Pleurobranchus grandis is characterised by its large elongate brown patches.
It is very variable in colour, ranging form almost completely dark brown to white.
This shot shows
a juvenile specimen.
As the name suggests is Pleurobranchus grandis a very large sea-slug: up
to 25 cm and more.
More informations on Pleurobranchus grandis are at
Bill Rudman's Sea-Slug Forum!
