Okenia mija from Bare Island, Sydney

September 17, 2005
From: Nicholas Missenden

Hello Bill,

Could you please identify this nudibranch for me.
I believe it is some form of Okenia possibly Okenia zoobotryon.

Locality: South Wall, Bare Island, Sydney. Botany Bay, NSW, Australia. Depth: 11 m. Length: 15 mm.10 September, 2005. Broken reef, sandy bottom. Photographer: Nicholas Missenden

Regards
Nick

njmpm@iinet.net.au

Missenden, N.J., 2005 (Sep 17) Okenia mija from Bare Island, Sydney. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14768

Dear Nick,
This is Okenia mija. These little brown species of Okenia are difficult to identify but the little brown spots usually have a translucent ring around them in this species. We don't know a lot about the biology of these species but I suspect we will find that many of them feed on particular bryozoans. I have found this one feeding on Amathia wilsoni, and although it may be wishful thinking, I think the bryozoan in your photo is Amathia.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Sep 17). Comment on Okenia mija from Bare Island, Sydney by Nicholas Missenden. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/14768

Factsheet

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