Invasive SpeciesChinese mitten crab

Eriocheir sinensis
NOT FOUND by Flippinoysters
Cape Elizabeth
ID Confirmed
Quality checked by Flippin' Crabs
Peer reviewed by Flippin' Crabs
Field Notes
it was fun looking for the Chinese mitten crab even though we didn't find it. though it was never in Maine, to begin with so we would never have found it. the Chinese mitten crab is easily identified because it has five ridges on the top.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
We looked where it is most commonly found, In marshes and under rocks, but didn't find it, instead, we found small crabs in the nooks and crannies between the rocks.
Photo of my evidence.
Where we looked, wasn't exactly the habitat where this crab is usually found, but it was close enough.
Photo of my evidence.
This crab has not been found in Maine yet, and hopefully, it will not be found in Maine ever.
Species Observation: Species Looked For
Did you find it?: 
I think I did not find it
Scientific name:
Eriocheir sinensis
Common name:
Chinese mitten crab
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
N 43.561144 °
W -70.217528 °
Observation Site Information
A photo of our study site.
Coastal - Saltmarsh
Trip Information
Kettle Cove
Trip date: 
Thu, 2018-10-25 08:45
Town or city: 
Cape Elizabeth
Type of investigation: 
Species Survey
Time of low tide: 


Based on your pictures, where you looked could indeed be mitten crab habitat! Why do you think it's important to look for them even if they are currently not in Maine?