Liocarcinus navigator

Liocarcinus navigator is a species of crab in the family Portunidae.

Distribution
This species is found chiefly around the British Isles; its range covers the north-east Atlantic Ocean, including the North Sea as far north as Trøndelag in Norway, and as far south as Mauritania, and it also occurs in the Mediterranean Sea.

Description
Liocarcinus navigator has a dark brown carapace up to approximately 33 mm wide, with lighter pereiopods. The frontal margin of the carapace, between the eyes, has a fringe of hair but no spines.

Subspecies
Two subspecies are recognised:
 * Liocarcinus navigator rondeletii (Risso, 1816)
 * Liocarcinus navigator navigator (Herbst, 1794)