Polycera faeroensis

John de Jong These spawn I found on the same Wakame leaves were I found the Polycera faeroensis and quadrilineata. What specie do they belong?

Peter H van Bragt Hello John, this is a spawn of F. bostoniensis. Cheers, Peter

John de Jong Thnx, Peter H van Bragt. I knew it wrapped around Tubularia, not on a flat surface.

Erling Svensen One more picture from last evening. I did not see when diving that the nudi was a Polycera faeroensis - I was quite sure the nudies around was P. quadrilineata. So this was the third dive in Norway that I saw the faeroensis. Nice. Here together with the A. norvegicum coral.

Rudolf Svensen Guess there are a lot of unknowm macro "stuff" on that location to be explored in the future.

Christian Skauge Lucky you! I still haven't seen the faeroensis...

Erling Svensen If you need a picture for your new book I would be happy to let you have one....

João Pedro Silva "Your" P. faeroensis have a lot more yellow markings that "ours": http://www.flickr.com/photos/jpsilva1971/6238175271/ It might be an interesting idea to create an album with some variants.

João Pedro Silva (*than* "ours", sorry for the typo)

Erling Svensen Yes, it has. Strange....

Niels Schrieken Beautiful picture. 1) A lateral process (alongside the gills), which is flattened and has developed a number of yellow-tipped points along its edge. 2) At least 9 tentakels at the front. I also should say P. faeroensis.

Niels Schrieken Dit you collect this specimen? Maybe it's an idea to DNA sequencing on P. quadrilineata and P. faeroensis to see if we can distinguish them.

Bernard Picton It looks as though the P. faeroensis is eating that bryozoan? Could you crop that one zoomed in on the RHS and repost on NE Atlantic Bryozoa Erling Svensen?

João Pedro Silva I've got photos of P. faeroensis feeding on several species of Bugula. http://www.flickr.com/photos/jpsilva1971/tags/polycerafaeroensis/ Sorry for the quick message but I'm now packing to go to Berlengas for 2 or 3 dives.

João Pedro Silva (just checked: most of my photos of P. quadrilineata show animals with only 4 oral processes)

Robert Eriksson Sweet. Just off Lysekil on the Swedish west coast we have found a variation of faroensis (or new species?); several oral tentacles like faroensis (>4) but which are tasselled (flattened branches). Alas, I have no photos, but this variation is so distinct that more nudi-nerds than I must have seen it? I call it Polycera harpobadiensis from Harpöbådarna were we first saw it back in 2007...

João Pedro Silva Could it be just a variation like with the shape of the extrabranchial processes? ("nudi-nerd"... I like this) :)

Robert Eriksson Could be, but processes on *each* of the tentacles which count more than 4? Too much variation to be chance if you ask me... But we haven't collect the type yet... So until then let's wait bit longer before we jump into conclusions and speculate too much...

George Stoyle Polycera faeroensis, North Rona, Nikon D700, Nauticam, 105mm macro, Inon Z240

Alex Tattersall Where is North Rona?

George Stoyle it's a Scottish island in the North Atlantic - about 40 miles north of Lewis in the Hebrides.

Eric van Andel Polycera faeroensis in the Oosterschelde (NL) last weekend. E520 F=13 1/125 Olympus Zuiko 50 mm 2 Inon strobes

Johny Leffelaer Mooie foto.

Philippe Velghe Nice Eric :-)

Eric van Andel Thanks guys!

Rinie Luykx Mooi hoor :-)

Isabella Maffei nice

Eric van Andel Thanks again, I hope to improve the quality soon with a +10 Diopter on the way :-)

Philippe Velghe The divespot looks verry familiar :-)

Victor Sanchez Small sex..

Manuel Martínez Chacón ¡¡Eeeeeh, oyeeee, que este grupo lo ven los niños...!!

João Pedro Silva Então não posso colocar uma sequência de 3 acasalamentos em 7 minutos de Polycera faeroensis :) http://www.flickr.com/photos/jpsilva1971/9513019204/

George Stoyle Polycera faeroensis or quadrilineata (?), North Rona, Scotland.

Gary Cobb This is a dark specked Polycera quadrilineata (Muller, 1776)

George Stoyle Thanks Gary Cobb

George Stoyle Thankyou Jim

Jim Anderson George - for Scottish Nudibranch ID's try here http://www.nudibranch.org/Scottish%20Nudibranchs/index.html

Bob Whorton Beauty!

Erling Svensen A very tiny Palio dubia from yesterdays dive in the harbour. A lot of nudis now, so I hope that Bernard Picton will have a great time when I pick him up in Bergen this week.

Peter H van Bragt Erling, this is Palio nothus, not P. dubia

Erling Svensen Jippppiiiiiii. A new spieie.......... Thanks alot......

Erling Svensen ..... specie.......

Christian Skauge Congrats! This one is really cool, and quite rare in Norway :-) Looking forward to seeing you very soon, btw!

Gary Cobb Geeez what's the water temp?

