Re: Phidiana indica? from Sulawesi

March 19, 1999
From: Lindsay Warren

Dear Bill,
With regard to your query about the blue spiralling band on the rhinophores of the Phidiana - this is a thin blue coloured band which spirals up the rhinophore which is white.  This seems to be a colour pattern rather than a raised feature.  Unlike the photo of Phidiana indica which you posted along with the shot I sent through, 'our' specimen had a translucent but
distinctly pink body.  Perhaps the colours change as it matures.

Warren, L., 1999 (Mar 19) Re: Phidiana indica? from Sulawesi. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Lindsay,
I would be interested in a magnified shot of the spiral pattern on the rhinophores. It may be of help. As you will appreciate we know very little about the colour variation displayed by many tropical species, and there are still a lot of undescribed species to find. My best guess would still be P. indica.
Best wishes,
Bill Rudman.

Rudman, W.B., 1999 (Mar 19). Comment on Re: Phidiana indica? from Sulawesi by Lindsay Warren. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


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