Cuthona from Heron Island

April 12, 2002
From: Julie Marshall

Dear Bill,
I have found this beautiful little aeolid twice at Heron Island [Great Barrier Reef]. The first animal, which we illustrated in our book as Cuthona sp. 6, was only 3 mm in size and had a wide mauvish brown band extending down each side of the body. The other specimen, which I found on my most recent trip to Heron Island last month, [March 2002] was almost twice as large (at 5 mm) but its band was bright blue! In all other external features it was the same as the 3 mm animal. Both animals were found under dead coral slabs at the reef crest.
Best wishes
Julie Marshall

Marshall, J., 2002 (Apr 12) Cuthona from Heron Island. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Julie,
I don't recall seeing this beautiful little species before. By coincidence I will call it Cuthona sp. 6 on the Forum as well.
Best wishes,
Bill Rudman


Cuthona sp. 6

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