Thuridilla splendens from Japan

November 16, 2003
From: Yukari Sato

Hello Dr.Rudman,
I have found this animal at Izu, Japan.
I think it is Thuridilla splendens. I am happy if you have any comment.

Upper right: 5 Jun 2003, Depth: 18m, Size: approx 30mm.Tago, Suruga bay west coast of Izu peninsula, Japan
Lower left: 5 Jun 2003, Depth: 18m, Size: approx 40mm. Tago, Suruga bay west coast of Izu peninsula, Japan
Lower right photos: 9 Apr 2003, Depth: 18m, Size: approx 30mm. Ito, Sagami bay east coast of Izu peninsula, Japan

Best regards,
Yukari Sato

yuks@cg7.so-net.ne.jp

Sato, Y., 2003 (Nov 16) Thuridilla splendens from Japan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11398

Thanks Yukari,
Your photos exactly match the original illustration [Baba, 1949]. It is good to get some photos of this species from Japan as they certainly clarify the colour apttern found in this species. Ir would seem this species may be only occur in Japanese waters and animals I have identified as T. splendens from elsewhere are most probably a different species - but at this stage I am not sure whether they are an undescribed species or part of the T. bayeri - T. ratna - T. gracilis complex.
best wishes
Bill Rudman

Rudman, W.B., 2003 (Nov 16). Comment on Thuridilla splendens from Japan by Yukari Sato. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/11398

Factsheet

Thuridilla splendens

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