#4451 · 🦀 crabs & other crustaceans
Horse Crab
🇳🇱 Ovaalronde krab ·Atelecyclus undecimdentatus
🦀 Crabs & other crustaceans 📍 in the Netherlands
8 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Gonzalo Mucientes Sandoval · CC BY-NC 4.0
- 2. © Gonzalo Mucientes Sandoval · CC BY-NC 4.0
- 3. © Gonzalo Mucientes Sandoval · CC BY-NC 4.0
- 4. © Gonzalo Mucientes Sandoval · CC BY-NC 4.0
- 5. © Gonzalo Mucientes Sandoval · CC BY-NC 4.0
- 6. © Gonzalo Mucientes Sandoval · CC BY-NC 4.0
- 7. © Valentin de Mazancourt · CC BY-NC 4.0
- 8. © Pierre Corbrion · CC BY-NC-SA 4.0
what is it?
Atelecyclus undecimdentatus is a species of crab in the family Atelecyclidae.
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 198 times in the Netherlands on iNaturalist: the #16 most seen of the crabs & other crustaceans in NL.
- 490 observations worldwide on iNaturalist.
- Scientifically named by Johann Friedrich Wilhelm Herbst in 1783 (243 years ago).
fact sheet
- English
- Horse Crab
- Nederlands
- Ovaalronde krab
- scientific name
- Atelecyclus undecimdentatus
- class
- Malacostraca
- order
- Decapoda
- family
- Atelecyclidae
- sightings in NL
- 198
- sightings in Europe
- 471
- sightings worldwide
- 490
- GBIF records in NL
- 2,174
- weight
- —
- length
- —
- lifespan
- —
- named
- 1783 by Johann Friedrich Wilhelm Herbst
Sources: iNaturalist taxon 363950, Wikidata Q2868808, GBIF 4307474, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.