Diaphorodoris luteocincta

Klas Malmberg Aquatilis As a reply to Robert Eriksson tread about color polymorphism in Diaphorodoris luteocincta, I´ve got a picture from earlier spring of one.

David Kipling That's interesting - a pure white version as opposed to the var. alba form (which has a yellow unbroken margin). There's a suggestion that the papillae on var alba are different - fewer and less prominent. This one has the feel of the normal (non-alba) variety but without colour (ie an albino).

João Pedro Silva In terms of body shape, this also appears to be more rounded like reticulata (what you call normal).

David Kipling Very true - the few alba that I've seen do seem a bit more 'stretched' in their body, as opposed to the more rounded reticulata. The picture I have jumped bumped showing both on Lundy gives a feeling for this.

Robert Eriksson Brilliant! this clearly shows what I've been after; three colour morphs!

Joshua Hallas That's really cool and also very weird....i haven't seen a photo of one with no coloration....

Robert Eriksson And the plot thickens... After a dive at Stora Håskär, Smögen archipelago we saw what seems to be a fourth colour morph; all red with yellow rim (didn't see the colour of the peduncle)... Alongside the "alba" form; all white with yellow rim.

Ana Lama Diaphorodoris luteocincta

Josep Albert P Muy buena.

Ana Lama Gracias Josep!!!!!!!!!

Manuel Martínez Chacón Preciosa... al contrario que otras especies, esta no puede retraer los rinóforos y las branquias dentro del cuerpo para protegerlos.

Ana Lama Cierto Manuel!! Gracias

Alex Mustard Learned today that Diaphorodoris luteocincta has fluorescent pigments - maybe from its food? None of the other nudibranch species I tried had any response.

Joshua Hallas that's really cool i had no idea they could do that. Did you try it with other Diaphorodoris

Lucas CerCur First notice about this phenomenon in this species.

Alex Mustard No. Didn't try that many species. But will in the future

João Pedro Silva Great! Have tried with Eubranchus linensis but... no result.

Leila CB O.o cool!!

João Pedro Silva Nuno Sá, you have to see this. Let's hope Diaphorodoris luteocincta var alba and D. papillata also do this!

Anders Schouw Of all thenudies I have tried, this is the only one I have found with anny real fluorescence in Norway so far.

Rebecca Johnson Rodgers I have seen reports of this phenomenon in 'Doriprismatica' sedna

Anna Nudi Burn very cool!!

Egidio Trainito I need it...

David Kipling Is this the red or yellow bit that is fluorescing (which would start to address João Pedro's question about var reticulata v var alba)?

João Pedro Silva Apparently it's not the red but part of the yellow margin (but not the whole of it) plus the white line extending towards the tip of the foot. http://www.flickr.com/photos/jpsilva1971/5718847287/

João Pedro Silva I'll be doing a night dive next friday. Will try to bring an UV light to check.

Alex Mustard I think it is the yellow bit, and some of the white. There wasn't yellow on the tail, but there was fluorescent response there. Here is a white light photo from the same dive site (not the same individual). http://www.amustard.com/images/UK13_am-12618.jpg

Alex Mustard João Pedro, note that my shot is a blue light, rather than UV fluorescence.

João Pedro Silva That's important info, Alex! It would be interesting to know which wavelengths produce best results. As I've never seen D. luteocincta var reticulata here (and if both vars are actually the same species...) I hadn't noticed the yellow band is thinner than in var alba.

Rachel Shucksmith Alex, that looks amazing. Were you just trying specifically on nudi's or were you trying a few different species?

Alex Mustard Learned today that Diaphorodoris luteocincta has fluorescent pigments - maybe from its food? None of the other nudibranch species I tried had any response.

Joshua Hallas that's really cool i had no idea they could do that. Did you try it with other Diaphorodoris

Lucas CerCur First notice about this phenomenon in this species.

Alex Mustard No. Didn't try that many species. But will in the future

João Pedro Silva Great! Have tried with Eubranchus linensis but... no result.

Leila CB O.o cool!!

João Pedro Silva Nuno Sá, you have to see this. Let's hope Diaphorodoris luteocincta var alba and D. papillata also do this!

