Klas Malmberg Aquatilis I think this is an interesting act were you find two different species copulating, Flabellina lineata and Flabellina nobilis i suspect. Has anybody else similar pictures?
João Pedro Silva The only time I've seen different species mating: http://www.flickr.com/photos/jpsilva1971/5024995587/7
João Pedro Silva There's a discussion on one of Flickr's groups about this:
http://www.flickr.com/groups/nudilovers/discuss/72157626887608731/
João Pedro Silva And, of course, at the Sea Slug Forum (although no NE Atlantic species):
http://www.seaslugforum.net/find/abmating
Christian Skauge I have seen these two same species do the wild thing once as well :-) No pictures though...
John de Jong Hi Klas. Is these picture cropped? If not, what lens did you use?
Klas Malmberg Aquatilis Yes it is cropped about 10%. I usually use a konverter 2.0 and a 60 mm taking nudies. I really like that setup.
Erling Svensen From Trondheimsfjord. These F. lineata has quite strange colours. I did observe quite many with this colouration.
Ann Karin Matberg Hvor i Trondheimsfjorden så du disse?
Bernard PictonFlabellina lineata agg.
Kerry Lewis is this the same as C.lineata? If so, are we supposed to have ditched Coryphella?
Bernard Picton Kerry, I still like to use Coryphella but it was merged with Flabellina so I use the genera interchangeably I'm afraid. Flabellina is a huge genus worldwide and it will get split at some time in the future, in which case we will go back to using Coryphella for the ones which are most similar to the type species of the Genus, which is Coryphella rufibranchialis.
Erling Svensen Than I have this one, could it be F. lineata? No - I would say, but what then? Also some of these "unknown" species?
Jim Anderson I would say Flabellina lineata
Bernard Picton I've never seen F. lineata with such heavy white lines on the oral tentacles or such swollen cerata. Christian Skauge has ones like this, so this variation is not uncommon in Norway. Whether this might represent a distinct species would again be settled by some DNA sequencing. Worldwide this pattern of white lines occurs in several species of Flabellina.
Christian Skauge Actually, this has been the dominant variation at Gulen in March the last couple years. Sequencing should be under way in Trondheim...
Christian Skauge We count it as a F. lineata until then...
Christian Skauge In case you missed it: http://www.undervannsfoto.no/index.php?option=com_content&view=article&id=595%3Aflabellina-lineata-variations&catid=119%3Ablog-2012&Itemid=173
Erling Svensen I also put one from Gulen 2 weeks ago. do you think this is a F. verrucosa, or a Cuthona .pustulata (I have a feeling for the last one.....). All helps is pleased...
Erling Svensen ... or Flabellina lineata?
Christian Skauge This is one of those cryptic Flabellina lineatas we're seeing a lot of at Gulen. Jussi Evertsen has been looking into it, and we may be talking about this being two, possibly even three species. I hope they have some DNA on that soon :-)
Christian Skauge ...and I think Cuthona's always have smooth rhinophores, not verrucose like this one. Great picture btw!
Bernard Picton On the west coast of Ireland in spring, shallow water, very exposed with lots of Tubularia, you get a mass of Flabellina lineata and F. browni all eating the Tubularia. Some of the F. lineata have these multiple broken lines on the cerata, whilst others have the usual single line. I worried for a bit that F. browni was just a variant without the white lines, they are anatomically almost identical. But in a dish they seem a bit interested in each other, but seem to mate with their own type.
Bernard Picton Did you just take this, Erling? I’m surprised that they are adult and spawning at this time of the year?
Becky Hitchin Meager pickings!
Bernard Picton But Becky, they have fulfilled their destiny. They have converted most of the Tubularia biomass into the next generation of Coryphella lineata....
Erling Svensen Bernard - the picture is from May this year. I am "cleaning up" in old RAW files - so you are right. The picture are not from this time of the year. So the FLABELLINA are just one of my favorites.....
Peter H van Bragt Copepod exoparasites on nudibranchs.
