Chromodoris africana and 'look alikes'

Dear Valda,
I'm afraid the chromodorids confuse most of us. No sooner do you think you have them sorted out than another colour pattern pops up! My comments on your three animals are:

UPPER RIGHT: Chromodoris africana.

LOWER LEFT: I'll put it with the Chromodoris cf. africana group but I think it may be different. It also has similarities in colour to C. striatella and C. lineolata.

LOWER RIGHT: C. strigata.

I have copied relevant parts of your message to the other relevant pages and added some comments. In general, if these species are relatively common it would be great to get some photos of them on their food sponges and of their egg ribbons to see how they differ. I realise determining which sponges are being eaten is not always easy, but if you inevitably find a species on or at the edge of the same sponge species its probably a pretty good indication. Similarly with identifying who laid an egg mass - the only sure way in the field is to catch them being laid.

Thanks for the great photos and interesting animals.

Best wishes,
Bill Rudman