Re: Glossodoris rubroannulata from nthn New South Wales

August 31, 2007
From: Leanne & David Atkinson

Hi Bill,

Concerning your request for a higher resolution scan of the photo in our earlier message #15384, here is a higher resolution scan of the original photo we sent you plus another one that shows the area in front of the nudibranch from a different angle and a bit better light. They were photographed at Northwest Solitary Island in Northern NSW in September 2000 in approximately 10 metres. We also saw Hypselodoris jacksoni on the same dive. We must get back there sometime soon.
Hope these help,
Leanne & David Atkinson

atk@hunterlink.net.au

Atkinson, L.& D., 2007 (Aug 31) Re: Glossodoris rubroannulata from nthn New South Wales. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20604

Dear Leanne & David,
Thanks for your quick reponse.As I explained in my email to you, after getting Dave Mullins' feeding photo [#20602] yesterday, I thought it would be useful to see if we could squeeze any more information out of your earlier photo, as it was the only other indication we had on what G. rubroannulata ate.

Unfortunately I still can't be sure if it is a relatively smooth colony or a sculptured and conulose colony like in Dave Mullin's photo.  I had hoped the Ceratosoma amoena in the picture might have given us some useful clues because, as you suggested, it seems to be feeding as well. However C. amoena feeds on both a sculptured and conulose species of Dysidea and an unrelated, relatively smooth colony of the thorectid Semitaspongia. The only thing I can definitely say is that the colour of the sponge in your photos is quite similar to the one in Dave's, which unfortunately doesn't help that much. I guess this could be another reason to add to your list in favour of getting back up to the Solitary Islands.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Aug 31). Comment on Re: Glossodoris rubroannulata from nthn New South Wales by Leanne & David Atkinson. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/20604

Factsheet

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