Thecacera pennigera

Mark Farrer Thecacera pennigera Blairgowrie 4mtrs approx 20mm long.

Tracey Howley wow

Steve Wright Luv these guys!

Mark Farrer Yeah there pretty cool Steve Wright.

Steve Wright Blairgowrie rocks..never ceases to amaze me what u guys find there,the diversity of Nudi's is amazing!

Mark Farrer Your 100% correct Steve Blairgowrie is simply AMAZING.

Deb Aston Amazing pic

Mark Farrer Thank you Deb Aston.

Tini Palar beautiful

Mark Farrer Thank you Tini Palar

Mark Farrer Thecacera pennigera Blairgowrie 17/11/12 approx 40mm long

Steve Wright The variety and beauty of the Nudi's under Blairgowrie pier never cease to amaze!

Mark Farrer It's an amazing site Steve

Steve Wright One of my faves Mark!

Mark Farrer Yeah mate it's a special place love diving it I try to dive it weekly

Mark Farrer Blairgowrie 21/7/12 5mtrs approx 20mm Thecacera pennigera

Ashley Missen Thecacera pennigera - Blairgowrie Pier Olympus XZ-1 Nauticam NA-XZ1 Housing YS250pro, ys110a, 2x sola 600, 2x sola 800, 2x Dryon Macro F8 ISO 100 1/125

Andrew Thomson Great shot Ash. Doing a night dive there tonight.

Ashley Missen This guy was in the main corner right on top of a shell - easy spot

Carolyn Thomson Nice shot

Alan Shaw Great shot Ash.

Michael Liarakos Great shot Ash. Got the same critter, but didn't come out that well!

Ken Thongpila Nice shot Ashley :-)

Andrew Thomson Saw about 20 of these guys on the night dive with Mark Farrer

Ashley Missen Send the Stats In then - they all down the end in the deeper water

Ashley Missen Thanks everyone for the feedback - Cheers Ash

Ashley Missen Thecacera pennigera Front on - Blairgowrie Pier Olympus XZ-1 Nauticam NA-XZ1 Housing YS250pro, ys110a, 2x sola 600, 2x sola 800, 2x Dryon Macro F8 ISO 100 1/100

Leentje Vervoort My husband made a similar one once for the birthdays of two beloved nudibranclovers

Leentje Vervoort Thecacera pennigera

Isabella Chowra What a wonderful group! Hope you can help me with some ID, my nudi-knowledge is quite limited. I was told this was a Pikachu nudibranch (Thecacera pacifica), but it doesn't seem quite right. Seen in Lembeh.

Roy Arthur David Lontoh Thecacera sp?

Isabella Chowra Meaning you think that it hasn't been described yet or just that it's some kind of Thecacera?

Roy Arthur David Lontoh My reference is only nudibranch encyclopedia :) you may wait for inputs from the experts here.If you dont mind, please also share the approx length of this nudi :)

João Pedro Silva I think this fits some variations of Thecacera pennigera but... with the global distribution of this species it may actually be a complex of species... or it has indeed been spread by ships. http://www.nudipixel.net/photo/00008662/

Isabella Chowra Thank you guys! Yes João, it seems possible that it's a T. pennigera. Close enough, even if it's a range of subspecies. :)

João Pedro Silva We find it here in Portugal (almost all the way around the world!) but with a lot more dots... yet, this variation is also found in the Indo-Pacific. http://www.flickr.com/photos/jpsilva1971/6911346679/

Marilyn Holland Isabella I love these guys nice job

Isabella Chowra Thank you Marilyn! I like them too, especially how this one seems to hang on for dear life. ;) Wow João, that one looks completely different. Well, completely different but similar. I guess one can expect some differences between such far away habitats, but it does feel as if there could be some subspecies going hiding in there. :) Guess time will tell. Not jealous of people that have to categorize the nudies. ;)

João Pedro Silva Time will surely tell, Isabella Chowra... but with some help of DNA :)

Jaime Romero ¿.................? Lanzarote-Canary Islands

João Pedro Silva Thecacera pennigera

정대위 I'm so interesting about the rhinophore sheath of this species.

