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Plumularia setacea

(Linnaeus, 1758)


Klas Malmberg Aquatilis Is this Doto millbayana? Crimson spots on the tubercles and on the general surface on ceras. Rhinofores with sheats sligthly flares and white pigment. Can anyone confirm?

Bernard Picton Probably. Do you know what it was feeding on? Carissa Shipman, this has small pseudobranchs compared with Doto dunnei which I recently collected. The dunnei had large pseudobranchs.

Klas Malmberg Aquatilis I found it on Nemertesia sp.

Bernard Picton But was there some Plumularia setacea growing on the Nemertesia? It often does and I've never seen a Doto with pink pigment eating Nemertesia.

Klas Malmberg Aquatilis I do not think it was eating the Nemertesia but suspect Plumularia, I could see growth of some kind on the Nemertesia

Klas Malmberg Aquatilis Thanks Bernard Picton for the information!

Carissa Shipman Yeah, I noticed this as well Bernard Picton. D. dunnei has more elongate pseudobranchs than D. millbayana. So I am guessing they are not the same after all!

Bernard Picton I've just found a couple of D. millbayana and had some Doto dunnei two weeks ago, so I can confirm that the pseudobranchs are much larger in Doto dunnei.

Arne Kuilman And a wonderful photo

Carissa Shipman well, someone needs to sequence more genes other than the ones I have done to confirm whether D. dunnei and D. millbayana are the same.

Message posted on NE Atlantic Nudibranchs on 25 Jun 2013
David Kipling Can anyone give suggestions as to types of habitat/food on which to look for Caloria elegans? It's been recorded in N Wales, and we're now going to be on the look-out for it in S Wales (a little bit of friendly north-south rivalry!). Any hints as to where to look for it (no comments like "In the Mediterranean" please!) would be very helpful. MarLIN/Habitas makes the following comment: "Found amongst the hydroids Nemertesia ramosa, Plumularia setacea and Halecium halecinum growing on rocks and other hard inorganic substrata." Thanks!

João Pedro Silva If you care to identify all the hydroids in these photos: http://www.flickr.com/photos/jpsilva1971/tags/caloriaelegans/ I'd add ti the MarLIN/Habitas comment that I usually find them in poorly lit places like small holes, crevices or even small caves.

Richard Yorke I would very much like you to identify the one with it in http://www.flickr.com/photos/jpsilva1971/6029926038/ as this looks very like http://richardy.co.uk/Scillies/content/120504_110652_E-520_large.html which I took earlier this year in the Scillies and has experts arguing over its identity.

David Kipling Thanks João Pedro!

João Pedro Silva Richard Yorke, I don't think C. elegans is feeding on that Alcyonium but on smaller hydroids growing in between. There's another shot of that individual: http://www.flickr.com/photos/jpsilva1971/6029368489/

Richard Yorke It was the Alcyonium I was interested in, in fact over hear there is still discussion as to whether my picture is a) Stolonifera or b) Alcyonacea, though I side with you. Can you take the identification any further for us please? I am the one to identify the latest Caloria elegans in North Wales so I am fine with that.

João Pedro Silva I think those may be Alcyonium coralloides but I'm really far from being an expert on Cnidaria.

Richard Yorke Thanks, that is not the first time that has been mentioned. Not something we are used to seeing up here!

João Pedro Silva It's very common here... actually, it's probably the most common Alcyonium although not always very interesting as a photographic subject.

João Pedro Silva As for the "in the Mediterranean" comments... why venture into the Mediterranean when you can get them in Portugal? :) There are still openings for next month's nudibranch safari in the Algarve: https://www.facebook.com/events/322010314535510/

David Kipling Lalalalalala not listening not listening <<fingers in ears>>

Liz Morris João Pedro Silva, that looks awesome! Wish I was free! Yes, Richard Yorke found another Caloria elegans in North Wales last weekend - so we are up one record in 2007, one in 2011 and one in 2012. So David Kipling has challenged the south welsh Seasearchers to find it down there too. We'll let you know how we get on no doubt. Maybe it is just under-recorded. Facebook is great for raising awareness of species. :)

João Pedro Silva I'm often asked if the apparent expansion of certain species is due to global warming. It may or may not be due to that or to human intervention but I suspect it may be due to more awareness and also to the increasing availability (and quality) of underwater photographic equipment.

João Pedro Silva Oh, make sure you get some good shots of the rhinophores. Apparently the ones with lighter cerata have longer and smoother rhinophores (http://www.flickr.com/photos/jpsilva1971/6238739494/) and the ones with darker cerata have shorter and rougher rhinophores (http://www.flickr.com/photos/jpsilva1971/6181899320/).

Richard Yorke Those two pictures of mine were of separate animals, so it is 2 more for the records for North Wales!

Message posted on NE Atlantic Nudibranchs on 29 May 2012
Taxonomy
Animalia (Kingdom)
  Cnidaria (Phylum)
    Hydrozoa (Class)
      Hydroidolina (Subclass)
        Leptothecata (Order)
          Conica (Suborder)
            Plumulariidae (Family)
              Plumularia (Genus)
                Plumularia setacea (Species)
Associated Species