF records in NL
- 7,052
- weight
- —
- length
- —
- lifespan
- —
- named
- 1774 by Otto Friedrich Müller
relatives· Planorbidae
#4598 📷 9Great Ram's-horn
🇳🇱 Posthoornslak
Planorbarius corneus
LC 👀 146 in NL
#4675 📷 10Margined Ram's-horn
🇳🇱 Gewone schijfhoren
Planorbis planorbis
LC 👀 21 in NL
#4680 📷 10Whirlpool Ram's-horn
🇳🇱 Draaikolkschijfhoren
Anisus vortex
👀 19 in NL
#4726 📷 10American lake limpet
🇳🇱 Smurfslak
Ferrissia californica
LC 👀 8 in NL
#4824 📷 10Marsh Ramshorn
Planorbella trivolvis
LC 🌍 8.7k seen
Sources: iNaturalist taxon 336759, Wikidata Q3199792, GBIF 5778419, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.