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This species has been observed on Reunion Island

Order : Sacoglossa Superfamily : Elysioidea Family : Elysiidae Distribution : South africa and Reunion Maximal size : 6 mm Abundance : Seldom if ever on the rocky coast. Species characteristics : The background colour of the body and parapodia ranges from translucent clear to greenish speckled and the parapodia have scattered black and white spots. Lobe parapodia with yellow dots on the margin The rhinophores have a brownish-pink band midway along their length and a white tip
	Showing species characteristics...	Photo Christophe Cadet Reunion, Etang salé, on the rocky coast, less 1 m, September 2010, size : 6 mm

See more about : Sightening and mating periods

Remarks :

Identification confirmed by Kathe Jensen
    According Kathe Jensen :" Your Elysia sp. 3 looks like the species labelled Elysia sp. 6 in Terry Gosliner's old book from South Africa (Elysia sp 8 in Gosliner, 2008), or the one called Elysia sp. 10 in the Sea Slug Forum "

Bibliographic data :

The lobes gradually diminshing in size from the front to the back
    The background colour of the body and parapodia ranges from translucent clear to greenish, probably dependent on the stage of the feeding cycle.
    This species is similar to Elysia lobata but has a distinctive color pattern. In Elysia lobata the rhinophores have a bluish tip and at the parapodial edge there is a broad translucent pinkish marginal band which has regularly spaced deeper pink patches

References :

Bill Rudman Seaslug site : Sea Slug Forum : Elysia sp 10
   Nudipixel Elysia sp

Publications :

Elysia sp 8 in : Gosliner,T.M.; Behrens,D.W.; Valdés,A (2008) Indo-pacific nudibranchs and seaslugs A field guide to the World's most diverse fauna

Other photos of Elysia sp3:

Philibert Bidgrain Reunion, Etang salé, on the rocky coast, less 1 m, 12 June 2010, size : 3 mm A small specimen with a pale coloration...

Christophe Cadet Reunion, Etang salé, on the rocky coast, less 1 m, 28 September 2009, size : 5 mm