João Pedro Silva Gary, let's look at the bright side: it's above freezing and warmer than in January :) We have a lot higher temperatures and right now it's 13-14ºC here in Portugal. An interesting thing I've been noticing is that some species occurring both in Iberia and much further north (for instance, in the UK, The Netherlands, Norway, etc) do seem to grow a lot more in colder waters. Examples of such species include Polycera faeroensis, Polycera quadrilineata and Limacia clavigera. More bryozoans? More dissolved oxygen? Don't know...

Gary Cobb Buurrrr! My dry suit will keep me from the chill thats for sure Joao. Thanks! Yes I am finding here on the Sunshine Coast (water temp 26C) <- weep! Species from the tropics up north and about 10 years ago we were finding temporate species but not now.

João Pedro Silva I'm not sure if here we are witnessing species spreading their distribution range or we are getting more (and better) documents of observations.... I'm more inclined towards the latter. Initiatives such as the Nudibranch Safari have been producing really interesting results. Above 15ºC and in the summer I change to a semi-dry (can't stand the heat at the surface).

Gary Cobb I know what you mean! I choose the later!

Anna Nudi Burn What a gorgeous little fella :)

Eric van Andel Polycera faroënsis or polycera quadrilineata ??

Gary Cobb Location and size please

David Kipling Yes, I would say ;)

Eric van Andel Zeeland, south-west Netherlands, approximately 1 to 1.5 cm...

David Kipling It has the spots of quad, but how many oral processes do you think it has? It seems half way between quad (four processes) and faroensis (eight).

Eric van Andel looks six to me..... *confused*

Gary Cobb I would say this is Polycera quadrilineata (Muller, 1776)

David Kipling Why do you say that Gary, as opposed to faroensis?

Eric van Andel what's your basis for this choise Gary Cobb?

Gary Cobb The number of processes at the front end 4

David Kipling So what are those two things just outside the central four processes?

Eric van Andel and what are those 2 extra 'things' left and right from the processes called?

Gary Cobb Polycera faroensis can have double that.

Gary Cobb From what I can remember P. faroensis has far less yellow markings and an almost completely white body.

Gary Cobb Polycera faroensis tends to get up to 50 mm or would be considered a larger animal

Gary Cobb Well that's my 2 bits. Hope this helps.

Eric van Andel think I'm convinced Gary Cobb :-}

Jim Anderson Ploycera faeroensis - I've seen lots with yellow spots on their bodies - check here for some http://www.nudibranch.org/Scottish%20Nudibranchs/polycera-faeroensis.html

David Kipling I'm still not clear how we define "oral processes" here (4=quad, 8=faroensis). Eric's picture shows four clear long processes, and then two yellow things next to them which are more flattened. Do these count as oral processes, or are they yellow markings at the mantle edge? The reason I ask is that one of Jim Anderson's pictures is almost identical to Eric's picture, with the four (=quad) processes and two additional yellow bits, and I wonder whether Gary Cobb would call this P. quad instead? http://www.nudibranch.org/Scottish%20Nudibranchs/html/polycera-faeroensis-07.html

Gary Cobb Yes I would call this Polycera quadrilineata!

Gary Cobb Ok...Jim on what basis do you call this latest photo Polycera faeroensis??

Gary Cobb I base my opinion mainly on the number of processes at the front end. The naming of the two species can be subjective as we all know. Individual animals can have characteristics of both species. As non professionals we can only hazard a guess. Just try to match the morphology as best you can and be happy with your result, only looking inside the animal and/or DNA analysis can give us the true identity.

Gary Cobb From Bill Rudman... "It is possible to distinguish P. quadrilineata from P. faeroensis, by using external characters but as both species are quite variable in colour, most of the colour pattern is not that useful. However the best distinction is that P. quadrilineata usually has 4 (rarely 6) oral veil processes, while P. faeroensis usually has 8 or more. ...over to you.

Jim Anderson All my 'difficult' examples were verified by Dr. Bernard Picton. I consider the number and shape of the oral processes to be the clues in this one - it's more faeroensis than quad from the many examples I have seen. Not very precise i know but my best attempt.

Eric van Andel Perhaps Bernard Picton can have a go at this one? :-)

Johny Leffelaer Again,the Polycera quadrilineata.;-)

Wil Yu This is amazing!

Jim Anderson This looks more like Polycera faeroensis.

Johny Leffelaer Its a thin line between them,can you tell me whats caracteristic for the P.faeroensis,compare P. quadrolineata??

Johny Leffelaer Big mistake from me,indeed its Polycera faeroensis,i was reading your comments on this species,wich i found on the internet,thanks for this.

Henrique Nascimento Catarina Polycera faeroensis Farilhões (Berlengas) - Portugal 20130710

Christian Skauge Finally found one! I have been looking for the Polycera faeroensis for a long time with no luck until recently. To many of you this species is not that uncommon, but up here in Norway it is a rare sight. Oddly enough it seems to be occurring quite often in the Kristiansund area.

Torjus Haukvik Congratulations! You are not the only Norwegian looking for that one! ;)

Terry Griffiths And there you go seen so many of these not unless there mating i don't bother taking photo's.

