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This species has been observed on Reunion Island

Order : Cephalaspidea Superfamily : Philinoidea Family : Philinidae Distribution : Indo Pacific tropics Maximal size : 5 mm Abundance : Seldom if ever on the reef flat zone Species characteristics : Body elongate, uniformly red orange Head shield elongate, anteriorly rounded. Parapodia thick, well developed. Posterior shield elongate, folded caudal lobes, forming a posterior skirt that covers the mantle
	Showing species characteristics...	Photo Philibert Bidgrain Reunion, Etang salé lagoon, less 1 m,11 April 2011, size : 3-4 mm

See more about : Sightening and mating periods

Remarks :

Identification confirmed by Nathalie Yonow
    Synonymous : (according Worms)
               - No other name

Bibliographic data :

Eyes large, visible at anterior end of head.     There is an internal shell with a broad aperture and fine spiral striae that are not punctate.     It lays cream to pale orange, spherical egg masses that appear to be attached by an adhesive surface and hatch in 3-4 days in the laboratory.     Philine rubrata is a moderately common species found in rocky habitats as well as in Halimeda kanaloana beds. It occurs in moderately exposed to exposed areas at depths of 1-18 m     Etymology : The epithet rubrata refers to the uniformly reddish color of the body

Two other species of Philine have been recorded as having redddish pigment Philine rubra Bergh, 1905 from Indonesia and Philine caledonica Risbec, 1951
            - Philine rubra have only anatomicals differences with P. rubrata, but P. rubra was descripted from Indonesia
            - Philine caledonica body is covered with minute papillae, while it is entirely smooth in P. rubrata and P. rubrata has elongate caudal lobes, forming a posterior skirt around the mantle cavity, while in P. caledonica the caudal lobe are short and simple.

References :

Sea slug of Hawai : Philine rubrata

Publications :

Gosliner, T.M., (1988). The Philinacea (Mollusca: Gastropoda: Opisthobranchia) of Aldabra Atoll, with descriptions of five new species and a new genus. Bulletin of the Biological Society of Washington, 8 : 79-100, Figs 1-14.

Other photos of Philine rubrata :

Christophe Cadet Reunion, Etang salé lagoon, less 1 m,9 January 2018, size : 6 mm     An orange light brown specimen

Philibert Bidgrain Reunion, Etang salé lagoon, less 1 m,11 April 2011, size : 3-4 mm The second specimen found on the same day and the same area... Posterior shield elongate, folded caudal lobes, forming a posterior skirt (a) that covers the mantle