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"An interesting white polyclad, its head fades from brown to purple. it has a blue margin, and three long narrow longitudinal marks down the center of the body. These markings are composed of purple to maroon specks which are most dense at their margin."
Pictures of this species are/were at several websites:
at www.guamreeflife.com, as Pseudoceros cf. sp. 13 (as depicted in Newman and Cannon, 2003, 2005)
at www.starfish.ch, as Flatworm - Pseudoceros sp 6 - Strudelwurm / Plattwurm,
at poppe-images, as Pseudoceros sp 003, and
at nudipixel as Unidentified polyclad flatworm from:
Raja Ampat, Indonesia,
and two pictures from Palau.
The website nudipixel is down, the pictures are gone.
This species was posted on 31 August 2014 at theses websites as Pseudoceros sp. 05 Genus: Lang, 1884. I identified it using the facebook group
Marine flatworms and changed it on 28 February 2020 into Pseudoceros rubrotentaculatus Kaburaki, 1923.
Gosliner, T.M., Behrens, D.W. & Williams, G.C. (1997) Coral Reef Animals of the Indo-Pacific. 314pp.
Monterey, California: Sea Challengers.
How to cite:
Köhler, E. (2020), published 28 March 2020, Pseudoceros rubrotentaculatus Kaburaki, 1923
available from https://www.Philippine-Sea-Slugs.com/Look-alike/Platyhelminthes/Pseudoceros_rubrotentaculatus/Select.htm