1: posterior half of foot translucent whitish dorsally; opaque white peripherally. 2: tapered tip of whitish penis. Penis attached behind right tentacle on males; very long so able to protrude on left, as in this image. 3: broad, dark, transverse band to anterior of mid-point of foot dorsally, sometimes extends part-way onto sole (see image ). 4: anterior of foot translucent, shows opaque white anterior pedal gland. H. 3.2 mm Llŷn, Wales. March 2015.

marinvert.senckenberg.science/image-browse/