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#5067 · 🪼 jellyfish, starfish, worms & co

Blue Blubber Jelly

Catostylus mosaicus

Blue Blubber Jelly, photo 1 of 7
1/7 © Matty Testoni · CC BY-NC 4.0

what is it?

The jelly blubber ( Catostylus mosaicus ), also known as the blue blubber jellyfish , is a species of jellyfish from coastal regions in the Indo-Pacific. It is the most commonly encountered jellyfish along the Australian eastern coast and large swarms sometimes appear in estuarine waters.

base stats

  • NL sightings 0iNaturalist, research grade
  • worldwide 2,666iNaturalist 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.
  • 2,666 observations worldwide on iNaturalist.

fact sheet

English
Blue Blubber Jelly
scientific name
Catostylus mosaicus
class
Scyphozoa
order
Rhizostomeae
family
Catostylidae
sightings in NL
0
sightings worldwide
2,666
GBIF records in NL
0
weight
—
length
—
lifespan
—

relatives· Catostylidae

Sources: iNaturalist taxon 333776, Wikidata Q2709311, GBIF 2264506, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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