A giant sheep crab carapace washed up in South Marsh. Probably the biggest crab you’ve ever seen!

Connie and Kerstin found it washed up in South Marsh of Elkhorn Slough, but no doubt in life it lived offshore.

Rikke keyed it out as a sheep crab, Loxorhynchus grandis. Below is a link to a bit of information on this species from the MB Aquarium’s website.