Invasive SpeciesGreen crab

Carcinus maenas
FOUND by fiery
ID Confirmed
Quality checked by Kylie M
Peer reviewed by
Field Notes
I am happy because I am outside exploring the beach. I see, hear, and smell the ocean. I am surprised that I found such a small green crab because I thought crabs were red and big. Questions and problems I ran into were places to find crabs because I couldn't seem to find many.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
The crab was green and it had a pentagon shaped shell. It has five spines on each side.
Photo of my evidence.
It has five spines on each side.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Carcinus maenas
Common name:
Green crab
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
N 44.428500 °
W -69.003600 °
Observation Site Information
A photo of our study site.
Coastal - Rocky intertidal
Trip Information
Belfast Maine Boat Waterfront II
Trip date: 
Thu, 2016-12-08 13:22
Town or city: 
Type of investigation: 
Species Survey
Time of low tide: 
Thu, 2016-12-08 11:06


Yes! Nice evidence used for making your identification.
Regarding the size of your crab - remember all living things start as babies!