Aquatic Invertebrates - native

Striped Shore Crab (Pachygrapsus crassipes) on May 16, 2018

Originally reported as European Green Crab (Carcinus maenas)

Submitter does not have a specimen
EDRR Status: No Response/Action Required

Description of specimen

I am not an expert but looks like European Green Crab approx. 2.5 inches in size. Photos attached

Commentary

Hello and thank you for your report! It's true that this crab has a green cast, but it is a native, striped shore crab (see https://www.inaturalist.org/taxa/47188-Pachygrapsus-crassipes/browse_photos for lots of photos- they can vary a lot). European Green Crabs have five spines on each side of their heads - here is another resource for comparision, http://www.adfg.alaska.gov/static/species/nonnative/invasive/pdfs/crabs_identification_guide_sea_grant_oregon.pdf. Thanks again for checking with us!

Lindsey Wise
May 17, 2018, 10:15 a.m.