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Myxilla incrustans

(Johnston, 1842)


Paula Lightfoot What is this yellow sponge that is threatening to smother all the mollusc siphons?! Is it a Myxilla sp?

Claire Goodwin Probably Myxilla incrustans.

Message posted on NE Atlantic Porifera on 25 Jul 2012
Jon Chamberlain Is it possible to ID this yellow sponge without a sample? It was one of the few sponges I saw in the NE so would be useful to know. This one was at Seal Carr, Berwick approx 10m deep on a sediment covered, horizontal rock. http://www.flickr.com/photos/underwaterinferno/8079991838/in/set-72157631775493437/

Bernard Picton The sponge is probably Myxilla incrustans, it has lines on the surface like this.

Jon Chamberlain Thanks for the help

Claire Goodwin Most of the yellow ones from Rob's seaweed safari turned out to be this.

Jon Chamberlain Thanks Claire, that's reassuring! There were some yellow crusts with prominent spicules that I concluded were not this species, as well as this pink one which I assume is Myxilla rosacea. http://www.flickr.com/photos/underwaterinferno/8079996501/in/set-72157631752500357

Message posted on Seasearch Identifications on 15 Oct 2012
Jim Anderson Here's a double - Geitodoris planata on sponge covered 'upper' shell of Aequipecten opercularis> Loch Creran, Scotland - 26 may 2013

Sutherland Maciver Wow! quite a find!

Jim Anderson This is the 3rd time I've seen this combination and always at this location.

Sutherland Maciver Is the sponge Suberites luridus do you think? Its quite pale?

Sutherland Maciver it could be any number of sponges I suppose? Inculding Myxilla incrustans

Jim Anderson I'm not sure of sponges!

Sarah Bowen Not just a double; there's a tiny brittle star to the right of the nudi as well! Beautiful!

Paula Lightfoot ...which reminds me there are still no east coast records of this species on the NBN Gateway, so if anyone has any records from anywhere on the east coast (e.g. St Abbs) that they would like to share ... ;-)

Sutherland Maciver Yes I have photographed Geitodoris planate at St Abbs and know from Jim's Scottish Nudi pages that he has also

Sutherland Maciver planata sorry!

Paula Lightfoot These are diving records? If you send Dawn Watson the date, site name, coordinates (grid ref or lat/long) and depth range she can add it to the Seasearch data and it could be on the NBN Gateway within a month. We're sending an update to correct a few errors in the Seasearch dataset shortly so now's the time to add any extra records!

Message posted on British Marine Mollusca on 27 May 2013
Taxonomy
Animalia (Kingdom)
  Porifera (Phylum)
    Demospongiae (Class)
      Poecilosclerida (Order)
        Myxillina (Suborder)
          Myxillidae (Family)
            Myxilla (Genus)
              Myxilla incrustans (Species)
Associated Species