This species has been observed on Reunion, Mayotte and Madagascar Islands
Order : Polycladida
Suborder : Cotylea
Superfamily : Pseudocerotoidea
Family : Pseudocerotidae
Distribution : Mayotte and Reunion Islands
Maximal size :
Abundance :
Species characteristics :
Background body colour cream-white with three marginal bands : inner band narrow black, then orange and transludide white or cream
Presence of a black external marginal band rather than cream on the pseudotentacles
Absence of white median longitudinal stripe.
Presence in some specimens of irregular white raised spots |
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Showing species characteristics... |
Photo Eva Fontaine
Mayotte, mtsanga Mboueanatsa, less 1 m, 4 August 2008, size : 10 mm
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Remarks :
These specimens present some differences with Pseudoceros confusus, it could be undescribed variations of this species or a new species, so for the moment we called this "species" Pseudoceros cf confusus
Bibliographic data :
Pseudotentacles simple folds
Easely confused with : Pseudoceros confusus, Pseudoceros bimarginatus, Pseudoceros contrarius and Pseudoceros intermittus but there are obvious differences
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P. cf confusus |
P. confusus |
P. bimarginatus |
P. intermittus |
P. contrarius |
Marginal band coloration from inside to outside |
Black, orange and white or cream |
(White), black, orange, black and yellow or white |
White, orange, black and yellow |
Orange, black and yellow |
Yellow, black and orange |
Median longitudinal stripe |
No |
White |
Yellow |
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No black triangle between the pseudotentacles |
Black triangle with a white spot between the pseudotentacles |
Black triangle between the pseudotentacles |
Habitat : Found under rubble on the reef crest
References :
Publications :
Newman, L.J. & Cannon, L.R.G. (1995). Colour pattern variation in the tropical flatworm, Pseudoceros (Platyhelminthes, Polycladida). Raffles Bulletin of Zoology 43: 435–446
Newman, L.J. & Cannon, L.R.G. (2003). Marine Flatworms: the world of Polyclads. CSIRO Publishing : Melbourne 112
Other photos of Pseudoceros cf confusus :
Matthias Deuss
Mayotte, 4 August 2009
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Christophe Cadet
Reunion, Etang salé on the rocky coast, less 1 m, 9 February 2010.
Presence in some specimens of numerous irregular white raised spots (a)
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Christophe Cadet
Reunion, Etang salé on the rocky coast, less 1 m, 28 September 2009.
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Eva Fontaine
Mayotte, Mbouanatsa, less 1 m, 29 July 2010, size : 13-15 mm
Presence in some specimens of numerous irregular white raised spots |
Alexandre Laporte
Madagascar, Antafondro Lodge, Sainte Marie, less 1 m, 1 September 2017,
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More photos from Indian Ocean
Mayotte, Pseudoceros cf confusus without white raised spot, at Mbouanatsa, by Philibert Bidgrain
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