#4509 · 🦀 crabs & other crustaceans
Atlantic Rock Crab
Cancer irroratus
🦀 Crabs & other crustaceans 📍 in Europe, not in NL
📍 Barrington, NS, Canada
📍 Parker River National Wildlife Refuge, Newbury, MA, US
📍 Capital Region, Iceland
📍 Scarborough, ME, USA
📍 Sea St, South Dennis, MA, US
10 photos from iNaturalist (Creative Commons) · credits & licences
- 1. © Hunter Stevens · CC BY-NC 4.0
- 2. © Leïla Brunner · CC BY 4.0
- 3. © Emily Christian · CC BY-NC 4.0
- 4. © Derek Garvey · CC BY-NC 4.0
- 5. © Igor DeLos · CC BY-NC 4.0
- 6. Barrington, NS, Canada:© Bex Goreham · CC BY 4.0
- 7. Parker River National Wildlife Refuge, Newbury, MA, US:© T.J. Cullinane · CC BY-NC 4.0
- 8. Capital Region, Iceland:© Sam R · CC BY-NC 4.0
- 9. Scarborough, ME, USA:© Jeff Goddard · CC BY-NC 4.0
- 10. Sea St, South Dennis, MA, US:© Bennett Susman · CC BY-NC 4.0
what is it?
Cancer irroratus (common name the Atlantic rock crab or peekytoe crab ) is a crab in the genus Cancer . 2 in) across the carapace.
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.
- 8,439 observations worldwide on iNaturalist.
- Scientifically named by Thomas Say in 1817 (209 years ago).
fact sheet
- English
- Atlantic Rock Crab
- scientific name
- Cancer irroratus
- class
- Malacostraca
- order
- Decapoda
- family
- Cancridae
- sightings in NL
- 0
- sightings in Europe
- 142
- sightings worldwide
- 8,439
- GBIF records in NL
- 0
- weight
- —
- length
- —
- lifespan
- —
- named
- 1817 by Thomas Say
relatives· Cancridae
Sources: iNaturalist taxon 53739, Wikidata Q590283, GBIF 2222075, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.