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

Order : Polycladida Suborder : Cotylea Superfamily : Pseudocerotoidea Family : Pseudocerotidae Distribution : Indo West Pacific Maximal size : 50 mm Abundance : Species characteristics : Background body colour velvety black Dorsal papillae short, tipped with yellow-orange, without pointed tips and ending prior to the margin Marginal band white
	Showing species characteristics...	Photo Sophie Darnis Reunion, Site des Douanes, Le Port, 12 m, 28 January 2007, size : 35 mm

See more about : Thysanozoon cf nigropapillosum variability in Southwest Indian ocean

Remarks :

For some specialists this kind of specimens correponded to Thysanozoon nigropapillosum
   Leslie Newman (2003) considered that this kind of specimens are incorrectly known as Thysanozoon nigropapillosus (Hyman, 1959) which was first described as black with white papillae and a yellow marginal band. So she called these specimens Thysanozoon sp1
   Hyman description (1959) :
            - It is black with a pale yellowish border.
            - The dorsal surface is covered with low rounded black papillae tipped with white, hence to the naked eye the dorsal surface appears black dotted with white

Bibliographic data :

Pseudotentacles square

References :

Discover life : Thysanozoon nigropapillosum
   Marine flatworms of the world : Thysanozoon nigropapillosum
   Nudipixel : Thysanozoon sp

Publications :

Faubel, (1984) : The Polycladida, Turbellaria. Proposal and establishment of a new system. Part II. The Cotylea . Mitteilungen des hamburgischen zoologischen Museums und Instituts 80. 189–259.
    Hyman, L.H. (1959). A further study of Micronesian polyclad flatworms. Proceedings of the United States National Museum 108: 543–597
    Newman, L.J. & Cannon, L.R.G. (2003). Marine Flatworms: the world of Polyclads. CSIRO Publishing : Melbourne 112 p

Other photos of Thysanozoon cf nigropapillosum :

Christophe Cadet Reunion, Etang salé, 13 m, 18 November 2008, size : 45 mm Dorsal papillae short, tipped with yellow-orange (a) , without pointed tips and ending prior to the margin

Marina Poddubetskaia Mayotte, "Passe Bandrélé", 8 m, 11 November 2003, size : 15 mm A juvenile form...

Matthias Deuss Mayotte, 18 July 2009 Flatworms of this genus have a papillate dorsal surface and a very ruffled margin.

Yvon Gildas Mayotte, 30 August 2008 In this specimem the dorsal papillae appeared pale yellow nearly whitish...

Philibert Bidgrain Réunion, Trou d'eau, less 1 m, 23 October 2010, size : 35-40 mm Crawling during the day on the substrate...

Alain-Benoît Rassat Madagascar, Nosy bé, 20 m, September According Alain-Benoît Rassat " Probably the most commun flatworm of Nosy bé..." Swimming on the sea...

Philippe Bourjon Réunion, less 1 m, La Saline, February 2016 Underside of the animal...

See more about : Thysanozoon cf nigropapillosum variability in Southwest Indian ocean

 Mayotte, Thysanozoon cf nigropapillosum, at Passe en S, by Florence Trentin

Mauritius, Thysanozoon cf nigropapillosum, at Flic-en-flac, by Pierre Conchylinet