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#4850 · 🪼 jellyfish, starfish, worms & co

Common Moon Jelly

🇳🇱 Oorkwal ·Aurelia aurita

🪼 Jellyfish, starfish, worms & co 📍 in the Netherlands
Common Moon Jelly, photo 1 of 10
1/10 © Bianca Bahlert · CC BY-NC 4.0

what is it?

Aurelia aurita (also called the common jellyfish , moon jellyfish , moon jelly , or saucer jelly ) is a widely studied species of the genus Aurelia . All species in the genus are closely related, and it is difficult to identify Aurelia medusae without genetic sampling; most of what follows applies equally to all species of the genus. The most common method used to identify the species consists of selecting a jellyfish from a harbour using a device, usually a...

base stats

  • NL sightings 512iNaturalist, research grade
  • worldwide 11,251iNaturalist 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

  • Spotted 512 times in the Netherlands on iNaturalist: the #4 most seen of the jellyfish, starfish, worms & co in NL.
  • 11,251 observations worldwide on iNaturalist.
  • Scientifically named in 1758 (268 years ago).

fact sheet

English
Common Moon Jelly
Nederlands
Oorkwal
scientific name
Aurelia aurita
class
Scyphozoa
order
Semaeostomeae
family
Ulmaridae
sightings in NL
512
sightings in Europe
6,796
sightings worldwide
11,251
GBIF records in NL
34,337
weight
—
length
—
lifespan
—
named
1758

relatives· Ulmaridae

Sources: iNaturalist taxon 48328, Wikidata Q26864, GBIF 2264442, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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