Multi-lined C. annae from Vietnam

September 11, 2006
From: Mike Krampf

I apologize if I've already sent you this one. I was looking through my pics from Vietnam and haven't been able to ID this nudi. Your thoughts?

Locality: Three Kings dive site off Whale Island, 50 Ft, North of Nha Trang, Vietnam, South China Sea, 28 June 2006, Rock Pinnacle. Length: 4 cm. Photographer: Mike Krampf.

Thanks as always,
Mike

mtkrampf@yahoo.com

Krampf, M., 2006 (Sep 11) Multi-lined C. annae from Vietnam. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17497

Dear Mike,
I am beginning to wonder if the South China Sea region is one of those geographic regions which have a particular colour pattern, likre the red-spotted chromodorids in south-eastern Australia and the 'blue chromodorids' of the Mediterranean. In the South China Sea there seem to be quite few species with multiple black lines. Some of these I have considered in the past to be a variety of Chromodoris magnifica [see message #6907], while this one is something else. I think the clue to its identity is the punctate colour pattern on the mantle - that is the scattering of small darker pits all over the blue region. A number of similarly coloured species have this punctate pattern including C. annae, C. michaeli and C. westraliensis. I am beginnng to wonder if they are all colour variants of one species. Certainly C. westraliensis could be comfortably considered a West Australian variant of C. annae. I think at this stage I will consider your animal to be a variant of C. annae. While I am travelling, perhaps you could see if you have other photos which might linke this animal with these other species. For example see messages #316, #8535, #4662.

Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Sep 11). Comment on Multi-lined C. annae from Vietnam by Mike Krampf. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17497

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