Native SpeciesAcadian hermit crab

Pagurus acadianus
FOUND by pden
ID Questioned
Quality checked by apalmer
Peer reviewed by
Field Notes
I found a Hermit Crab and I think that it is awesome! It is really cool because one claw is bigger than the other.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
One of the claws are bigger than the other.
Photo of my evidence.
The Hermit Crab has a gastropod shell.
Photo of my evidence.
The claws are covered with low bumps.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Pagurus acadianus
Common name:
Acadian hermit crab
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
N 44.034800 °
W -68.834950 °
Observation Site Information
A photo of our study site.
Coastal - Rocky intertidal
Trip Information
Lane's Island Preserve
Trip date: 
Fri, 2012-05-11 07:55
Town or city: 
Type of investigation: 
Species Survey
Penobscot Bay???
Time of low tide: 


You are very welcome! Good luck with your field work!

Thank you!! :)

It is hard to tell for sure from the photo. But, I think it's great that you looked so closely and carefully at this crab!

Ok and thank you!! Thanks for even looking at my posting and also thank you for commenting/ replying!! :)

It's hard to tell for sure from the photo, but I don't think this is Pagurus acadianus. I think it might be Pagurus longicarpus, the long-clawed hermit crab. Pagurus acadianus has a bright orange stripe on its claws and this one appears to be brown.

It can be tricky to tell these two crabs apart!

Ya I know. Ms. Palmer and I were wondering if it was the long clawed hermit crab but then, I thought wait a minute my hermit crab has low bumps just like Pagurus acadianus. Please email back soon! :)