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Chromodoris colemani  Rudman, 1982

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There are many similar coloured chromodorids which Bill Rudman calls the "Chromodoris quadricolor colour group".
Chromodoris colemani can be distinguished by the orange lines running from the rhinophores to the gills. The mantle has an orange submarginal band.
The real Chromodoris colemani (as described by Rudman) has 5 black lines, have a look at the specimens from the Sunshine Coast, Queensland, Australia. The specimens from the Philippine Islands have usally only 3 black lines, some of them have 2 additional short black lines in front of the gills, that makes 5...This species might be a colour variant, it can be as well undescribed. I call it for now Chromodoris colemani.
Here are 2 specimens mating.
This picture shows a specimen of Chromodoris annae and a specimen of Chromodoris colemani in the mating position, but clearly NOT mating.
Pretty similar is Chromodoris cf. strigata which differs by dark translucent patches.
More information on Chromodoris colemani are on Bill Rudman's Sea-Slug Forum!
How to cite:
Köhler, E. (2017), published 28 February 2017, Chromodoris colemani  Rudman, 1982
available from https://www.Philippine-Sea-Slugs.com/Nudibranchia/Euctenidiacea/Chromodoris_colemani.htm