Thorunna speciosus from Japan
June 9, 2000
From: Atsushi Ono
Here is a photo of an animal I think is Thorunna speciosus to compare with the two I think may be colour variations I sent in a separate message.
It is 13mm long and I found them at 5m depth on a coral reef at Kerama Is. near Okinawa in Japan.
firstname.lastname@example.orgOno, A., 2000 (Jun 9) Thorunna speciosus from Japan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2467
This is definitely T. speciosus but I don't think the other two photos you sent are colour variations of this species. Even if the orange border could vary to white, in T. speciosus there is always a break in the band on each side at the front of the mantle alongside the rhinophores. In the other animal, which I have tentatively called Thorunna cf. speciosus, there is no break in the white band bordering the mantle.
Thorunna purpuropedis from Okinawa, Japan
From: Kunihiro Takahashi, February 19, 2004
Thorunna purpuropedis? from Okinawa
From: Bob Bolland, August 5, 2000
Thorunna purpuropedis from Kerama Id
From: Atsushi Ono, June 15, 2000