13 Goniodoris castanea

13 Goniodoris castanea

Some of the many translucent tubercles can be discerned on this specimen where they neatly coincide with the opaque white pigment flecks. The tripinnate structure of the thickset gills is more distinct than usual in the inset.
Sublittoral, Oosterschelde, Nederland. © S. Verheyen.