Eudendrium annulatum

Erling Svensen Any one that can say something about this hydroid?

Simon Parker Looks like Tubularia indivisa to me.

Erling Svensen Tubularia indivisa is the "big" red one between the small one. It is the small one (close up) that I am interested in.

Simon Parker From the relative scales I'd say the smaller one is Tubularia laryx.

Bernard Picton It doesn't look like Tubularia larynx, nor anything else I've ever seen. Where are you Erling?

Erling Svensen I am out of Bodø close to Lofoten in north Norway on a scientific cruise with Bjørn Gulliksen and many others. Diving from a ship is very nice :-)

Marco Faasse Probably Eudendrium. One ring of tentacles, funnel-shaped proboscis ans shape of the hydranth suggest this genus.

Erling Svensen I agree, Marco. What about Eudendrium annulatum?

Marco Faasse I don't know E. annulatum Erling Svensen, is it a northern species?

Erling Svensen Yes, I think so. I know that Bernard have picture on his Habitas pages.

Marco Faasse Yes Erling Svensen, E. annulatum and E. arbuscula seem likely candidates. Schuchert (2012, Synopsis British Fauna) has a key: E. annulatum is more tree-like, sometimes with bark-like covering of the main stem.

Bernard Picton Can you collect some? Eudendrium arbuscula is tree-like with the polyps on short branches. Peter Schuchert (Museum Geneva) recently revised the European Eudendrium species.