Favorinus? from Red Sea

March 5, 2005
From: Oren Lederman

Note added 14 March 2008: This is Favorinus mirabilis - see message #21432.

Hi Bill,
Here's another one we couldn't identify. The photos of two animals were taken during a night dive, and the photo of the single animal was taken during a early morning dive.

Locality: Near the "Yetush" shipreck ,Eilat Bay, Israel, Red Sea. Depth: ~22 m. Length: 0.5 cm. 18 Feb 2005. Photographer: Oren Lederman

In some photos you can clearly see the "front" of one of them. Notice the double "horns" and yellow line between them.
Oren Lederman



Lederman, O., 2005 (Mar 5) Favorinus? from Red Sea. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/13273

Dear Oren,
This is quite interesting. It is an aeolid nudibranch and the distinctive colours of the head tentacles [rhinophores, oral tentacles], and the yellow median line on the head are very distinctive. I can't think of a species with that colour pattern so you may have found an unnamed animal. From its general shape I wouldn't be surprised if it was a species of the egg-eating genus Favorinus. Another point in favour of that idea is that species of Favorinus are quite often found in such habitat, crawling around in tangled algal beds, I suspect because it is a good place for other nudibranchs to lay their egg ribbons.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Mar 5). Comment on Favorinus? from Red Sea by Oren Lederman. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/13273

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