Usually yellow with black spots, this unnamed species appears to be widespread throughout the Indo-West Pacific. In some cases, it can have a white background colour, and sometimes the black patches are replaced by scattered black caryophyllidia all over the mantle. It differs from Jorunna funebris in radular morphology and in having many more gills, and a large black spot or line on the posterior tip of the foot.
Source from http://www.seaslugforum.net/find/jorusp2