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Doto dunnei

Lemche, 1976


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
Tine Kinn Kvamme Doto coronata. Drøbak, Norway. 10 mm, at 25 meters dept.

João Pedro Silva The question is "which" Doto coronata.

Tine Kinn Kvamme If you know, please feel free to tell :)

João Pedro Silva They're quite tricky and ID usually requires also identifying the food source.

Tine Kinn Kvamme I agree :)

Brendan Oonk My gues would be Doto dunnei, there are multiple spots on the surface of the cerata in addition to the terminal spots on the tubercles

John de Jong Here the spawn is visible, Bernard Picton. D. coronata?

Bernard Picton The point is that what we call Doto coronata may actually be a group of species and not a single species. There are small differences between the animals on different hydroids and these may indicate that there are several undescribed species. In 1976 Henning Lemche decided that these differences were species level, and split Doto coronata into several species, including Doto dunnei, Doto maculata, Doto eireana and Doto koenneckeri. I was able to go out and observe the differences he had found by targeting the hydroids he'd associated with these animals.

Message posted on NE Atlantic Nudibranchs on 26 Feb 2012
Bjørnar Nygård João Pedro Silva, the nudibranch in question might have been on the hydroid Kirchenpaueria pinnata, but I'm not sure.

João Pedro Silva Doto dunnei, I think.

Bjørnar Nygård Ok, thanks. I've collected the specimen and will send it to Jussi Evertsen.

Carissa Shipman So kool! Completely new!

Bernard Picton The shape of the tubercles is different to D. dunnei in my opinion. Trouble is the hydroid taxonomy isn't robust either plus some hydroids certainly support more than one species of Doto. Nemertesia species are particularly interesting, with Doto fragilis eating two species of Nemertesia, Doto pinnatifida one of these and Doto cuspidata the other.

Message posted on NE Atlantic Nudibranchs on 26 May 2013
Taxonomy
Animalia (Kingdom)
  Mollusca (Phylum)
    Gastropoda (Class)
      Heterobranchia (Subclass)
        Opisthobranchia (Infraclass)
          Nudibranchia (Order)
            Dexiarchia (Suborder)
               Dexiarchia (Infraorder)
                Dotidae (Family)
                  Doto (Genus)
                    Doto dunnei (Species)
Associated Species