Chromodoris quadricolor/africana from Jordan

December 14, 2002
From: Erwin Koehler

Dear Bill,
To follow up on my earlier photos, here is a picture from Jordan, Aqaba. The general impression of this one was very dark, compared with many other Chromodoris quadricolor. So I thought it was Chromodoris africana, but it has a pale blue background in the middle, this could make it to Chromodoris quadricolor. It much larger than others of this group.

Size: 54mm
Depth: 18m
Date: 8 November 2002
Divesite: "Kiwi Reef"

Erwin

Erwin@medslugs.de

Koehler, E., 2002 (Dec 14) Chromodoris quadricolor/africana from Jordan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/8580

Dear Erwin,
I am sure this is Chromodoris quadricolor. The blue is the '4th colour' which gives this species its name. C. africana grows to a larger size and has a much more extensive mantle skirt than C. quadricolor. In an earlier reply to a message from Jochen Scholtyssek I identified some photos as being C. africana, and suggested some of identifications Debelius' of this species were incorrect. On reflection I think the blue colour is often lost in printing and his animals on the red sponge are C. quadricolor. It would be good to get some more photos of unambiguous C. africana on its food sponge to see if we can find another way of telling these two apart. It would be good if we could say with certainty that C. quadricolor, but not C. africana, fed on this red sponge.
Best wishes,
Bill Rudman

Rudman. W.B., 2002 (Dec 14). Comment on Chromodoris quadricolor/africana from Jordan by Erwin Koehler. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/8580

Factsheet

Chromodoris quadricolor

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