Last Moment of Mrs. Crabby

This was a little crab I found on the shore today. Sadly she was not alive anymore but I thought I should take a picture as a memorial. I was going to take Mrs. Crabby home with me but I figured she would have wanted to stay at her home, so I placed her back in the sand.
Does anyone know what kind of crab she is? If you do, would you let me know?
Thanks!