Feeding of Acanthodoris hudsoni

August 1, 2008
From: Jackie Hildering & Glen Miller

Here are some photos showing the feeding behaviour of Acanthodoris hudsoni. These images better show the grazing of two animals on what I think is orange finger sponge (Neoesperiopsis rigida ).

Locality: Bear Cove, 75', British Columbia, Canada, Pacific Ocean, 27 October 2007, Rock shelf. Length: 4 cm . Photographer: Jackie Hildering.

Jackie Hildering & Glen Miller

earthlingenterprises@telus.net

Hildering, J. & Miller, G., 2008 (Aug 1) Feeding of Acanthodoris hudsoni. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21137

Dear Jackie and Glen,

We appreciate this submission greatly, as there are no references in the literature concerning the food of this species.

That said, species of Acanthodoris do not feed on sponges, only tunicates. The yellow brown prey in your photos is a compound tunicate, not a sponge. Note the zooids. I wish I could ID it but I cannot find it in any of my references. This is great information.

Thanks,
Dave Behrens

Behrens, D.W., 2008 (Aug 1). Comment on Feeding of Acanthodoris hudsoni by Jackie Hildering & Glen Miller. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/21137

Factsheet

Acanthodoris hudsoni

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