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#5062 · 🪼 jellyfish, starfish, worms & co

Atlantic Long-spined Sea Urchin

🇳🇱 Diadema-zee-egel ·Diadema antillarum

Atlantic Long-spined Sea Urchin, photo 1 of 10
1/10 © Greg Grimes · CC BY-SA 4.0

what is it?

Diadema antillarum , also known as the lime urchin , black sea urchin , Grabaskey's bane or the long-spined sea urchin , is a species of sea urchin in the Family Diadematidae.

base stats

  • NL sightings 0iNaturalist, research grade
  • worldwide 3,355iNaturalist observations

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.
  • 3,355 observations worldwide on iNaturalist.
  • Scientifically named by Rudolf Amandus Philippi in 1845 (181 years ago).

fact sheet

English
Atlantic Long-spined Sea Urchin
Nederlands
Diadema-zee-egel
scientific name
Diadema antillarum
class
Echinoidea
order
Diadematoida
family
Diadematidae
sightings in NL
0
sightings worldwide
3,355
GBIF records in NL
0
weight
—
length
—
lifespan
—
named
1845 by Rudolf Amandus Philippi

relatives· Diadematidae

Sources: iNaturalist taxon 52290, Wikidata Q1999987, GBIF 5188162, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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