Thorunna cf speciosus? from Japan

June 9, 2000
From: Atsushi Ono


Dear Bill,
Here are chromodorid photos of different individuals. They are very small, the UPPER PHOTO is 7mm long, the LOWER is 5mm long.
I found them at 5m depth on a coral reef in May and Oct. 1999, at Kerama Is. near Okinawa in Japan.

Is this color variation of Thorunna speciosus?

PS. I have sent a photo separately, of an animal I think is Thorunna speciosus from the area.

Sincerely,
Atsushi Ono

ononini@cosmos.ne.jp

Ono, A., 2000 (Jun 9) Thorunna cf speciosus? from Japan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2466

Note: Previously on the Forum as Thorunna cf. speciosus this is now named Thorunna halourga.

Dear Atsushi,
It certainly looks a bit like Thorunna speciosus but the white border all around the mantle edge is certainly different. It is possibly a species of Thorunna but we could only be sure if that by looking at its anatomy.
Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (Jun 9). Comment on Thorunna cf speciosus? from Japan by Atsushi Ono. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2466

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