Goniobranchus preciosus (Kelaart, 1858) [Doris]

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Goniobranchus preciosus is characterized by a white mantle with an outer pale blue, then brownish red and an inner orange/yellow border. The gills and rhinophore clubs are translucent red with pigmented white edging to the lamellae. The mantle can be clear white or can have a lot of small brown patches. This shot shows 2 specimens mating.
Pretty similar are:
Goniobranchus verrieri which lacks the outer blue line,
Goniobranchus albonares which differs by white gills and relatively large white rhinophores, and by an orange marginal band
Goniobranchus sinensis which differs by dark red to black gills and rhinophores, and
Goniobranchus trimarginatus which differs by white gills and rhinophores.
This species was posted on 12 August 2003 at these websites as Chromodoris preciosa (Kelaart, 1858) [Doris],
R.F. Johnson & Gosliner (2012) moved it to the reerected ("rescued from synonymy") genus Goniobranchus  Pease, 1866.
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
More information on Goniobranchus preciosus as Chromodoris preciosa are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2017), published 5 May 2017, Goniobranchus preciosus (Kelaart, 1858)
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Doridina/Goniobranchus_preciosus.htm


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