O.F. Müller, 1785
Carapace densely pitted, shallow radial fossae relatively conspicuous. Detailed shape of distal processes of male copulatory appendages characteristic (C. lutea 8 ). Colour reddish brown to buff, with bright yellow appendages.
A phytal species commonly inhabiting the littoral and shallow sublittoral zones, usually found in normal marine conditions but occasionally encountered in the outer reaches of estuaries.
Widespread around the coasts of Britain and from S Norway in the north to the Atlantic coast of France in the south.