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Goniobranchus sp. 01  Genus: Pease, 1866

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Goniobranchus sp. 01 can be distinguished by the whitish-tan gills and rhinophores, by the purple mantle margin, and the general body colour pattern. This species is one of few species which lifts the whole of the mantle edge at the same time, like Goniobranchus coi and Goniobranchus kuniei, other species flap only the anterior mantle skirt up and down, that are Goniobranchus geometricus and Goniobranchus hintuanensis.
This species was posted on 23 May 2003 at these websites as Chromodoris sp. A  Genus: Alder & Hancock, 1855,
on 28 July 2011 changed into Chromodoris sp. 01  Genus: Alder & Hancock, 1855,
for some genera was the alphabet almost through. I had to change the distinguishing alphabetic character into a number. I had chosen 2-digit numbers, even though '01' looks a little bit stupid, and now is only the genus italic written.
R.F. Johnson & Gosliner (2012) moved it to the reerected ("rescued from synonymy") genus Goniobranchus  Pease, 1866, on which Rebecca and Terry state: "This clade includes all of the Indo-Pacific species of Chromodoris that are not part of the black-lined, planar egg mass clade,
except Chromodoris alternata and Chromodoris ambiguus."
Reference:
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
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0033479
More information on Goniobranchus sp. 01 as Chromodoris sp. 13 are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2017), published 8 May 2017, Goniobranchus sp. 01  Genus: Pease, 1866
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Euctenidiacea/Goniobranchus_sp_01.htm