skip to content

#4454 · 🦀 crabs & other crustaceans

Flying Crab

🇳🇱 Gewone Zwemkrab ·Polybius holsatus

🦀 Crabs & other crustaceans 📍 in the Netherlands
Flying Crab, photo 1 of 10
1/10 © Hans Hillewaert · CC BY-SA 4.0

what is it?

Liocarcinus holsatus , sometimes known by the common name flying crab , is a species of swimming crab found chiefly in the North Sea, Irish Sea and English Channel. 6 in) wide, which is brownish-grey with a green tinge. It is very similar in appearance to the harbour crab Liocarcinus depurator .

base stats

  • NL sightings 97iNaturalist, research grade
  • worldwide 707iNaturalist 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 97 times in the Netherlands on iNaturalist: the #19 most seen of the crabs & other crustaceans in NL.
  • 707 observations worldwide on iNaturalist.

fact sheet

English
Flying Crab
Nederlands
Gewone Zwemkrab
scientific name
Polybius holsatus
class
Malacostraca
order
Decapoda
family
Carcinidae
sightings in NL
97
sightings in Europe
290
sightings worldwide
707
weight
—
length
—
lifespan
—

relatives· Carcinidae

Sources: iNaturalist taxon 1551487, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

stan runge 152880f source