Order : Cephalaspidea
Superfamily : Philinoidea
Family : Gastropteridae
Distribution : Originally described from Guam, this animal is now known from many parts of the tropical western Pacific
Maximal size : 20 mm
Abundance : Frequently on the reef flat zone and the fore reef zone

The prominent dorsal hump is partially enclosed by the parapodia, but the translucent gills are visible. They look like wingy expansions forming three wide folds when resting
    Also diagnostic is the upturned and greatly extended posterior end of the cephalic shield.
   The mantle is blue-green with area surrounding by a dense black line
   The colour of these area varies from cream to grey in the center to orange to yellow on the fringe
   A wide cream to yellowish band around the mantle edge.

Olivier Fournaloux

Madagascar, 7 m, size : 25 mm, 18 October 2018

Philippe Bourjon

Reunion, March 2018

Pattern diversity of the sole...

Philippe Bourjon

Reunion, March 2018

Being stressed, this animal leaves a trail of white mucus (a) on the substrate. The musus made by mantle glands.

Philibert Bidgrain

Reunion, Etang Salé lagoon, less 1 m, 25 September 2004, Size : 10 to 15 mm

Specimen laying these eggs, during the day, under dead coral.

In this photo you can observe a filament with little white eggs...

Two other specimen ( 5-10 mm and 15-20 mm) have been observed in November...in the same lagoon

Fabrice Schubert

Mayotte, Sakouli, 4m, 20 November 2009, size : 30 mm

In this specimen, the wingy expansions forming three wide folds when resting, are mottled with black and yellowish (a)

The tip of the siphon (b) is bright red in pacific specimen, even in juveniles, but this red pigment is absent in the individuals from Réunion.

Philibert Bidgrain

The black spot is the eye. Quite a few species, like S. psychedelicum , have a semitransparent or translucent patch above each of the eyes so some light can get through.

Reunion, Etang Salé lagoon (11 November 2004) Size : 20-25 mm

Florence Trentin

Reunion, Etang Salé lagoon (01 January 2005)

Size :15 to 20 mm

Specimen laying its eggs, during the day, under dead coral.

In this photo you can observe a filament with little white eggs...

Reunion, Etang Salé lagoon (01 January 2005)

Size : 20 to 25 mm

This specimen crawling on the substrate

Emmanuel Eby

Reunion, Saint Leu, a specimen found during a dive, size 15 mm, 16 October 2004

Jérôme Clotagatide

Reunion, L'abri côtier (Bassin pirogue), Etang-Salé, less 1 m, 29 September 2009, size : 13 mm

Wingy expansions forming three wide folds when resting are well developed in this specimen.

Christophe Cadet

Reunion, Etang Salé lagoon, less 1 m, 24 January 2011, size : 13 mm

The internal side of the parapodia (a) with large black marking...