Re: Rispecia ghardaqana? from South Africa

May 9, 2007
From: Colin Ogden

Concerning message #19883:

Hi Bill,
Thanks for your response on the C. cavae. It is fascinating to see all the discussion on the forum generated by a couple of photos. I have a photo here of what I have tentatively ID as a R. ghardaqana as mentioned by you in the previous message. It is fairly similar to the C. cavae, or could it be a Risbecia pulchella.

Locality: Sodwana Bay, 19 metres, South Africa, Indian, 24 june 2006, coral reef. Length: 20mm. Photographer: Colin Ogden.

Regards
Colin

scubaco@iafrica.com

Ogden C. M., 2007 (May 9) Re: Rispecia ghardaqana? from South Africa. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19888

Dear Colin,
This is definitely R. pulchella. In my earlier summary [#9625], the translucent purplish patches seen in your photo are found in R. pulchella and are absent in R. ghardaqana, which has a uniform white background - apart from other things. To tell the truth I have never seen a specimen - or photo - which I could confidently identify as R. ghardaqana. That is the reason I wondered whether an animal like your C. cavae specimen could have been what Gohar & Aboul-Ela (1957) found and considered to be a new species which they named  Chromodoris ghardaqana.

Best wishes,
Bill Rudman

Rudman, W.B., 2007 (May 9). Comment on Re: Rispecia ghardaqana? from South Africa by Colin Ogden. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/19888

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Risbecia pulchella

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