This looks like another example of whatSun, Alex and Gustav
nominated as a '...putative argus-vitiensis hybrid with
vitiensis background colour and ocellar spots similar to
argus'. This is in their 2013 paper in the Zoological Journal of the
Linnean Society (Colour, confusion, and crossing: resolution of species problems
in Bohadschia (Echinodermata: Holothuroidea).
I just received this photo (without sample nor spicules) from Mauritius, I
believe it is a Bohadschia, but which species please?
Best regards from Paris