December 15, 2003
From: Marina Poddubetskaia
As you can see in the photos both typical Favorinus mirabilis and Favorinus cf. mirabilis were found together. And they really look like two distinct species.
• Favorinus cf. mirabilis can be twice larger in length than Favorinus mirabilis
• the coloration of the body, cerata and rhinophores is very different too
Also, I've seen an egg-mass on this ribbon (visible in centre right photo), but it is impossible to say to which variant / species it belongs to.
Date: November 14, 2003
Location: Mayotte Island, Indian Ocean
Poddubetskaia, M., 2003 (Dec 15) Favorinus mirabilis and Favorinus cf. mirabilis. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11646
I have added some close-ups of your egg ribbon photo to show some of the interesting features.
Upper Right Photo: In the lower left corner we can see 2 small pale F. mirabilis and a large orange F. cf. mirabilis. In the upper right quarter of the photo, parts of 2 or perhaps 3 other specimens of F. cf. mirabilis can be seen nestled in the egg ribbon which they are eating. All over the ribbon cavities sowing eaten out bits of the ribbon are clearly visible.
Centre Left Photo: Showing size difference between the two species
Centre Right Photo: Unidentified white egg ribbon in upper right of photo. Probably from one of these 2 species of Favorinus
Favorinus mirabilis feeding
From: Mirjam Broos, November 24, 2009
Re: Favorinus mirabilis from Red Sea
From: Binyamin Koretz, March 17, 2008
Favorinus mirabilis from Moorea
From: Seabird McKeon, July 8, 2006
Favorinus mirabilis from Singapore
From: Lim Han Peng, April 23, 2005
Favorinus? from Red Sea
From: Oren Lederman, March 5, 2005
Favorinus mirabilis from Mayotte
From: Marina Poddubetskaia, December 15, 2003
Favorinus mirabilis from Guam
From: C. Carlson & P. J. Hoff , December 9, 1999
Re: About Favorinus mirabilis
From: Scott Johnson, December 5, 1999
About Favorinus mirabilis
From: Francisco J. García, December 3, 1999
Favorinus from Japan
From: Rie Nakano, November 25, 1999