Akademik

tiny soft-bodied crab living commensally in the mantles of certain bivalve mollusks

: a minute commensal crab of the family Pinnotheridae living in bivalve mollusks; especially : a European crab (Pinnotheres pisum) found in mussels and cockles and regarded as a great delicacy — compare oyster crab

any of several tiny crabs of the family Pinnotheridae, the female of which lives as a commensal in the shells of bivalve mollusks.

[1830-40]

pea crab,

any one of certain small crabs that live in the mantle cavities of certain mollusks.

n. another term for oyster crab