Black mantle over visceral hump (1) and blackish mantle over nuchal cavity (2) correspond with amphora area of the shell. Muscle bundles forming pedal retractor muscle (3) leave horseshoe shaped myostracum scar around the amphora area of the shell. Front edge (4) of mantle covering nuchal cavity leaves the anterior mantle attachment scar. Pallial tentacles (5) and mantle-skirt (6)are translucent pale buff or whitish. Dissected dorsal view and live lateral view, Anglesey, Wales, March 2014.