Chromodoris tasmaniensis from Sydney

December 9, 2002
From: Ian Simpson

Dear Bill,
Here is a photo of Chromodoris tasmaniensis from Bare Island, [Botany Bay, Sydney, NSW, Australia] 8 September 2001. 15 metres.

Not a great photo of the specimen, but a good photo of its food sponge Dendrilla rosea. Although this would not provide you with any new information, you might want to include photos like this on the site that clearly show the food sponges so that novice nudi hunters like myself have a better idea where to poke around when searching for different species
Ian Simpson


Simpson, I., 2002 (Dec 9) Chromodoris tasmaniensis from Sydney. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Thanks Ian,
Yes I very much want to include photos like this of potential food sponges and any other biological observations. We have still a lot to learn about the natural history of most species so part of the aim of the Forum is to recruit all the eyes of interested amateurs so we can build up this information. Concerning the name of the sponge it feeds on. I ma afraid this group of sponges are not easy to identify and species can have a number of growth forms. The most recent advice I have is that this is a form of Darwinella gardneri.
Best wishes,
Bill Rudman

Rudman, W.B., 2002 (Dec 9). Comment on Chromodoris tasmaniensis from Sydney by Ian Simpson. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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