Facelina bostoniensis - feeding information

July 8, 2006
From: Vincent Maran

Bonjour !

I saw about 10 Facelina bostoniensis (with eggs) in a place where there was no Tubularia nor Clava but there were other hydrozoa....

Locality: Sharendijke, 15 metres, Netherlands, North sea, 02 July 2006, on Polydora ciliata. Length: about 50 mm. Photographer: Vincent Maran.

Could Facelina bostoniensis could eat something else than Tubularia and Clava?

Best wishes
Vincent Maran

vincent.maran@ac-lille.fr

Maran, V., 2006 (Jul 8) Facelina bostoniensis - feeding information. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17058

Dear Vincent,
Thompson & Brown (1984) report this animal feeding on the hydroids Tubularia larynx, T. indivisa and Clava multicornis, but they note that 'if hungry, virtually any hydroid will be attacked'. Jussi Evertsen also has observed it feeding on a sea pen [message #11463].  It is also possible your animals have just eaten out a colony of Tubularia and are in the process of looking for some more of their desired hydroids.

Thanks for the photo of the egg ribbon. I have also included a close-up showing the annulations on the rhinophore. The photo alongside shows a red mark just behind the rhinophores. This is the anterior part of the oesophagus, which is quite often red in this species.

  • Thompson, T.E. & Brown, G.H. (1984) Biology of Opisthobranch Molluscs, Vol 2. Ray Society: London

Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Jul 8). Comment on Facelina bostoniensis - feeding information by Vincent Maran. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/17058

Factsheet

Facelina bostoniensis

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