A pair of Okenia purpurata

January 23, 2007
From: Leanne & David Atkinson

Hi Bill,
The Okenia purpurata and Okenia vena are still at Halifax Sponge Gardens. Here are some photos of Okenia purpurata pairs and an egg mass that was in the Amathia tortuosa. There was quite a few egg masses all at the end of the stalks. It could belong to either nudi or something else I guess. It seemed to be the right size for them.

Locality: Halifax Sponge Gardens,Marine Reserve, Port Stephens, 13 metres, New South Wales, Australia, Pacific, 21 January 2007, Sandy bottom with scattered sponges, ascidians, bryozoans and soft corals. Length: approximately 2 to 3 mm. Photographer: Leanne & David Atkinson.

Regards,
Leanne & David Atkinson

atk@hunterlink.net.au

Atkinson, L. & D., 2007 (Jan 23) A pair of Okenia purpurata. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19299

Dear Leanne & David,

I agree that these are most probably the egg masses of one of the Okenia species. I think I have photos of similar egg masses which were associated with the two species. I've included a close-up of the bryozoan as it shows the spiral arrangement of the zooids quite well.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (Jan 23). Comment on A pair of Okenia purpurata by Leanne & David Atkinson. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19299

Factsheet

Okenia purpurata

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