This animal looks like Chromodoris strigata and has following characteristics :
- the mantle forms a sequence of white and black bands, and it is bordered with yellow (like in Chromodoris strigata)
- but, the outer black band surrounds wholly the mantle, while it is hardly broken in C. strigata
- the upper half of the rhinophores is yellow and the lower half is translucent
- the rhinophores pockets are bordered with yellow (different from Chromodoris strigata)
- the upper half of the gills is yellow and the lower half is white, and it is completely different from C. strigata gills

Probably, this animal is an unnamed species. In the meantime, I will call it Chromodoris cf. strigata.

African Indian Ocean