Anders Schouw Of all thenudies I have tried, this is the only one I have found with anny real fluorescence in Norway so far.

Rebecca Johnson Rodgers I have seen reports of this phenomenon in 'Doriprismatica' sedna

Anna Nudi Burn very cool!!

Egidio Trainito I need it...

David Kipling Is this the red or yellow bit that is fluorescing (which would start to address João Pedro's question about var reticulata v var alba)?

João Pedro Silva Apparently it's not the red but part of the yellow margin (but not the whole of it) plus the white line extending towards the tip of the foot. http://www.flickr.com/photos/jpsilva1971/5718847287/

João Pedro Silva I'll be doing a night dive next friday. Will try to bring an UV light to check.

Alex Mustard I think it is the yellow bit, and some of the white. There wasn't yellow on the tail, but there was fluorescent response there. Here is a white light photo from the same dive site (not the same individual). http://www.amustard.com/images/UK13_am-12618.jpg

Alex Mustard João Pedro, note that my shot is a blue light, rather than UV fluorescence.

João Pedro Silva That's important info, Alex! It would be interesting to know which wavelengths produce best results. As I've never seen D. luteocincta var reticulata here (and if both vars are actually the same species...) I hadn't noticed the yellow band is thinner than in var alba.

Rachel Shucksmith Alex, that looks amazing. Were you just trying specifically on nudi's or were you trying a few different species?

David Kipling Contrary to what Dawn Watson thinks, I do not have a supply of model nudibranchs that I take with me on dives ;) These are from the National Museum here in Wales, made of Fimo I think!

Christian Skauge I have a kit like this, bought on eBay from Japan :-)

João Pedro Silva My wife makes bijoux with Fimo professionally and I've been trying (for ages!) to convince her to do these models with the portuguese species.

Christian Skauge http://www.facebook.com/photo.php?fbid=1550708580196&set=a.1157771997027.24269.1609584836&type=3&theater

João Pedro Silva Hurrah! I've shown my wife these models and she asked me to pick 6 species for her to make until June :)

Bernard Picton Tell your wife it's a very noble tradition. These glass models were traded widely and many museums still have some. There was a conference about them in recent years in Dublin. http://en.wikipedia.org/wiki/Leopold_and_Rudolf_Blaschka

Bernard Picton Christian Skauge, for your contact who wanted Glaucus, NM Wales have a Blaschka one!! http://www.museumwales.ac.uk/en/rhagor/galleries/blaschka/

Christian Skauge Do you have dates for June? Been away a few days (Nudibranch Safari, of course!) and haven't paid much attn to FB...

Bernard Picton Or July?

Christian Skauge Fantastic glass figures - I want one!!

Bernard Picton I doubt if you can afford one, I'm afraid. But if you visit Ireland we could try and get to see the ones in National Museum of Ireland. It was closed to the public, but I have contacts. http://www.ucd.ie/blaschka/

Christian Skauge Will do! I think I'll have to steal one, they seem a bit pricy... :-D

Bernard Picton Did you find a price?

João Pedro Silva Sorry, I don't have dates yet :(

João Pedro Silva I've sent a list of 8 species so she can pick 6: Flabellina babai, Hypselodoris villafranca (these are so common they are a "must"), Armina maculata, Marionia blainvillea, Diaphorodoris luteocincta, Dondice banyulensis, Chromodoris luteorosea, Cadlina pellucida. If these turn out ok I'm counting on you to convince her to the all the NE Atlantic species :)

David Kipling Okenia elegans of course!

Christian Skauge @ Bernard: Found no price, just a wild guess :-)

Gonçalo Calado Same with algarvian typical pastery http://www.imagesofportugal.net/media/471cd934-bdc1-11e0-acb5-57e8dc34769b-algarve-s-traditional-pastry-portugal

João Pedro Silva I usually describe Platydoris argo as a pancake orange underneath with sugar on top.

Bernard Picton Now don't go there... Seasearch keep inventing common names for things, Amphilectus fucorum = shredded carrot sponge - trouble is they are always food related...

Bernard Picton Pentapora was widely called ross coral (I think a typo for rose) but they invented potato crisp bryozoan....

