Goniodoris joubini from Japan

May 14, 2000
From: Yasuhiro Shirai


Dear Bill,

Here are two photos of the same individual. I think that the rhinophore of this animal has been lost in one side. I think this animal is Goniodoris glabra or Goniodoris joubini.

Could you please identify it for me?

Data:
Location: Shima Pref. Mie Japan
Length: 10mm
Water temperature: 15C
Date 2000.02.14
Depth: -2m
Crawling on seaweed

Best regards,
Yasuhiro Shirai

yasuhiro@e-net.or.jp

Shirai, Y., 2000 (May 14) Goniodoris joubini from Japan. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2383

Dear Yasuhiro,
Goniodoris joubini from New Caledonia and Goniodoris glabra from the NW Pacific are almost certainly the same species.

Up until now I have continued using the name Goniodoris glabra for Japanese material because the only similar animal I had from New Caledonia, which I assumed was G. joubini, was dark brown with white speckling, and without any sign of yellow, which made it rather different from Baba's description. However Marshall & Willans's photo of an animal from the Great Barrier Reef, identical in colour to Japanese specimens, shows that the species is widespread. Risbec in his description, but not in the published painting [which I reproduce alongside], mentions yellow spots on the dorsum and orange yellow spots around the edge.

I think there is not much doubt that the two names apply to the same species, the oldest name being Goniodoris joubini Risbec, 1928.

Best wishes,
Bill Rudman.

Rudman, W.B., 2000 (May 14). Comment on Goniodoris joubini from Japan by Yasuhiro Shirai. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/2383

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