|A close-up of the upper surface of the carapace.|
|The inner surface of the carapace.|
|Another view of the underside; this time some of the points of attachment for the mouthparts and related appendages. The basal segment of one such appendage remains - its pair shows an empty socket.|
|A close-up of one of the articulations on the underside of the carapace.|
|The V-shaped notch between the two rostral spines showing numerous bristles as well as the tiny holes where some are missing.|
|One mottled compound eye on its mobile stalk. This mobility means the eye can be tucked away into a notch in the carapace to prevent damage.|
|A close-up of the eye showing individual lenses and the 'seal' around the edge. Red and green iridescence is also visible just below the centre of the photo.|
|The base of the eye-stalk again showing the guard hairs which help to protect joints from damage by unwanted materials.|
Crothers, J. & Crothers, M. (1988). A key to the crabs and crab-like animals of British inshore waters. Field Studies 5: 753-806. Revised version available here.
Gibson, R., Hextall, B. & Rogers, A. (2001). Photographic Guide to the Sea & Shore Life of Britain & North-west Europe. OUP, Oxford.
Hayward, P.J. & Ryland, J.S. (eds) (2000). Handbook of the Marine Fauna of North-West Europe (reprint with corrections). OUP, Oxford.