Miamira magnifica  Eliot, 1910

Class: Gastropoda  Cuvier, 1797
Subclass: Heterobranchia  J.E. Gray, 1840
Clade: Euthyneura  Spengel, 1881
Superorder: Nudipleura  Wägele & Willan, 2000
Order: Nudibranchia  Cuvier, 1817
Suborder: Euctenidiacea  Tardy, 1970
Infraorder: Doridacea  Thiele, 1931
Superfamily: Doridoidea  Rafinesque, 1815
Family: Chromodorididae  Bergh, 1891
Genus: Miamira  Bergh, 1874
Species: Miamira magnifica  Eliot, 1910

At this website discusses Bill Rudman "Is Ceratosoma magnifica (Eliot, 1910) a good species?" 
He writes there are Ceratosoma sinuata (van Hasselt, 1824) and Ceratosoma flavicostatum (Baba, 1940) identifiable,
but "Eliot's description fits neither of these species well."
The pictures from the Red Sea and from South Africa are surely not Ceratosoma sinuata, they lack the opaque white spots at the gills and rhinophores nor Ceratosoma flavicostatum, Bill Rudman writes: "It certainly does fit Eliot's animal very well."

Previously placed in:
Class: GASTROPODA  Cuvier, 1797
Subclass: OPISTHOBRANCHIA  Milne-Edwards, 1848
Order: NUDIBRANCHIA  Cuvier, 1817

The presently accepted taxonomy of the Gastropoda is the revision of Bouchet & Rocroi (2005).

This species was originally posted at these websites as Ceratosoma magnificum (Eliot, 1910) [Miamira],
R.F. Johnson & Gosliner (2012) moved it to the reerected ("rescued from synonymy") genus Miamira  Bergh, 1875.
Bouchet P., Rocroi J.-P., Frýda J., Hausdorf B., Ponder W., Valdés Á. & Warén A. (2005).
"Classification and nomenclator of gastropod families".
Malacologia: International Journal of Malacology (Hackenheim, Germany: ConchBooks) 47 (1-2): 1-397.
ISBN 3925919724. ISSN 0076-2997.
Rebecca Fay Johnson & Terrence M. Gosliner. 2012.
Traditional Taxonomic Groupings Mask Evolutionary History:
A Molecular Phylogeny and New Classification of the Chromodorid Nudibranchs.
online at

thumbnail-selection of
Miamira magnifica

Indian Ocean

Indian Ocean