Spurilla chromosoma? from Bare Island, Sydney

January 26, 2006
From: Jason Hoare

Hi there,
I've not seen this nudibranch before, and was wondering if you could tell me what it is. .

Locality: Bare Island, Botany Bay, Sydney, NSW, Australia.: Depth: 1 m. Length: 30 mm. 23 January 2006. intertidal. Photographer: Jason Hoare

Thanks,
Jason

jason21@internode.on.net

Hoare, J.L., 2006 (Jan 26) Spurilla chromosoma? from Bare Island, Sydney. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15643

Dear Jason,
This is a very interesting find. Can you first confirm this is the photo you meant to send? Sometimes contributors load the wrong file when posting a message. Why I ask is that I suspect this is an animal more at home on the west coast of North America than in the South Pacific.

It looks almost identical to Spurilla chromosoma which was first reported from California and now is found around the Nth Pacific to Japan. There is a photo on the Forum [#6713] of an animal from Japan which is very similar to yours. There is also an animal from Hawaii [#1385] which has tentatively been identified with the Mediterranean Spurilla neapolitana, which looks very similar. 

Whatever it is, it is not a common New South Wales species. Have you other photos of it? It would be particularly helpful to see more clearly the structures at its front end - head, tentacles, shape of anterior foot etc.
Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Jan 26). Comment on Spurilla chromosoma? from Bare Island, Sydney by Jason Hoare. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15643

Factsheet

Spurilla chromosoma

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