Re: Glossodoris sp. A

October 3, 1999
From: Jim Cruise

Dear Dr Rudman,
I am regularly visiting the site and am astounded by the amount of traffic; congratulations on the good work.
A few months ago I sent you 2 slides, one of Thecacera picta, and one of a large pink Glossodoris sp.. I realise that to ID an animal, a specimen is really the only way to do it. However, I would query the big pink Glossodoris is G. dendrobranchia on the basis that I have found and photographed many G. dendrobranchia in the same area and same reef and they are the usual brown and white colouration.

Jim Cruise

Cruise, J., 1999 (Oct 3) Re: Glossodoris sp. A. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Jim,
Thanks for the message. As I said at the top of the page, I thought this animal was distinct from G. dendrobranchia, but am still waiting for some more specimens to confirm it. A nondescript colour, such as this species has, makes me a little more cautious about naming it as a new species, than I possibly would be with one with a bright and distinctly different colour pattern. Your observations on G. dendrobranchia are very useful as they help to confirm the 'normal' colour pattern of that species. If you come across a specimen or two of the pink Glossodoris sp. A, I would be very grateful for some specimens.
Bill Rudman.

Rudman, W.B., 1999 (Oct 3). Comment on Re: Glossodoris sp. A by Jim Cruise. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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