Last week I found a cf Doridicola agilis on Flabellina lineata in the Eastern Scheldt, The Netherlands. As far as we know this is the very first observation of this copepod exoparasite on this nudibranch species. Over the past years we have found this copepod on various nudibranch species on the Dutch coast. Hosts are: L. clavigera, F. gracilis, F. auriculata, F. bostoniensis, J. cristatus (sometimes >100 parasites per host), J. hyalinus, A. glauca, A. papillosa, J. tomentosa and A. pilosa. On the initiative of Godfried van Moorsel, we have published two Dutch papers on these observations and now we are considering to publish also a paper in English in an international journal. Therefor we would like to call on you all to provide us with as many observations of D. agilis on these, but also on any other nudibranch species as possible. Please send us your observation with the following details: Host species, locality, number of parasites per host, date of the observation to peterunderwater[at]kpnplanet.nl.
Cheers
Peter H van Bragt
João Pedro Silva I've been putting up a set with parasites on nudibranchs so it'll be easy to send you observation records. Just not sure if you're interested in observations as far south as Portugal.
http://www.flickr.com/photos/jpsilva1971/sets/72157626974078442/with/4767925300/
Peter H van Bragt Hello João Pedro Silva that's great. Any observations will do.
João Pedro Silva I suspect there are other parasites on the other photos outside that set.
Carissa Shipman I am still so fascinated with the copepods found on nudibranchs. They are very challenging to study however!
Rachel Shucksmith Hi Peter, are there more than one species of parasitic copepod associated with nudibranchs?
Rachel Shucksmith Also I have photos from Shetland of copepods on a species which is like F lineata, but Bernard thinks its an undescribed species, all of these individuals seemed to have parasites whereas the true F. lineata did not.
Peter H van Bragt Hi Rachel, there are for sure at least two species of copepod endoparasites in Nuidibranchs: Lomanoticola brevipes and Splanchnotrophus angulatus. So far and as far as know there is only one exoparasitic copepod on nudibranchs for Dutch waters known. And this is Doridicola agilis. But I'm sure there is no solid evidence that all exoparasitic copepods that we find are all one and the same species. Who has the time and expertise to do some research on this?????
Rachel Shucksmith hmmm yes fair point, a nice student project or retired professor? is there a key? I assume as I am a fair bit north of you there is a chance that they would be different species.
Egidio Trainito Jim Anderson, Bernard Picton, and all the people in the group, I would like to have your opinion about the nudibranch I am posting. My opinion is that it is NOT Caloria elegant, but a sibling species: please look at the rhinophores (in C.elegans they're smooth), at the colour pattern of head and tentacles and at colour and assemblage of cerata. Thank you all.
João Pedro Silva I've got several shots of C. elegans, both with lighter cerata and with red cerata. I'm convinced it depends on the diet.
The rhinophores arent's completely smooth in neither colour forms I find here in Portugal:
http://www.flickr.com/photos/jpsilva1971/7408953742/
João Pedro Silva Same with yellow digestive gland visible inside the cerata: http://www.flickr.com/photos/jpsilva1971/5654832216/
João Pedro Silva But the most striking is this one where the digestive gland colour varies along the length of the cerata:
http://www.flickr.com/photos/jpsilva1971/4784556408/
João Pedro Silva All my photos of C. elegans can be found here: http://www.flickr.com/photos/jpsilva1971/tags/caloriaelegans/
O Gajo Dos Olivais I noticed that the rinophores aren't smooth. Maybe the "definition" of smooth is not quite right :) All pictures I've seen from JPSilva and others, showed the rinophores with those "bumps". But they are not lameled...
João Pedro Silva They appear to have small translucent papillae more conspicuous on the anterior side where there's white pigment.
Egidio Trainito Papillae are not lamellae, the first ones are only on the front side the second ones are only on the rear side. Is this in the variability of the species? I don't think so. The original description of C.elegans and following papers such as Schmekl and Portmann say smooth rhinophores. My records of C.elegans are all quite different than this (which appeared in recent years) and all with smooth rhinophores. Is there anybody in the world willing to study some specimen I have collected?
