Pseudocerotidae sp. 18  Family: Lang, 1884

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I had been scanning through all websites on MARINE FLATWORMS, but found only one somehow a similar species: Pseudocerotidae sp. 07 at these websites, maybe there are some pictures at NUDIPIXEL within the -as of 21 October 2012- 632 Unidentified polyclad flatworm pictures.
I label it Pseudocerotidae sp. 18, because my best guess is that it should be placed in the family Pseudocerotidae  Lang, 1884.
It is characterized by its olive-green background colour. It is in the middorsal region densely covered with minute white spots, ging the appearance of a broad olive submarginal band, and has a dark brown/black marginal band.