Favorinus mirabilis feeding

November 24, 2009
From: Mirjam Broos

Dear Bill,

We found this nudibranchs while diving Lobster wall in Mabul. I guess they belong to the genus Favorinus. Can you help me out.

Locality: Mabul, Lobster wall, Sabah, Malaysia, 27 september 2009. Photographer: Geert Prast.

greetings,
Mirjam


mirjam.broos@planet.nl

Broos, M., 2009 (Nov 24) Favorinus mirabilis feeding. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22793

Dear Mirjam,

In an earlier set of messages from Marina Poddubetskaia [#11646] we discussed whether this large orange-red animal is a colour form of Favorinus mirabilis or not.  The only real difference has been the lack of a small purple spot just down from the tip of the cerata in most specimens. I have kept these 'spotless' animals separate as Favorinus cf. mirabilis but have always felt they were just large specimens of F. mirabilis. If you look carefully at your animals I can definitely see the purple spot on some cerata so am fairly confident that these are large Favorinus mirabilis Their colour is derived from the egg-ribbon they are feeding on food, which I suspect is that of Hexabranchus sanguineus.

Best wishes,
Bill Rudman

Rudman, W.B., 2009 (Nov 24). Comment on Favorinus mirabilis feeding by Mirjam Broos. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22793

Factsheet

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