#4506 · 🦀 crabs & other crustaceans
Marbled Crab
🇳🇱 Gemarmerde rotskrab ·Pachygrapsus marmoratus
8 photos from iNaturalist (Creative Commons) · credits & licences
what is it?
Pachygrapsus marmoratus is a species of crab, sometimes called the marbled rock crab or marbled crab , which lives in the Black Sea, the Mediterranean Sea and parts of the Atlantic Ocean. 4 in) long. It is an omnivore, feeding on algae and various animals including mussels and limpets.
base stats
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.
- 14,790 observations worldwide on iNaturalist.
- Scientifically named by Johan Christian Fabricius in 1787 (239 years ago).
fact sheet
- English
- Marbled Crab
- Nederlands
- Gemarmerde rotskrab
- scientific name
- Pachygrapsus marmoratus
- class
- Malacostraca
- order
- Decapoda
- family
- Grapsidae
- sightings in NL
- 0
- sightings in Europe
- 12,906
- sightings worldwide
- 14,790
- GBIF records in NL
- 2
- weight
- —
- length
- —
- lifespan
- —
- named
- 1787 by Johan Christian Fabricius
relatives· Grapsidae
#4533 📷 10Striped Shore Crab
Pachygrapsus crassipes
🌍 35.5k seen
#4538 📷 10Sally Lightfoot Crab
Grapsus grapsus
🌍 17.5k seen
#4550 📷 9Thin-shelled Rock Crab
🇳🇱 Groene Rotskrab
Grapsus tenuicrustatus
🌍 8.3k seen
#4555 📷 10Purple Rock Crab
Leptograpsus variegatus
🌍 6.9k seen
#4556 📷 7Mottled Lightfoot Crab
🇳🇱 Witgestreepte Rotskrab
Grapsus albolineatus
🌍 6.9k seen
#4512 📷 10East Atlantic Sally Lightfoot Crab
Grapsus adscensionis
🌍 5.5k seen
Sources: iNaturalist taxon 59283, Wikidata Q720580, GBIF 2225815, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.
