(Alder & Hancock, 1864)
Koumac, New Caledonia, 2m, October 1993, 70mm long alive. PHOTO: Bill Rudman.
The dorsum is translucent yellow with a characteristic pattern of dark brown patches around the mantle edge, while the underside is a bright orange yellow with small brown spots on the underside of the mantle and the sides of the foot. The dorsum is tuberculate and some of the larger tubercles have a long tapering fluid filled papillae.
• Alder, J. & Hancock, A. (1864). Notice of a collection of nudibranchiate mollusca made in India by Walter Elliot Esq., with descriptions of several new genera and species. Transactions of the Zoological Society of London, 5: 113-147.
Rudman, W.B., 1999 (January 13) Thordisa villosa (Alder & Hancock, 1864). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/thorvill
Thordisa? from New Caledonia
From: Jean-François Hervé, August 16, 2007
Thordisa villosa? from Nelson Bay
From: Dave Harasti, March 14, 2003
Thordisa villosa Chek Jawa, Singapore
From: Ria Tan, January 31, 2003
Thordisa villosa from Sydney
From: Erik Schloegl, March 18, 2001
Thordisa villosa? from Port Stephens, NSW
From: Ron Greer, June 17, 2000
Thordisa villosa fromWestern Australia
From: Clay Bryce, January 13, 1999