João Pedro Silva After diving here you'll be fed up with P. faeroensis :)

João Pedro Silva (I do say to my buddies "in case you find a pretty blue nudibranch... don't bother me")

Klas Malmberg Aquatilis Congratulations!

Rob Maller Congratz indeed Christian!!

Christian Skauge Thanks guys! It is always fun to see something "new", and it doesn't happen as often as it used to... way cool :-)

Torjus Haukvik You can try to "forget" some of your sightings, then it will happen more often again..! ;p

Eric van Andel the more you dive the lesser are the special sightings.... :-)

Rob Maller @ Torjus...yes, then all of a sudden it's there!!

Christian Skauge Smart move, guys :-D

Torjus Haukvik Exactly!

Helgi Winther Olsen I know a Faroe Islander looking for this small bastard!

Christian Skauge What?? You should have them all over the place - are they not your national animal?

Helgi Winther Olsen I often wonder if they were named by the Faroes because they are so bloody difficult to find there!

Torjus Haukvik Isn't it the normal way to do it? Name it after a place where it's hard to find? ;)

Christian Skauge Polycera inyourfacia :-)

Helgi Winther Olsen Polycera Whereareyouia

David Kipling Well they're releasing European beavers back into the Welsh countryside, so we'll bring some of these to Gulen and release them in return - given you your breeding population ;) Would you like some Tritonia lineata as well? A common as muck round here!

Christian Skauge LOL :-) I would trade you a Berghia norvegica for a Cuthona caerulea though ;-)

David Kipling Which of the two do you get at Gulen?

Christian Skauge The Berghia - and except for the original discovery in 1939 this is the ONLY place it has been found ;-)

Arne Kuilman Congratulations! These are also very rare in the Netherlands. Polycera quadralineata is very prevalent over here.

Henrique Nascimento Catarina Polycera faeroensis Farilhões (Berlengas) - Portugal 20130710

Giorgio Cavallaro (Y)

O Gajo Dos Olivais Happy meeting! (for me it was, heheheh) Felimare tricolor and Polycera faeroensis

O Gajo Dos Olivais Intense traffic moment! :) Felimare tricolor and Polycera faeroensis

Carlos Fernández-Cid Ramos Polycera Faeroensis. Galicia.Spain

João Pedro Silva One of the most common Polyceridae here in Portugal, Polycera faeroensis grows quite a bit a can be very abundant during the summer months.

Henrique Nascimento Catarina Polycera faeroensis Farilhões (Berlengas) - Portugal 20130710

Jim Anderson Scottish Nudibranchs updated www.nudibranch.org

René Weterings Hi Jim, is this a Polycera faeroensis?

Jim Anderson Yes Rene - this is Polycera faeroensis.

Peter H van Bragt Jim, do you also have a picture from the side of this animal including the gill region? cheers Peter H van Bragt

René Weterings That would be very interesting indeed!!

Tamsyn MAnn a few nudi's spotted in Plymouth today...

Tamsyn MAnn Names of them would be appreciated... am being lazy...

David Kipling First one looks like Onchodoris muricata to me ;)

Terry Griffiths Named a few for you Tam dont be lazy lol

João Pedro Silva Dawn Watson: Only those in Tamsyn MAnn's network can see the pictures. I can't see them either.

David Kipling Is this a FB feature that if you share an Album to a Group then only your Friends in the group can see the pics, João Pedro?

João Pedro Silva No, David. This depends on each person's privacy preferences. If you choose that your photos can only be seen by our friends then it doesn't matter in which group you share the photos: they will only be seen by your friends. Fortunately you can change this individually by picture or album without affecting your preferences.

David Kipling Ah I understand. Must remember that when posting to a Group. We should probably make a post in the group to let people know - its happened a few times.

Tamsyn MAnn Doh... didn't think of that. will sort out the status so you can actually see the pictures. I thought as I was sharing it, you'd be able to see them... Sorry!

Tamsyn MAnn I think I've sorted it...

João Pedro Silva I think now everyone can see them. Thanks, Tamsyn MAnn!

Christian Skauge Thanks :-)

João Pedro Silva 1st, 3rd and 7th are Polycera faeroensis. 8th is Jorunna tomentosa.

David Kipling Yah! Yes, Tamsyn MAnn, I can see them now. Well worth the wait ;)

Sarah Bowen And the spotty one is Thecacera pennigera! And the yellow bumpy one Doris sticta - both of which are good finds!

David Kipling Ooh, Doris sticta, not common!

Sarah Bowen Beat you to it!

David Kipling (I'd be more impressed with Sarah's ID of the D sticta if it wasn't labelled as such on the picture ...)

Terry Griffiths I was going to label them all before you had seen the pictures but then no fun.

João Pedro Silva (I knew it, all this stuff about hiding the pictures was a conspiration to avoid us to quickly identify the small beasts...)

João Pedro Silva (that is to be read with Peter Lorre's voice)

Terry Griffiths Joao i could put up one of albums to make you happy.

Tamsyn MAnn Thank you for the ID's! There were 2 Thecacera pretty close to each other. Terry found one, I found the other! x