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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 (Chromodoris 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.
This species was posted on 19 May 2003 at these websites as Chromodoris rufomaculata Pease, 1871,
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 rufomaculatus as Chromodoris rufomaculata are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2017), published 4 December 2017, Goniobranchus rufomaculatus (Pease, 1871)
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Euctenidiacea/Goniobranchus_rufomaculatus.htm