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Hemimycale columella

(Bowerbank, 1874)

David Kipling Hemimycale columella (I think!) for Tony Gilbert, taken near Milford Haven. Same thing as the one you saw on Lochgarry wreck?

Tony Gilbert Thanks David. I wouldn't have thought it was that as usually the craters are formed, but I guess its in its juvenile stage then. That's cool.

Kate Lock Yip I would go with that too.

Message posted on Seasearch Identifications on 20 Jan 2013
Richard Yorke 'Sponge V' lists an erect form of Bubaris vermiculata but has no picture. Could this be it, or is it just an odd form of Hemimycale columella? Seen at around 13m off the Dorset coast.

George Brown Interesting photo Richard. Might it just be stained by a red algae?

Richard Yorke Could be! I have never seen anything like it before, but then, most dives reveal something I have never seen before ........ that's half the fun.

Message posted on NE Atlantic Porifera on 11 Sep 2012
Tony Gilbert This looks like Crater sponge Hemimycale columella, and not Phorbas fictitius (oscule rims and body same colouration). The specimen was quite small as mentioned, and I've noted that its at its northernmost distribution areas (I saw one in Mull 2 years back). https://www.facebook.com/groups/seasearch.identifications/permalink/463530950336888/?notif_t=like#!/photo.php?fbid=188368181297273&set=a.173485702785521.38902.100003722780643&type=1&theater

Message posted on Seasearch Identifications on 16 Sep 2012
João Pedro Silva First time I tried this spot in Cascais, Portugal, to look for Scyliorhinus canicula. Did find a couple (a few meters next to us there were dozens...) but very shy and swam away before I could photograph them. Lots of these sponges, though. Any ideas?

Bernard Picton It is certainly close to Hemimycale columella, but those pore-sieves are very angular in shape. I'd need to see the spicules.

Message posted on Seasearch Identifications on 11 Jun 2013
Tony Gilbert Lochgarry wreck, Rathlin, Northern Ireland, at around 27m. Looks sponge-like next to the Caryophilia smithii, but as yet not Id'd it. https://www.facebook.com/media/set/?set=a.173485702785521.38902.100003722780643&type=1#!/photo.php?fbid=240053162795441&set=a.173485702785521.38902.100003722780643&type=3&theater

David Kipling Yes, def not a squirt.

David Kipling Sarah has suggested a colour morph of Hemimycale columella.

Claire Goodwin I agree with David and Sarah. There is also Hymedesmia paupertas to the top right of the coral (the blue sponge). This pale orange colour form is quite common.

Tony Gilbert Thanks all for clearing this one up, I'll add it to my records. I've seen many formed H. columella (Phorbas fictitus), but not like this. The Hymedesmia paupertas, yes I see it, thanks.

Claire Goodwin What do you mean by 'formed' H.columella Tony?

Tony Gilbert The Hemimycale I've seen previously tended to be more deeply cratered. https://www.facebook.com/media/set/?set=a.173485702785521.38902.100003722780643&type=1#!/photo.php?fbid=243358845798206&set=a.173485702785521.38902.100003722780643&type=3&theater

Claire Goodwin Don't think this is H.columella Tony. Have you colour corrected the image. H. col is usually orangey or pink even when it doesn't have the distinctive white edges and a much firmer texture. Probably a Phorbas or Hymedesmia but would need a sample to say which one for sure.

Claire Goodwin We also have a yellow undescribed Hemimycale from Scotland but haven't found it on Rathlin yet I don't think (? Bernard Picton).

Bernard Picton Trouble is we have several undescribed things which are a bit like this?

Tony Gilbert Thanks Claire and Bernard, that's good news then - better to find these and be challenged as to their identity. Colour I was expecting was paler orange or rose-pink, and H. columella rims of the depressions are of a lighter colouration. so 1 out of 2 for this, whereas Phorbas has the same colouration on the rims - and have seen this quite often. It wasn't the colour I was expecting for H. columella either but other than that appeared to be it (Rathlin shot here): https://www.facebook.com/media/set/?set=a.173485702785521.38902.100003722780643&type=3#!/photo.php?fbid=188368181297273&set=a.173485702785521.38902.100003722780643&type=3&theater I've just checked the location of the yellow sponge, Isle of Man, in the Sugar Loaf Caves (Jul-2012), so it would have lower light levels and different habitat conditions, depth would be 12-15m, and is located at the western-central end of the large swimthrough, on the inner side wall, about 2m up from the floor (the eastern end is much more narrow and dark).

Message posted on Seasearch Identifications on 20 Jan 2013
Animalia (Kingdom)
  Porifera (Phylum)
    Demospongiae (Class)
      Poecilosclerida (Order)
        Myxillina (Suborder)
          Hymedesmiidae (Family)
            Hemimycale (Genus)
              Hemimycale columella (Species)
Associated Species