Trailing Risbecia tryoni from Malaysia

August 26, 2006
From: Sven-Urban Fjellner

Dear Bill,

This is a recent photo of the trailing behaviour in nudibranchs. As can be seen the smaller one is apparently leading. To me these look like Risbecia tryoni, but inexperienced as I am I wouldn't bet my life on it...

(I have to apologise for the mediocre picture quality, but I tried to best the camera in knowing better what settings to use - guess what, the camera IS better...)

Locality: Pulau Redang, 10 - 18m, Malaysia, South China Sea, 24 July 2006, Reef. Photographer: Sven-Urban Fjellner.

Sven-Urban Fjellner

diver@kanakoto.net

Fjellner, S-U, 2006 (Aug 26) Trailing Risbecia tryoni from Malaysia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17564

Dear Sven-Urban,
Yes this is a pair of Risbecia tryoni trailing. In this case the two animals seem to be about the same size - the front one is a bit contracted - and the spots in each seem to be of similar size and number.

Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Aug 26). Comment on Trailing Risbecia tryoni from Malaysia by Sven-Urban Fjellner. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17564

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Risbecia tryoni

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