Christian Skauge hahaha I always get hungry when finding a sea sausage :)

João Pedro Silva All the nudibranchs here in Portugal share on common name: "nudibranch". Except for Peltodoris atromaculata: "vaquinha suíça" (literally, "swiss cow", a dairy Holstein breed cow).

Becky Hitchin I have some plastic nudibranchs from Japan :)

David Kipling I have to say that I am disappointed that the National Museum (which tends to focus on welsh natural history) has a display of purely tropical nudibranchs! I think we should get João Pedro Silva's wife to make an extravagant set of NE Atlantic nudibranchs to replace them, to show that the Atlantic has species that can easily rival those in the tropics.

David Kipling Although we might have to make the Dotos a bit larger-than-life!

João Pedro Silva Diaphorodoris luteocincta com rinóforo bifurcado Local: Sesimbra, Portugal Spot: Jardim das Gorgónias Profundidade: 15m Data: 09-10-2011

João Pedro Silva Diaphorodoris luteocincta Local: Sesimbra, Portugal Spot: Paredes do Cabo Profundidade: 12m Data: 14-05-2011

Henrique Nascimento Catarina Diaphorodoris luteocincta Sesimbra - Portugal

João Pedro Silva Muito boa, Henrique! Estás a usar tubos ou diopters? A profundidade de campo deixou o rinóforo mais próximo desfocado mas isso não me parece grave. Pena é que as papilas no manto não se percebam: http://www.flickr.com/photos/jpsilva1971/5718847287/

Henrique Nascimento Catarina Obrigado João.... esta é um crop :))) ainda não tenho o equipamento para acoplar lente humida, mas lá chegarei.... sim tens razão, para se ver a papilas, deveria ter menos flash???

João Pedro Silva Acho que a questão não é tanto "quantidade" de luz mas por um lado a profundidade de campo (as papilas estão lá mas não estão focadas) e por outro lado a orientação dos flashes.

Christian Skauge Hi guys, I was wondering if anyone could say what species or at least genus this might be? I have it down as a Crisia sp. Would be good to know, as I plan to use the image in a book... :-)

Bernard Picton A Bugula?

Christian Skauge Sorry, completely forgot data in my haste to be the first to post here :-) Found off the coast of Haugesund, Norwegian west coast, 31.07.2004. Depth approaching 20 meters as far as I can recall.

Bernard Picton We need Jo Porter to find some helpers, so be patient.

Christian Skauge No rush, they're probably still there :-)

Joanne Porter I'd agree with Bernard, definitely a Bugula.

Bernard Picton I was hoping you'd say which one Jo.

Bernard Picton Need a closer picture?

Christian Skauge I can enlarge if necessary... Hmm genus Bugula... the nudi in question (Diaphorodoris luteocincta) doesn't eat those, apparently... *dammit, must find new image for book*

Bernard Picton It might eat those, never trust anything written in a book.

Bernard Picton Crisia is similar looking, but only a single row of zooids I think? Several sorts here.

Christian Skauge True, they'll probbaly eat anything if hungry enough ;-) But since I'm not dwelving too deep into the biology stuff (I leave that to you!) I'll have to sift through my images to find something that matches my sources... Thanks, this is actually a great help!

Erling Svensen Are you sure that this not might be Securiflustra securifrons? I have a feeling for this one.... ;-)

Liz Morris Looks like Bugula flabellata to me, but I'm no expert. Id be interested to see the answer

Leandro Vieira Looks like Bugula flabellata or Bugula fulva.

Robert Eriksson Colour polymorphism in O. Luteocincta?! Last weekend we encountered numerous Onchidoris luteocincta with the typical red and yellow colouring. What we also saw was the same nudi but without colour (plain opaque white), and the two types were mating. Anyone else seen this polymorphism before?

Christian Skauge That sounds like the Onchidoris luteocinta var. alba to me :-)

Sarah Bowen Yes, that variant occurs around the UK. There is some consideration of it being a separate species as the white ones are much more textured and the yellow edge seems to be more prominent.

Klas Malmberg Aquatilis Yes - saw exactly the same at väderöarna in march...

Jim Anderson Can you help me with the paper that revised Diaphoradoris to Onchidoris?

