This species has been observed on Reunion and Madagascar Islands
Superfamily : Limapontioidea
Indo West Pacific
Maximal size : 5 mm
Abundance : From time to time on the rocky coast
Species characteristics :
This species has white pigment on the head and rhinophores and a black area just behing the rhinophore
The rhinophores are white
The cerata are transparent, with the green contents showing through the body wall and speckle with white and yellow tiny dots.
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Photo Nathalie Rodrigues
Reunion, 13 December 2015
See more about : Sightening and mating periods
Identification confirmed by Kathe Jensen
Bibliographic data :
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
Found in association with
Avrainvillea sp (green algae with a post like "stalk" and a flattened plate-like "leaf")
Costasiella sp. 1 (p79) in Nudibranch and Sea Slug Identification Gosliner, Valdés and Behrens 2015
Other photos of Costasiella sp. 2 :
Madagascar, Nosy bé
Reunion, Etang salé, on the rocky coast, less 1 m, 8 February 2013, size : 4-5 mm
Found in association with Avrainvillea sp (green algae with a post like "stalk" and a flattened plate-like "leaf")
Reunion, Etang Salé on the rocky coast, less 1 m, 3 April 2015, size : 4 mm
More photos from Indian Ocean
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