An ocellate 'Phyllidia undula' from Red Sea

July 26, 2003
From: Chris Quinn

I saw this nudibranch/flatworm on the wreck of the Thistlegorm in the Red Sea at a depth of about 25m. Water temp was 24c, and the beast in question was about 2-3cm long.

Can anyone identify it?

Chris Quinn

chris.quinn@zoom.co.uk

Dear Chris,
This is Phyllidia ocellata. It is quite variable in colour and this Red Sea colour form has been considered to be a distinct species with the name Phyllidia undula, but if you look through the photos of this species on ther Forum you will see the colour forms merging into one another. In fact your animal in which the black patches on each side are breaking up into spots surrounded by a whitish ring is an excellent example of how this Red Sea form merges into those with spots and rings
Best wishes,
Bill Rudman

Rudman, W.B., 2003 (Jul 26). Comment on An ocellate 'Phyllidia undula' from Red Sea by Chris Quinn. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/10553

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Phyllidia ocellata

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