February 27, 2000
From: Lindsay Warren
This unidentified aeolid was found by Richard Smith at 3.30pm on 4 June 1999 at a depth of 8.5 m on dead coral on a wall of Pulau Hoga [Tukang Besi Archipelago, SE Sulawesi, Indonesia - Operation Wallacea]. Size: 5 mm.
The body is translucent off-white with distinct solid white patches on the notum behind the rhinophores. The first patch is triangular in shape, the second Y shaped followed by two to three other irregular patches towards the finely tapering tail. The cerata on either side of the body are
curled inwards, are pink with white nobs along their length. The rhinophores are annulate with eyespots just visible behind them. There are two sets of anterior tentacles - an upper longer pair tipped with white and a lower shorter pair not visible in the attached shots. Photos: Lindsay Warren.
Do you know what this might be?
All the best
email@example.comWarren, L., 2000 (Feb 27) Favorinus japonicus from Sulawesi. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1965
Nice to have an easy one now and again. This is Favorinus japonicus which is found throughout the Indo-West Pacific. As you will see fro other comments on the page this is animal feeds on opisthobranch eggs and its cerata gradually change colour as the colour of the eggs it is eating change.
Favorinus japonicus from Reunion Island
From: Hugues Flodrops, March 31, 2009
Favorinus japonicus on Hexabranchus eggs
From: Colin Ogden, September 25, 2007
More photos of Favorinus japonicus
From: Dong Bum Koh, May 10, 2005
Favorinus japonicus and F. tsuruganus together
From: Dong Bum Koh, May 3, 2005
Re: Favorinus eating Hexabranchus eggs
From: Yves Coze, December 1, 2003
Favorinus? from Zushi, Japan
From: Akira Kurabayashi, November 16, 2003
Favorinus eating Hexabranchus eggs
From: Yves Coze, September 5, 2003
Favorinus on Hexabranchus eggs
From: Rokus Groeneveld, July 12, 2003
Re: Favorinus japonicus secondary metabolites
From: Jennifer Sneed, March 8, 2002
Favorinus japonicus secondary metabolites
From: Jennifer Sneed, March 6, 2002
Favorinus japonicus from Heron Island
From: Julie Marshall, March 5, 2000
Egg Predation - Favorinus japonicus
From: Bill Rudman, April 25, 1998