09 Tonicella marmorea

09 Tonicella marmorea

.Sublittoral. Wester Ross, Scotland. November 2017. © C. Rickard.
Shell oriented with head valve i on right.
The shell colour is various combinations of white, cream, shades of brown, red and ochre arranged in blotches or intricate zig-zag lines. The keeled jugum and posterior beaks on valves ii to vii are well developed on this specimen. Frequently, but not always, approximately triangular patches on the jugal areas have lighter colours. Valves ii, iv and, less consistently, vii often have more dark colour than the other valves.

marinvert.senckenberg.science/image-browse/