Bernard Picton Egidio, you don't say where the picture was taken? I agree, these rhinophores are not like the animals I've seen in the UK and Ireland, where the rhinophores have rounded papillae. They are not smooth. When I have seen Caloria elegans in the Mediterranean they have been much smaller, so perhaps the papillae develop in larger animals.
Your animal seems to have lamellae on the rear side of the rhinophores, which is certainly odd.
I just changed the photo on my site to a close-up. http://www.habitas.org.uk/marinelife/photo.asp?item=bep2_8297
Egidio Trainito Bernard, the photo was taken in Sardinia and this form of nudibranch appeared in recent years: while C.elegans is still present but non common, this has become very common in the places where I commonly dive, north east coast of Sardinia. It happened to me to find the two forms in the same dive spot. What looks strange to me are the lamellae on the rear side of the rhinophores, which I have never seen on C.elegans.
Egidio Trainito Bernard, I've looked at your photo and I've never seen in the Mediterranean C.elegans so clear and developed papillae. Quite strange to me.
Bernard Picton Very interesting. If you look at SSF there are quite a few photos, some look as though they may have lamellate rhinophores. It could be that we are dealing with several species here. It should be easily possible to resolve this with DNA sequences. If you have two things in the same place they are "sympatric" which should mean complete genetic isolation. Slightly more tricky if our UK ones are different, because they could be isolated by distance. Even then CO1 (barcoding) sequences in nudibranchs seem to be reliably distinguishing species.
http://www.seaslugforum.net/showall/caloeleg
Egidio Trainito Bernard, this is exactly what I am thinking of: I have collected some specimen of the false Caloria and as soon as I am able to collect the true Caloria I will send them for a DNA test to Genoa university. Your opinion conforts me.
João Pedro Silva Re-checked some of my photos and found some of these Caloria elegans with distinctively lamellate rhinophores:
http://www.flickr.com/photos/jpsilva1971/6721622707/
http://www.flickr.com/photos/jpsilva1971/6721625063/
All have red digestive gland. However, some with red digestive gland have papillae and not lamellae on the rhinophores.
Bernard Picton I think you need to change the text in the book, this must be a second species. Of course, we already have two names available, Caloria maculata with type locality in Italy (the lamellate-rhinophored one?) and Caloria elegans with type locality South coast of England. As I wrote the paper which synonymised them this is a bit of an embarassment!! :-)
Bernard Picton One thing to remember is that rhinophores do seem to have considerable evolutionary plasticity. Flabellina pedata and F. affinis, Flabellina trilineata and Flabellina lineata...
http://californiadiver.com/flabellina-trilineata-nudibranch/
João Pedro Silva The photos we have on the book for Caloria elegans all have papillate rhinophores :)
Bernard Picton I think the text might include these ones a bit?
Bernard Picton I suspect that Aeolids are derived from an ancestor which had lamellate rhinophores, so the smooth state would then be a simplification and likely to happen many times.
Lucas CerCur I agree with this view.
Lucas CerCur So, Caloria elegans....another case of study.
Tamsyn MAnn Hi! Is this a Coryphella lineata? Thanks.
Peter H van Bragt Hi Tamsyn, No it is not a Coryphella lineata. It might have been two Coryphella lineata's but we have changed the name to Flabellina lineata some time ago. ;-) The white pigment lines on the cerata, head tentacles and body are very distinct. Cheers Peter H van Bragt
Tony Gilbert I still think of these as Coryphella lineata, but they are now Flabellina, as the parent has been identified as a Flabellina.
Tamsyn MAnn Cool, thanks. Apart from the name change, at least I got the ID right!! :-)
Keith Hiscock Following-on Erling's theme of "what is eating the Corymorpha?", I am struggling with this one - I have labelled it Coryphella ?browni. Where I dive, I am lucky to see 20 Corymorpha (this year) in a part of one dive. Any authoritative identifications?
