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@bigmail.co.il

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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