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This species has been observed on Reunion, Mayotte and Madagascar Islands

Order : Polycladida Suborder : Cotylea Superfamily : Pseudocerotoidea Family : Pseudocerotidae Distribution : Indo West Pacific Maximal size : 70 mm Abundance : Species characteristics : Background body colour velvet black with bright orange and yellow transverse stripes and two median longitudinal yellow stripes separated by a thin black line. Marginal band wide, orange
	Showing species characteristics...	Photo Philibert Bidgrain Mayotte, Mtsanga Fanou, 2 m, 20 July 2008, size : 60 mm

See more about : Pseudoceros cf dimidiatus variability in Southwest Indian ocean

Remarks :

Some people considered this kind of specimen as colour variation of Pseudoceros dimidiatus. Other considered that they formed a different species... So for the moment, I called these kind of specimens : Pseudoceros cf dimidiatus
   In P. dimidiatus the background body colour is velvet black with two broad, longitudinal, bright yellow stripes joined posteriorly and in P. cf dimidiatus the background body colour velvet black with bright orange and yellow transverse stripes and one or two median longitudinal yellow stripe(s)
   All the specimens found in our area have two median longitudinal yellow stripes and not one like in other country.

Bibliographic data :

Pseudotentacles simple folds
   Habitat : Found on the reef slope, out and about during the day
   Ethymology : dimidiatus = halved a reference to the symmetrical pattern

References :

Discover life : Pseudoceros dimidiatus
   Marine flatworms of the world : Pseudoceros cf dimidiatus
   Nudipixel : Pseudoceros dimidiatus

Publications :

von Graff, L. (1893). p. 362 in Saville-Kent, W. (ed.) The Great Barrier Reef of Australia; its products and potentialities . W.H. Allen : London
    Newman, L.J. & Cannon, L.R.G. (2003). Marine Flatworms: the world of Polyclads. CSIRO Publishing : Melbourne 112

Other photos of Pseudoceros cf dimidiatus :

Christophe Cadet Reunion, Etang-Salé, 12 m, 18 November 2008, size : 50 mm A specimen with an important velvet black coloration on the body

Marina Poddubetskaia Mayotte, "Passe en S", buoy n° 6-7, 11 m, 15 November 2003, size : 15 mm A specimen with an important yellow coloration on the body

Matthias Deuss Mayotte, 30 August 2009 A specimen with two median longitudinal yellow stripes which can clearly be seen A wonderfull landscape....

Florence Trentin Mayotte, Passe en S, 5 August 2006, size : 6- 8 mm A very small specimen...

Eva Fontaine Mayotte, Mtsanga Tsoha, 5 m, 27 July 2008, size : 50 mm A lateral view...

See more about : Pseudoceros cf dimidiatus variability in Southwest Indian ocean

Reunion, Pseudoceros cf dimidiatus, at Saint Leu, by Emmanuel Eby  

Reunion, marginal tentacle of Pseudoceros cf dimidiatus, at Saint Paul, by Franck Faria  

Madagascar, Pseudoceros cf dimidiatus, at Nosy bé, by Alain-Benoît Rassat