Palio dubia (M. Sars, 1829)
No black (apparent dark green) surface pigment. Pale, narrow-based tubercles do not break the translucent, pale greenish-yellow body (left) into an ocellated network. 12 or 13 closely packed lamellae on rhinophore. Some have generally blackish translucent flesh (right), but not blotched surface pigment.
Sublittoral. Northumbria, England. August 2015. © P. Lightfoot.
Sublittoral, Lillebælt, Denmark. March 2022. © H. Jensen