Chromodoris cf. geminus
South Coast of KwaZulu/Natal, SOUTH AFRICA, Near Port Shepstone. Rocky Reef, 20 - 25m, October 1999. Size: 40mm. PHOTO: Valda Fraser.
This looks quite like Chromodoris geminus which has also been reported from South Africa. However it is deeper in colour than the C. geminus and differs in having the purple right at the mantle edge rather than submarginally. There is also a distinct deep yellow submarginal band in C. geminus while in C. cf. geminus the yellow-brown background colour on the mantle is uniform. Also in C. geminus there are spots on the foot and a white edge, while in this species there are spots on the foot but it has a purple edge. The rhinophore clubs are purple not yellowish. This may be a mimic of C. geminus.
A very distinctive behavioural characteristic of C. geminus, which you can see in the photo at the top of the C. geminus page, is that the mantle edge is raised and lowered in one movement all around the mantle edge. Valda Fraser's message shows that this species differs in having the more usual waves of movement down each side of the mantle.Authorship details
Rudman, W.B., 1999 (December 1) Chromodoris cf. geminus [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/chrocfge
Chromodoris cf. geminus from Mauritius
From: Marina Poddubetskaia, November 21, 2002
Re: Movement in Chromodoris cf.geminus
From: Lindsay Warren, June 3, 2002
Movement in Chromodoris cf. geminus
From: Valda Fraser, December 2, 1999
Re: Chromodoris geminus? from Sth Africa
From: Valda Fraser, November 14, 1999
Chromodoris geminus? from South Africa
From: Valda Fraser, November 11, 1999