March 22, 2002
From: Nishina Masayoshi
I think this belongs to the genus Cyerce but I have no idea of its name. This species is sometimes found in Hachijo Island.
Date: 3 March, 2002
Location: Hachijo Island, Japan
Masayoshi, N., 2002 (Mar 22) Cyerce sp.? from Japan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/6377
As far as I know this species is unnamed. I have also seen it in parts of the southwestern Pacific so it may have quite a wide distribution.