Tropical Western Pacific.
Koumac, New Caledonia, October 1993. PHOTO: Bill Rudman.
One of a group of species with a white background and orange markings, Halgerda carlsoni is characterised by the orange-tipped rounded tubercles and the scattering of small orange specks all over the mantle between the tubercles. There is a band around the mantle edge devoid of small orange specks. The gills and rhinophores are speckled with black and in some animals the speckling can be dense leading to some sections of th gills being almost completely black. Other similar coloured species include Halgerda malesso, Halgerda sp. 1 and Halgerda aurantiomaculata.
• Rudman, W.B. (1978). The dorid opisthobranch genera Halgerda and Sclerodoris Eliot from the Indo-West Pacific. Zoological Journal of the Linnean Society, 62: 59-88.
Rudman, W.B., 1999 (February 4) Halgerda carlsoni Rudman, 1978. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/halgcarl
Re: Halgerda carlsoni from East Africa
From: Sully et Monika Bachel, February 10, 2009
Halgerda carlsoni from Philippines
From: Marcel Tanke, October 1, 2008
Halgerda carlsoni from Malaysia
From: Francis & Pirjo Pellet, August 8, 2003
Halgerda carlsoni from Fiji
From: Mary Jane Adams, June 26, 2003
Halgerda carlsoni from Sulawesi
From: Mary Jane Adams, September 5, 2001
Tonga Records: Halgerda carlsoni
From: Don Barclay, May 29, 2001
Halgerda carlsoni from South Africa
From: Valda Fraser, March 7, 2001
Halgerda carlsoni from East Africa
From: Bernard Picton , March 5, 2000