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#4465 · 🦀 crabs & other crustaceans

Common Sea Slater

🇳🇱 Havenpissenbed ·Ligia oceanica

🦀 Crabs & other crustaceans 📍 in the Netherlands
Common Sea Slater, photo 1 of 8
1/8 © Gilles San Martin · CC BY-SA 4.0

what is it?

Ligia oceanica , the sea slater , common sea slater or sea roach , is a littoral woodlouse.

base stats

  • NL sightings 37iNaturalist, research grade
  • worldwide 3,909iNaturalist 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 37 times in the Netherlands on iNaturalist: the #30 most seen of the crabs & other crustaceans in NL.
  • 3,909 observations worldwide on iNaturalist.
  • Scientifically named in 1767 (259 years ago).

fact sheet

English
Common Sea Slater
Nederlands
Havenpissenbed
scientific name
Ligia oceanica
class
Malacostraca
order
Isopoda
family
Ligiidae
sightings in NL
37
sightings in Europe
3,687
sightings worldwide
3,909
GBIF records in NL
1,164
weight
—
length
—
lifespan
—
named
1767

relatives· Ligiidae

Sources: iNaturalist taxon 55356, Wikidata Q638110, GBIF 5175631, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.

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