Christian Skauge I would guess Facelina bostoniensis on the big one :)
Tony Gilbert I'd be still thinking C. browni, as I don't see any blue tinges around the head or cerata, and the food source for browni is specific to Tubularia.
http://www.flickr.com/photos/tonyjgilbert-images/3781037318/in/set-72157624864203330
Jim Anderson Looks very like Facelina bostoniensis to me - are the white patches behind the head not significant. I've not seen that on F. browni.
Tony - I think yours is F. bostoniensis too - see Bernard Picton's description here - http://www.habitas.org.uk/marinelife/species.asp?item=W15260
Christian Skauge I think Tony's are F. bostoniensis too! In Norwegian the are called "red headed flabellina".
Tony Gilbert Thanks guys, a mis-id in 2008 -> I hadn't revisited until now. Yes, I agree with you, this is definitely much larger and bulkier than C. browni, no blue iridescence that I can see.
The image of Bernards was exactly like the one that was found on a Eigg dive site we dived last year.
Of course now you've whetted my curiosity I've checked the 2010 ones, and I think they are the same mis-id'd:
http://www.flickr.com/photos/tonyjgilbert-images/5093719938/in/set-72157625217786802
http://www.flickr.com/photos/tonyjgilbert-images/5093722214/in/set-72157625217786802
The AKKA is a fantastic reff-dive, I always reef dived it in the past, its a haven for marine life, it should be a protected wreck. Its a shame Clutha has now gone. Anyways, in 2010 we discovered an area that consistently has these nudibranchs in and eggs, probably because their food sources are so plentiful. The shot was midships port-side, and an area to the rear of the bridge, underneath a fallen mast, this was literally covered in them. I do miss diving the AKKA for this reason.
Many thanks.
Christian Skauge The first one I would say is a Facelina bostoniensis, the second one is a Flabellina lineata just like you have written.
The Facelina is one of the few species we continue to find during the summer here in Norway, and they grow bigger and bigger. By July we have to start watching where we put our hands :-D
Tony Gilbert I can imagine, its all the voracious munching they do. We see fields of stripped Tubularia in Menai Straits in North Wales.
Coryphella lineata, me think so too. I think the same colourations are definitely from the same food sources they are eating.
Wendy Northway help needed IDing this nudi - Loch Fyne again at about 10-15m. Sorry for the quality of picture - as usual, had the wrong lens on camera for small stuff!
David Kipling Very small Flab lineata?
Liz MorrisFlabellina lineata? That's a new one on me David Kipling, or do you mean Coryphella lineata? http://www.habitas.org.uk/marinelife/index.html Wendy, I'm afraid I'm having a nudi confidence crisis here, so will admit I again have no idea!! Might be worth another ask of Claire Goodwin if she's not too busy?
David Kipling Yes, Flab is synonym for Coryphella. Not sure which is most uptodate.
David Kipling http://www.seaslugforum.net/find/flabline
David Kipling Jim's album of this species : http://www.nudibranch.org/Scottish%20Nudibranchs/flabellina-lineata.html
Liz Morris thank you david - you are wise :)
David Kipling (which is a synonym for 'sad geek'!)
Rob Spray Euphemism I reckon :-)
Liz Morris I think geeks are generally very cool. The rest of the world just need to catch up!
Terry Griffiths A new nudibranch for my collection but no ID done the books and the web ,it was about 5mm in size sorry not a great photo though
Andy Rapson Possibly Coryphella browni?
Terry Griffiths Thanks Andy but white lines on the rhinophores and oral tentacles made me question that one and due to the reason i spotted this one the bright yellow colour.
Bernard Picton My comment fell off too? I agree Dawn, you can see the white lines on the oral tentacles. I'll be calling them Flabellina lineata in line with current world opinion, but expect that some Coryphella will reappear when the Family Flabellinidae gets revised with DNA phylogeny.
Neil Garrick-Maidment FacebookTerry you’ve let me down, there was me thinking you were the expert on all nudibranchs !!,
Its very beautiful isn’t it.
Best wishes
Neil
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Neil Garrick-Maidment FacebookForgot to say where did you photograph it??
