Paraplanocera marginata    Meyer, 1922

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This species has been observed on Reunion Island


Order : Polycladida
Suborder : Acotylea
Superfamily : Stylochoidea
Family : Planoceridae
Distribution : Indo West Pacific
Maximal size : 40 mm
Abundance :


Species characteristics :

Body rounded with a crenulated margin, translucent, light brown to darker brown, lighter medially with irregular white spots and dots forming a reticulated pattern near the margin

Margin white, interrupted with purple and yellow-orange

paraplanocera marginata
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Photo Philibert Bidgrain
Reunion, Etang salé on the rocky coast, less 1 m, 9 August 2006, size : 40 mm

Remarks :

The margin appeared white or fade blue depending on the light
   The margin is formed from outside to inside
      - A white band (a)
      - A inner thin dark purple (b) continue or interrupted band
      - And an large brown to orange band with transverse white stripes (c)

Bibliographic data :

Pharynx situated medially, large, ruffled
   Head tentacles conspicuous, ringed by numerous eyes at base, eyes also at tips
   Cerebral eyes in distinct clusters
   Habitat : Found inshore, under rocks
   Ethymology : Marginata = border for its distinctive margin

References :

Marine life guide from Hawaii : Paraplanocera marginata

Publications :

Faubel, A. (1983). The Polycladida, Turbellaria. Proposal and establishment of a new system. Part I. The Acotylea . Mitteilungen aus dem Hamburgischen zoologischen Museum und Institut 80: 17121
    Meyer, F. (1922). Polycladen von Koseir (Rotes Meer.) (Kollektion Professor Klunzinger). Archiv für Naturgeschichte Abt. A. 87, Heft 10: 138158
    Newman, L.J. & Cannon, L.R.G. (2003). Marine Flatworms: the world of Polyclads. CSIRO Publishing : Melbourne 112
    Poulter, J.L. (1987). Phylum Platyhelminthes. Chapter 1, Section 2 & 3. pp. 1358 in Devaney, D.M. & Eldredge, L.C. (eds) Reef and Shore Fauna of Hawaii . Bishop Museum Press : Hawaii
    Schmarda, L.K. (1859). Neue wirbellosen Thiere beobachtet und gesammelt auf einer Reise um die Erde 1853 bis 1857. Bd. I. Turbellarien, Rotatorien und Anneliden. 1. Hälfte. W. Engelmann : Leipzig

Other photos of Paraplanocera marginata :


 

 

Philibert Bidgrain

Reunion, L'Hermitage lagoon, less 1 m, 20 November 2010, size : 60 mm

A light brown specimen.

Margin white (a)


Christophe Cadet

Reunion, Etang salé lagoon, less 1 m, 12 December 2009, size : 18 mm

Detail of the margin


 More photos from Indian Ocean