Costasiella sp. 3

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This species has been observed on Madagascar Island

Order : Sacoglossa
Superfamily : Limapontioidea
Family : Costasiellidae
Distribution : Indo West Pacific
Maximal size : 12 mm
Abundance :

Species characteristics :

The cerata are transparent, with the green speckled contents showing through the body wall and have a intense blue tip

The base of the rhinophore is transparent and the tip is intense blue like the cerata tips

The notum is white except the two black eyes...


costasiella kuroshimae
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Photo Pirjot Pellet
Madagascar, between Anemone North and South, 12 m, 1 December 2015 , size : 8 mm

See more about : Sightening and mating periods

Remarks :

Identification confirmed by Kathe Jensen
    Looks like Costasiella sp. 7 in "Nudibranch and Sea Slug identification from Indo Pacific, Gosliner, Valdés and Behrens, 2015"

Bibliographic data :

Found in association with Avrainvillea sp (green algae with a post like "stalk" and a flattened plate-like "leaf")
    This species is similar with Costasiella kuroshimae by C. kuroshimae differs by :
           - The head has a broad brownish band from the rhinophores to the mouth, and their is a second brown patch from the rhinophores back towards the pericardium.
           - The upper half or the tips of the white rhinophores are black

References :

Bill Rudman Seaslug site : Sea Slug Forum : Costasiella sp. 3
   Bali Seaslug Costasiella sp.

Publications :

Costasiella sp. 7 in Nudibranch and Sea Slug Identification Gosliner, Valdés and Behrens 2015

Other photos of Costasiella sp. 3:

 More photos from Indian Ocean

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