Known only from New Caledonia.
Banc Gail, SW Lagoon, New Caledonia. TOP: 33m, 25mm long preserved, April 1990. LOWER: 30m, March 1988. PHOTOS: Pierre Laboute.
The colour pattern of this Hypselodoris differs from other pink chromodorids in having a broad outer cream or yellow mantle border and a narrow inner line of opaque white. It has similarities in colour to Thorunna speciosus but their anatomy is quite different.
• Rudman, W.B. (1995) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: further species from New Caledonia and the Noumea romeri colour group. Molluscan Research, 16: 1-43.
Rudman, W.B., 1999 (April 13) Hypselodoris flavomarginata Rudman, 1995. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/hypsflav