This species has been observed on Madagascar Island
Order : Nudibranchia
Suborder : Euctenidiacea
Superfamily : Doridoidea
Family : Chromodorididae
Distribution : Western Pacific, Kenya and Madagascar
Maximal size : 20 mm
Abundance : Seldom if ever...
Species characteristics :
The mantle is a pinkish purple becoming darker purple in front of the rhinophores and behind the gills
The mantle margin, which is slightly undulate, has a broad opaque white band
The rhinophores are edged with orange.
The gills are white with orange axes band.
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Photo Alain Benoît Rassat
Madagascar, Nosy Bé, patate de l'entrée, 7 m, 13 May 2016, size : 20 mm
See more about : Sightening and mating periods
Identification confirmed by Hsini Lin
Synonymous : (according Worms)
- No other name
Bibliographic data :
The most similar to Thorunna halourga is Thorunna punicea which has purple tipped rhinophores and gills, and Durvilledoris albofimbria, which externally has a much thinner white marginal band.
The name is derived from the Greek word, "halourgus", which means sea-purple, to draw attention to the animal deep purple body color.
Bill Rudman Seaslug site : Sea Slug Forum : Thorunna halourga
Nudipixel Thorunna halourga
Johnson, R.F. & Gosliner, T.M. 2001. Two new species of Thorunna Bergh 1878 (Mollusca: Nudibranchia: Chromodorididae) from the Indo-Pacific. Bollettino Malacologico ,37(5-8) : 143-150
Marshall, J.G. & Willan, R.C. 1999. Nudibranchs of Heron Island, Great Barrier Reef: a survey of the Opisthobranchia (Sea Slugs) of Heron and Wistari Reefs . Leiden, Backhuys Publishers. [as Thorunna sp. 1 ]
Other photos of Thorunna halourga :
More photos from Indian Ocean
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