Christian Skauge Sorry, my bad (partly, anyway) - meant Diaphorodoris luteocincta ;-)

Jim Anderson Thanks Christian - I'm always trying to keep up!

Robert Eriksson Cool, thanks guys - never seen the white one before. Mating seems a good indicator for colour polymorphism don't you think? (if offspring is fertile that is...). And Sara, the white ones were white. No yellow, no red just plain white.

João Pedro Silva Although D. l. var reticulata (the "red one") is also found further south and even in the Mediterranean, here in Portugal I've never seen other than D. l. var alba. You've got plenty here: http://www.flickr.com/photos/jpsilva1971/tags/diaphorodorisluteocincta/

Robert Eriksson Cool thing the distribution pattern. But now we have another variation. Have anyone seen this particular one (all white) before?

Stewart Clarke Another one from the UAE, at about 20m. We think this is an undescribed species of Diaphodoris - was about 12mm in length.

João Pedro Silva Certainly some king of Diaphorodoris. Except for the orange rhinophores it could be easily mistaken for Diaphorodoris luteocincta var alba. http://www.flickr.com/photos/49844432@N08/5718847287/

Joshua Hallas I'm officially putting a call out there to everyone, I am looking for species in the family Onchidorididae. I'm a grad student at California Academy of Sciences and i need specimens for Europe....your help will be greatly appreciated

Bernard Picton Joshua, you could explain, or put a Doc on here with how you would want the specimens preserved, so that people can kit themselves up. Most photographers are loath to collect, but for a good cause... Erling had to give me some clear liquid he'd got in a shady bargain with some ship I seem to remember.

Bernard Picton I wrote something in our book; you can tell how long ago as it talks about ASA 64 film - Kodak, what happened? http://www.seaslug.org.uk/nudibranchs/collect.html

João Pedro Silva Besides the Kodak and Nikonos references, the document is still valid, Bernard. In Portugal one is required to have a license to be able to collect anything. Here there are only two species in that family: Diaphorodoris luteocincta and D. papillata. Both are very common so there's no risk of damaging any population by collecting a couple of specimen.

David Kipling Hi Joshua Hallas. To echo Bernard, do let us know how you'd like them to be collected, including any metadata you might wish (eg locale, depth, habitat etc etc). I guess the method of preserving will depend on what you want to use the samples for (DNA, radula, morphology). Several of us on here are in Universities so have access to EtOH and the usual lab gubbins, but not everyone. However, if someone does want to collect I may well be able to help them out with reagents if they let me know. Also, many of us take u/w pics of nudis, so it would be entirely possible to get pictures of the sample in situ before collection, or while still alive at the surface. George Brown has a wonderful little light box! Finally, what species are you interested in specifically that are found round here? I think the best idea is to write a document and post it in the Docs section of the site. Good luck!

Joshua Hallas thanks for the advice and the the willingness to help and i will post a document asap....

David Kipling Thanks Joshua, we'll look forward to that.

João Pedro Silva Felimare fontandraui com rinóforo tripartido Local: Sesimbra, Portugal Spot: Ponta da Passagem Profundidade: 5m Data: 04-08-2011

Manuel Martínez Chacón El circo de fenómenos nudibranquios.

João Pedro Silva Mas ainda vi poucos "freaks" :) Principalmente quando comparado com a colecção de deformidades no Seaslugforum.

Manuel Martínez Chacón Yo nunca he visto ninguno...

João Pedro Silva Atenção que nem todas se conseguem ver in loco. Este rinóforo tripartido e o rinóforo bifurcado de Diaphorodoris luteocincta só foram vistos quando estava a processar as fotos no PC.

María Eugenia Suárez Manuel Martínez Chacón yo iba a ponerte: "Con lo pequeños que son y lo que se esconden lo fácil es no verlos". Pero João Pedro Silva ya ha dado la razón de "encontrarlos". :)

Manuel Martínez Chacón jejeje, bueno, en Tarifa ver nudibranquios es relativamente fácil, incluso los pequeños si uno sabe dónde mirar... pero es cuando uno procesa la foto dónde se descubre una deformidad o una especie que no era la que creías.

João Pedro Silva E ainda os parasitas.