Best wishes
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Neil Garrick-Maidment FBNA
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Terry Griffiths Hi Neil this one done at Eastern kings feel free to look on the new website but still work in progress.. www.tgup.co.uk
Andy Horton Useful link: http://www.britannica.com/EBchecked/topic/458573/phylogeny
Ingrid Thea Ølberg Could someone help me with this one?
My nudienerdfriend calls it a "AnnoyingSh**Snail"
Somehow... I really don't believe this to be correct... We have considered a few, both withing the Cuthona and Eubranchus, but come up short. Have ended up on Flabellina lineata as the most likely candidate.
About 20m deep in Bergen area, Norway. The snail is about 2mm. Taken with D700, 105mm, and slightly cropped.
Sebastian Slettedal Hubertus Probably not F. lineata, as it doesent seem to have the line running alongside its body. How about F. verrucosa?
Ingrid Thea Ølberg We have considered that one as well, however it is insanely small, and the cerrata seems a bit off.
Ian Smith I think Sebastian's suggestion is better than F. lineata. See my other comment on Erling's 17th May posting. Here's a 5mm F.lineata for comparison.
Bernard Picton Yes, I think a juvenile of the true F. verrucosa. We had many adults in Norway in March, so they would have died off shortly after that and you should start seeing the next generation about now. Nice to see the characteristic swollen cerata and heavy-looking tentacles in a small juvenile.
Christian Skauge I agree - and there are millions of them around the Bergen area right about now - from 3-15 mm :-)
Ingrid Thea Ølberg Well this one clocked in at max 2mm. I love my new cannisterlight. It is perfect for looking for tiny nudis.
Lucas CerCur I'm starting the co-supervising of an Italian student from Rome. The topic of her Msc Thesis will be the systematics of Flabellinidae from the Mediterranean. Most of them were described from Mediterranean localities. However, Flabellina lineata was from UK. So, I'll would acknowledge very much to have some material of this species from UK. 3-4 specimens should be enough.
Lucas CerCur I would be to confirm this. I'm in the train.
Lucas CerCur If so, then, my "request" should be transferred to the Scandinavian region.
Lucas CerCur Christian, I have confirmed your remark. So, I would need material (3-4 specimens) of F. lineata from Scandinavian region, if possible.
Christian Skauge I shall see what I can do ;-)
Lucas CerCur Thank you so much. I want avoid surprises and I want to be sure that Mediterranean and Atlantic material belong to the same species.
Bernard Picton Lucas, Torkild Bakken and Jussi Evertsen already presented DNA barcoding data showing that F. lineata is at least three species in Norway. Several other species are from the UK so we've agreed to work on them together...
Lucas CerCur Well Bernard. We can talkabout this. The first issue that arise in front of me would be: Then, what it Flabellina lineata? Is it possible to link some of the 3 species under the name F. lineata, with the aninmals described by Lovèn?
Lucas CerCur If not possible, it would be necessary to determinate a a diagnosis for F. lineata as well as to deposit material attributed to it.
Lucas CerCur Do Somebody knows if Lovèn's material of F. lineata is deposited in a Museum?
Lucas CerCur If not, a new type material shoud be designated and housed in a Museum.
Christian Skauge I don't know, you should probably talk to Jussi Evertsen and Torkild Bakken about this.
Bernard Picton We made a short film showing some of the Flabellinidae from Norway.
https://review.bellmedia.ca/view/759301023
Jim Anderson F. lineata are fairly common around the sites I am diving just now - who do I send my samples to? They will be in concentrated NaCl as that is all I will have available at present.
Lucas CerCur Well, Jim, I think that British specimens should be compared with Norwegian material in order to know to which of such "three" species joint it. Isi't it Bernard? It seems to me that this is the more coherent procedure.
Lucas CerCur I'll have interest to have British material of course, but the first step should be as I have stated, I think.
Lucas CerCur Is anybody of you attending to the WCM2013 in Azores, next July?
Lucas CerCur This would be a very good opportunity to coordinate actions.
Jussi Evertsen Our molecular results indicate that there is more than one species of lineata and we have with Bernard so far been able to distinguish three different types of pigmentation on specimens from Norway
Lucas CerCur Jussi, are you attengong to the WCM2013 in Azores next July?
