Described from Japan and reported from much of Australia, including Western Australia, South Australia, Victoria, New South Wales.
UPPER: Solitary Is, Coffs Harbour Region, New South Wales, Australia. March 1988. 39mm long. LOWER: Well-camouflaged animal [left of photo - note white-tipped rhinophores], 46mm long, on its food algae Caulerpa racemosa. Sthn Yorke Peninsula, South Australia, February 1985. AM C145205. PHOTOS: Bill Rudman.
Stiliger smaragdinus, like many algal feeding sacoglossans is almost invisible on its food as the algal colour pigments are retained in the digestive system and help to colour the animal. In this species the dorsal cerata have become an exact match, in size and shape, with the bubble-like bladders of the Caulerpa. Grows to 50mm in Australia.
•Baba, K. (1949) Opisthobranchia of Sagami Bay. Iwanami Shoten, Tokyo. 211pp + pls.
Rudman, W.B., 1998 (October 14) Stiliger smaragdinus Baba, 1949. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/stilsmar
Stiliger smaragdinus? from New Caledonia
From: Jean-François Hervé, September 13, 2007
First record of Stiliger smaragdinus from New Caledonia
From: Jean-François Hervé, August 10, 2006
Stiliger smaragdinus from eastern Australia
From: Bruce Potter, February 3, 2006
First record of Stiliger smaragdinus from NZ
From: Alan Morrison, February 17, 2005
Re: Stiliger smaragdinus in Japan
From: Kathe R. Jensen, August 6, 2001
Stiliger smaragdinus in Japan
From: Cynthia Trowbridge, July 24, 2001