Food of Acanthodoris hudsoni

August 8, 2003
From: Hawk

I'm doing a project on opisthobranchs and i couldn't find what Acanthodoris hudsoni eats anywhere in books or on the internet. If you could help I would be very happy.

Hawk, 2003 (Aug 8) Food of Acanthodoris hudsoni. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Hawk,
As far as I know we don't know what this species feeds on. However we can get a good idea by looking at what its close relatives eat. Other species of Acanthodoris all feed on bryozoans, so we can be fairly sure that that is what Acanthodoris hudsoni feeds on as well. This is one of the reasons it is best to use scientific names for animals, as you have done, because the first word in a scientific name [the genus name] gives us information on a species relatives. For example, Acanthodoris hudsoni is closely related to all the other species in the genus Acanthodoris. If we want to predict its biology and ecology the best place to start is to look at other species of Acanthodoris. If we only used 'common' names it might be called 'Hudson's nudibranch' or the 'Furry dorid' and so we would have no easy way to relate it to other nudibranchs.
Good luck with your project,
Bill Rudman

Rudman, W.B., 2003 (Aug 8). Comment on Food of Acanthodoris hudsoni by Hawk. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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