#4963 · 🪼 jellyfish, starfish, worms & co
Eccentric Sand Dollar
Dendraster excentricus
🪼 Jellyfish, starfish, worms & co 📍 in Europe, not in NL
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © EllieTrombone · CC BY-NC 4.0
- 2. © Charlotte Seid · CC BY-NC 4.0
- 3. © Wendy Feltham · CC BY-NC 4.0
- 4. © BJ Stacey · CC BY-NC 4.0
- 5. © BJ Stacey · CC BY-NC 4.0
- 6. © BJ Stacey · CC BY-NC 4.0
- 7. © Lauren Glevanik · CC BY-NC 4.0
- 8. © Arielle Kohl · CC BY-NC 4.0
- 9. © monicavivianna · CC BY-NC 4.0
- 10. © ntrout · CC BY-NC 4.0
what is it?
Eccentric sand dollar ( Dendraster excentricus ), also known as the sea-cake , biscuit-urchin , western sand dollar , or Pacific sand dollar , is a member of the order Clypeasteroida, better known as sand dollars, a species of flattened, burrowing sea urchins found in the northeast Pacific Ocean from Alaska to Baja California.
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
- No confirmed wild sightings in the Netherlands on iNaturalist: you'd have to travel for this one.
- 12,239 observations worldwide on iNaturalist.
- Scientifically named by Johann Friedrich von Eschscholtz in 1831 (195 years ago).
fact sheet
- English
- Eccentric Sand Dollar
- scientific name
- Dendraster excentricus
- class
- Echinoidea
- order
- Echinolampadacea
- family
- Dendrasteridae
- sightings in NL
- 0
- sightings in Europe
- 1
- sightings worldwide
- 12,239
- GBIF records in NL
- 0
- weight
- —
- length
- —
- lifespan
- —
- named
- 1831 by Johann Friedrich von Eschscholtz
Sources: iNaturalist taxon 117696, Wikidata Q2212339, GBIF 2279084, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.