Chromodoris quadricolor or C. magnifica

March 10, 2003
From: Marina Poddubetskaia


Dear Bill,
I’m just back from Southern Red Sea diving cruise, near Brothers Islands. I saw there many more sharks than nudibranchs, but somehow I found some species. I would like to reopen the discussion about the specimens of Chromodoris quadricolor I found a year ago in the Northern Red Sea. I think, the specimens I found in the South are the same and they seem to be quite common also. But now, my photos are better.

In my specimens the orange band can be said submarginal and they seem to fit a little the description of Chromodoris magnifica. So, the confusion persists. So, I’d like to have your opinion on these new photos. Thank you in advance.

Date: February 08, 2003
Location: Safaga, Egypt, Red Sea
Site: Tobia IV
Depth: 11m. Size: about 55mm
Photos: Marina Poddubetskaia - Nembro website

Best wishes,
Marina.

nembro@nembro.info

Poddubetskaia, M., 2003 (Mar 10) Chromodoris quadricolor or C. magnifica. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/9240

Dear Marina,
I hope as more photos are added that we can alleviate any confusion. In C. magnifica there is a distinct white outer band on the mantle while in C. quadricolor there can be a thin whitish edge to the mantle. Usually its translucent or uncoloured and I think the way it appears in photos is dependent on the way it is lit when photographed. In general terms the mantle in C. quadricolor is more elongate, with a relatively narrow mantle skirt while in C. magnifica the mantle is more ovate with a relatively wide mantle skirt.

The photos in your second message are also C. quadricolor.
Best wishes,
Bill Rudman

Rudman, W.B., 2003 (Mar 10). Comment on Chromodoris quadricolor or C. magnifica by Marina Poddubetskaia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/9240

Factsheet

Chromodoris quadricolor

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