Chromodoris geometrica ? from the Maldives

June 1, 2001
From: Jim Anderson

Dear Dr. Rudman,
I am trying to ID my Maldive photos and have difficulty with this one (and some others). Can you help confirm that this is C. geometrica or whatever? It was photographed in Ari Atoll near Vakurufahli resort at a site known as Noo Giri in the Maldives in January 1996. The animal was approx 25mm long and was found during a daytime dive at 20 metres in a coral cave.

Regards,
Jim A

jander4454@aol.com

Anderson, J., 2001 (Jun 1) Chromodoris geometrica ? from the Maldives. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4440

Dear Jim,
It looks like this dark colour form has a fairly widespread distribution with photos in the Forum from the Philippines and Papua New Guinea. Nathalie Yonow (1994) has also reported this colour form previously from the Maldives. One characteristic of C. geometrica which seems to distinguish it from similarly coloured species such as C. conchyliata and C. hintuanensis is the yellow-green rhinophores and greenish tipped gills.

• Yonow, N. (1994) Opisthobranchs from the Maldive Islands, including descriptions of seven new species (Mollusca: Gastropoda). Revue fr. Aquariol., 20(4): 97-130.

Best wishes,
Bill Rudman

Rudman, W.B., 2001 (Jun 1). Comment on Chromodoris geometrica ? from the Maldives by Jim Anderson. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/4440

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