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Pretty similar are:
Goniobranchus preciosus which has an outer blue line at the mantle margin.
Goniobranchus albonares which has white gills and relatively large white rhinophores.
It was posted on 04 Sept. 2003 at these websites as Chromodoris verrieri (Crosse, 1875) [Goniodoris],
I follow the recent article (published: 10 April 2012)
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
and move Chromodoris preciosa to the reerected ("rescued from synonymy") genus Goniobranchus Pease, 1866.
More information on Goniobranchus verrieri as Chromodoris verrieri are on Bill Rudman's Sea-Slug Forum!