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Project Noah Nature School
Carcinus maenas
little greenish crab about an inch wide
near the rocks in a tide pool
There are better images with some other references with how to ID this invasive species:
http://wdfw.wa.gov/ais/carcinus_maenas/
http://eol.org/pages/128502/overview
You can see most of the identifiers in your image. Five spines on the sides. Three rounded lobes between the eyes, triangular shape to carapace, no swimming paddles on the last pair of legs.
Spotted on Jun 1, 2013
Submitted on Jun 4, 2013
+1
