Goniobranchus rufomaculatus (Pease, 1871) [Chromodoris]

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Goniobranchus rufomaculatus can be distinguished by a violet border to the mantle which is broken into into a series of spots or short lines. Inside the purple is a diffuse creamy-yellow band. The rhinophore clubs are dark brown or purple with white edging and the gills are translucent white with opaque white edging.
pretty similar are:
Goniobranchus collingwoodi which differs by its large central reddish / orange-brown patch, and irregular purple border of the mantle, then a broad region in which there are small yellow and larger purple spots.
Goniobranchus tennentana (Goniobranchus tennentana) which differs by its large central reddish / orange-brown patch, and bluish purple border of the mantle, the white region inside it has yellow spots. It has large purple spots each surrounded by a white ring restricted to the central patch.
Goniobranchus aureopurpureus which differs by its translucent purple or red-brown gills which are edged in white.
It was posted on 19 May 2003 at these websites as Chromodoris rufomaculata  Pease, 1871,
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 rufomaculata to the reerected ("rescued from synonymy") genus Goniobranchus  Pease, 1866.
More information on Goniobranchus rufomaculatus as Chromodoris rufomaculata are on Bill Rudman's Sea-Slug Forum!