Corystes cassivelaunus

Masked crab, a reference photo
Photo: Hans Hillewaert · CC BY-SA 4.0 (licence)

Corystes cassivelaunus, the masked crab, helmet crab or sand crab, is a burrowing crab of the North Atlantic and North Sea from Portugal to Norway, which also occurs in the Mediterranean Sea. It may grow up to 4 centimetres or 1.6 inches long (carapace length). The name "masked crab" derives from the patterns on the carapace which resemble a human face (a case of pareidolia), in a similar manner to heikegani. It is the only species in the genus Corystes.

From Wikipedia, under CC BY-SA 4.0.

Is it venomous or poisonous?

We have no record of Masked crab being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Malacostraca
Order
Decapoda
Family
Corystidae
Species
Corystes cassivelaunus

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