Re: Spurilla chromosoma? from Bare Island, Sydney

January 27, 2006
From: Denis Riek


Concerning message #15643:

Dear Bill,
Here are some images of what I thought may be Spurilla chromosoma. It was found in very shallow water at high tide and curled up appeared more like an anemone than a slug.It looks like it has suffered damage to its rhinophores. This was a fairly large specimen (60 mm) and I have also found two smaller specimens which may also be the same species.

Locality: Brunswick River, nthn New South Wales Australia. Depth: 1 metre
Length: 60 mm. 01 May 2005. Rock wall in river. Photographer: Denis Riek

Regards
Denis

dwriek@optusnet.com.au

Riek, D.W., 2006 (Jan 27) Re: Spurilla chromosoma? from Bare Island, Sydney. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15668

Dear Denis,
The shape of the body including the tentacular anterior foot corners and arrangement and shape of the cerata certainly fit the animal we are calling S. chromosoma, as does the colour. In particular, the colour and rhinophores shape fit animals from Japan which have been identified as Spurilla chromosoma. I am not convinced, without further anatomical work, that the two animals I have illustrated on the Fact Sheet are the same species. Whatever transpires about its true identity, your record and Jason's certainly shows that this species is present in eastern Australia and is almost certainly a new introduction to Australia.
Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Jan 27). Comment on Re: Spurilla chromosoma? from Bare Island, Sydney by Denis Riek. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15668

Factsheet

Spurilla chromosoma

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