#5057 · 🪼 jellyfish, starfish, worms & co
Western Pacific purple sea urchin
Heliocidaris erythrogramma
🪼 Jellyfish, starfish, worms & co 📍 outside Europe
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Marine Explorer (Dr John Turnbull) · CC BY-NC-SA 4.0
- 2. © Mike · CC BY-NC 4.0
- 3. © Fam Charko · CC BY-NC-ND 4.0
- 4. © Alan Melville · CC BY-NC-ND 4.0
- 5. © Wayne Martin · CC BY-NC 4.0
- 6. © Mike · CC BY-NC 4.0
- 7. © Tony Strazzari · CC BY-NC 4.0
- 8. © Alan Melville · CC BY-NC-ND 4.0
- 9. © Christopher Mark · CC BY 4.0
- 10. © reefwatchsa · CC BY-NC 4.0
what is it?
Heliocidaris is a genus of sea urchins, part of the familia Echinometridae.
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.
- 3,530 observations worldwide on iNaturalist.
fact sheet
- English
- Western Pacific purple sea urchin
- scientific name
- Heliocidaris erythrogramma
- class
- Echinoidea
- order
- Camarodonta
- family
- Echinometridae
- sightings in NL
- 0
- sightings worldwide
- 3,530
- GBIF records in NL
- 0
- weight
- —
- length
- —
- lifespan
- —
relatives· Echinometridae
Sources: iNaturalist taxon 355859, Wikidata Q1851758, GBIF 4876686, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.