More Halgerda wasinensis pics from Mozambique.

March 1, 2005
From: Riaan Marx


Dear Dr. Rudman,

I photographed these nudis, Halgerda wasinensis, in very close proximity. They were however moving away from each other, so I did not stick arround.

These pics again illustrate the wider yellow and more rounded black pattern found here in these parts of the world

Locality: Ponta Malongane, Mozambique. Indian Ocean. Depth: 13 m. Length: 20 mm and 25 mm. 9 February 2005. Sandy/shelly area on rocky reef. Photographer: Riaan Marx

Regards,
Riaan Marx

v-riaanm@microsoft.com

Marx, R., 2005 (Mar 1) More Halgerda wasinensis pics from Mozambique.. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/13237

Dear Riaan,
As I said in my comment on your photo of two H. wasinensis, of the typical dark colour form, mating [#13236], it would very interesting to see some interaction between that colour form and this colour form. I suspect this is also H. wasinensis, but it has fewer ridges, and the yellow lines are much broader. We still have a lot to learn about the biology of these animals. It would be good to know if they feed on the same sponges, whether their egg ribbons are the same etc, etc. Perhaps in Mozambique you will find a mixing of the 'typical' tropical form and this colour form which seems restricted to subtropical southern Africa.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Mar 1). Comment on More Halgerda wasinensis pics from Mozambique. by Riaan Marx. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/13237

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