Goniodoris aspersa in the Marshall Islands

October 22, 2002
From: Scott Johnson

Hi Bill,
Here is what may be another form of Goniodoris joubini from the Marshalls. It is similar to the other color form, but is more white rather than yellowish in the background and is more blotched with black, especially in the larger specimen, which measured about 12mm.
I also included a scan of Alder & Hancock's drawing of a Goniodoris they described as G. aspersa in 1864 [Plate 33, fig. 2]. Do you know what the status of this name is? Cannot really tell too much from the picture, but it looks like it could be G. joubini.

• Alder, J. & Hancock, A. (1864) Notice of a collection of nudibranchiate mollusca made in India by Walter Elliot Esq., with descriptions of several new genera and species. Transactions of the Zoological Society of London, 5: 113-147.

Scott

johnson@kmr.ll.mit.edu

Johnson,S., 2002 (Oct 22) Goniodoris aspersa in the Marshall Islands. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5699

Dear Scott,
I think you are right. I also had a look at my notes on Alder & Hancock's species and see that I had, at some time, written G. glabra? alongside their name. It seems pretty clear to be that G. aspersa is the oldest name for G. glabra and G. joubini. It would be interesting to compare the anatomy of specimens from India, where G. aspersa was described from, with western Pacific animals.
Best wishes,
Bill Rudman.

Rudman,W.B., 2002 (Oct 22). Comment on Goniodoris aspersa in the Marshall Islands by Scott Johnson. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5699

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