Okenia hallucigenia from Bare Island, Sydney
May 9, 2005
From: R. Fea & J. Coombs
Note added 10 Dec. 2007: This species has been identified as Okenia atkinsonorum [see message #21273].
Dear Dr Rudman,
Could you identify this nudibranch from Bare Island please. It was taken at Bare Island Deep Wall (at about 15 m) and was no more than 5mm long. We thought it might have been a red-lined flabellina but we're not sure about it's uniform rosy appearance.
Locality: Bare Island, Botany Bay, Sydney, NSW, Australia. Depth: 6 m and 15 m. Length: 5 mm - 10 mm. 04 February 2005, 08 May 2005. Sponges, boulders. Photographer: Roxanne Fea
Many thanks,
Roxanne Fea & Jason Coombs
roxannef@mgnsw.org.au
Fea, R. & Coombs, J., 2005 (May 9) Okenia hallucigenia from Bare Island, Sydney. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/13723Dear Roxanne and Jason,
This is Okenia hallucigenia which is usually found on, or near, the pinkish red bryozoan colony, Pleurotoichus clathratus, on which it feeds. The reddish plant-like growth in your photo is the bryozoan.
Best wishes,
Bill Rudman
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