Jussi Evertsen Unfortunately I am preoccupied with fieldwork in that period on a non-nudirelated project
Christian Skauge You guys should all meet up at next year's Nudibranch Safari at Gulen! And actually... I'm working on a cunning plan to make that possible. Stay tuned!
Lucas CerCur I'm starting the co-supervising of an Italian student from Rome. The topic of her Msc Thesis will be the systematics of Flabellinidae from the Mediterranean. Most of them were described from Mediterranean localities. However, Flabellina lineata was from UK. So, I'll would acknowledge very much to have some material of this species from UK. 3-4 specimens should be enough.
Lucas CerCur I would be to confirm this. I'm in the train.
Lucas CerCur If so, then, my "request" should be transferred to the Scandinavian region.
Lucas CerCur Christian, I have confirmed your remark. So, I would need material (3-4 specimens) of F. lineata from Scandinavian region, if possible.
Christian Skauge I shall see what I can do ;-)
Lucas CerCur Thank you so much. I want avoid surprises and I want to be sure that Mediterranean and Atlantic material belong to the same species.
Bernard Picton Lucas, Torkild Bakken and Jussi Evertsen already presented DNA barcoding data showing that F. lineata is at least three species in Norway. Several other species are from the UK so we've agreed to work on them together...
Lucas CerCur Well Bernard. We can talkabout this. The first issue that arise in front of me would be: Then, what it Flabellina lineata? Is it possible to link some of the 3 species under the name F. lineata, with the aninmals described by Lovèn?
Lucas CerCur If not possible, it would be necessary to determinate a a diagnosis for F. lineata as well as to deposit material attributed to it.
Lucas CerCur Do Somebody knows if Lovèn's material of F. lineata is deposited in a Museum?
Lucas CerCur If not, a new type material shoud be designated and housed in a Museum.
Christian Skauge I don't know, you should probably talk to Jussi Evertsen and Torkild Bakken about this.
Bernard Picton We made a short film showing some of the Flabellinidae from Norway.
https://review.bellmedia.ca/view/759301023
Jim Anderson F. lineata are fairly common around the sites I am diving just now - who do I send my samples to? They will be in concentrated NaCl as that is all I will have available at present.
Lucas CerCur Well, Jim, I think that British specimens should be compared with Norwegian material in order to know to which of such "three" species joint it. Isi't it Bernard? It seems to me that this is the more coherent procedure.
Lucas CerCur I'll have interest to have British material of course, but the first step should be as I have stated, I think.
Lucas CerCur Is anybody of you attending to the WCM2013 in Azores, next July?
Lucas CerCur This would be a very good opportunity to coordinate actions.
Jussi Evertsen Our molecular results indicate that there is more than one species of lineata and we have with Bernard so far been able to distinguish three different types of pigmentation on specimens from Norway
Lucas CerCur Jussi, are you attengong to the WCM2013 in Azores next July?
Jussi Evertsen Unfortunately I am preoccupied with fieldwork in that period on a non-nudirelated project
Christian Skauge You guys should all meet up at next year's Nudibranch Safari at Gulen! And actually... I'm working on a cunning plan to make that possible. Stay tuned!
Christian Skauge Bernard Picton: Here's the promised post about the Flabellina lineata. Sadly, when writing it I realized that my pictures doesn't really show the discussed variations too clearly... I must stop trying to nail arty photos and concentrate more on getting the details right!
Andy Horton The spam has been removed and the poster banned. This is my first experience on facebook.
Andy Horton First experience of spam. This is because it is an open group.
Andy Horton Now I am having trouble with facebook over posting. I should have said first experience of spam. My messages are disappearing.
Andy Rapson We use a database of spammers to stop them from joining our forum on our main website, in the last four months over 220 have been prevented from joining. It's just one of those things we have to deal with on any type of forum these days.
Bernard Picton Dawn Watson, perhaps this is what happened to our posts on Flabellina lineata? Note need for careful screening of new group members.