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#4949 · 🪼 jellyfish, starfish, worms & co

Blue Garden Flatworm

🇳🇱 Blauwe tuinplatworm ·Caenoplana coerulea

🪼 Jellyfish, starfish, worms & co 📍 in the Netherlands
Blue Garden Flatworm, photo 1 of 10
1/10 © Robin Gwen Agarwal · CC BY-NC 4.0

what is it?

Caenoplana coerulea , known as the Blue Planarian or Blue Garden Flatworm is a species of land planarian.

base stats

  • NL sightings 5iNaturalist, research grade
  • worldwide 3,064iNaturalist 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 5 times in the Netherlands on iNaturalist.
  • 3,064 observations worldwide on iNaturalist.
  • Scientifically named by Henry Nottidge Moseley in 1877 (149 years ago).

fact sheet

English
Blue Garden Flatworm
Nederlands
Blauwe tuinplatworm
scientific name
Caenoplana coerulea
order
Tricladida
family
Geoplanidae
sightings in NL
5
sightings in Europe
67
sightings worldwide
3,064
GBIF records in NL
28
weight
—
length
—
lifespan
—
named
1877 by Henry Nottidge Moseley

relatives· Geoplanidae

Sources: iNaturalist taxon 121271, Wikidata Q1895320, GBIF 2502810, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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