João Pedro Silva It's characteristic of the genus.

Brian Sellick so cool

Geoffrey Van Damme Blairgowrie 15mm 5mtr

Blogie Robillo Wish we could see the entire body more clearly... Looks like a lovely nudi!

Ashley Missen Nice Thecacera pennigera

Mark Farrer Blairgowrie 20/5/12 5mtrs approx 35mm long

Ashley Missen Thecacera pennigera

Mark Farrer Blairgowrie 12/5/2012 4mtrs and approx 20mm long

Andrew Thomson Nice spot and photo, haven't seen one of those for a while, well done

Mark Farrer Thanks Andrew this is a new 1 for me and seen 3 all very close by

Alistair Merrifield Winged thecacera.

Mark Farrer Thanks Alistair

Ashley Missen Naughty Alistair using common names - correct Name Thecacera pennigera - Mark last time I found them they where like that too - Nice find

Alistair Merrifield Guess I'm not a real scientist. ;)

Alistair Merrifield Saw one in Chowder bay, Sydney last week, BTW.

Ashley Missen Thanks For the Stats Alistair

Geoffrey Van Damme

Ashley Missen Thecacera pennigera Montague 1815

Wilfried Bay-Nouailhat A Polycera quadrilineata thinking it is a Thecacera pennigera ;-) Morgat, Brittany, 5 meters

Lucas CerCur This specimen is very interesting! However, it's clear that is not a Thecacera pennigera. Have you collected?

Wilfried Bay-Nouailhat No, P. quadrilineata have very varied coloration and this one was comic because it looks like T. pennigera

Terry Griffiths Very common around the SW Devon and Plymouth area.

João Pedro Silva Tony Gilbert has similar photos: http://www.flickr.com/photos/tonyjgilbert-images/5964638520/in/set-72157630248775266

Lucas CerCur Nevertheless, this morphotype (and others) would be interesting to study molecularly.

Arne Kuilman Whoa, never seen this yet

Ashley Missen How to pronounce this little guy from Blairgowrie pier Australia Thecacera pennigera - Thecacera = thee ka ser ah pennigera = pen ig er ah

João Pedro Silva One doesn't know exactly how latin sounded like (actually, it may have sounded different according to location), only what latin derived languages sound now. But we're free to speculate. "Thecacera" comes from greek: θήκη. So it should be more "theh" and not "thee". Many latin derived languages (my own, Portuguese, is an exception) use mostly open vowels and the "g" is soft in this situation (preceding "i" and "e") so I imagine "pennigera" more like "peh-nee-jeh-rah". But I repeat: this is pure speculation. Bill Rudman had a post about pronounciation at the Sea Slug Forum but unfortunately it appears to have vannished during the last server maintenance and the Australian Museum doesn't care much about the importance of the forum.

Lucas CerCur This is the eternal discussion...

Lucas CerCur We, people from latin countries, pronounce the latin names very different...

João Pedro Silva As long as they're written in a way we can communicate, I don't mind any pronounciation. Let's not forget some names are just latin versions of words (and even initials of institutions, Conus cepasi jumps to mind) in other languages.

Ashley Missen This was the way to pronounce it from an email I got from Dr Richard Willan - that is what he email to me

João Pedro Silva As I said previously, it's mostly speculation. I just gave my perspective as a native speaker of a latin language. Too bad Bill Rudman's post on this matter on the SSF is now offline.

Geoffrey Van Damme Blairgowrie 15mm thecacera pennigera ,and i think the small green one is placida dendritica 5mm.

Patrik Good Missed your posts Geoffrey. Glad you are back with a bang.

Lucas CerCur Another good project: Is the same species all that is named Thecacera pennigera around the World?

João Pedro Silva Only found it once here in Portugal but apart from the size of the spots I cannot see any differences. It's most likely to have some internal differences (thinking about the radula here) as its diet will probably vary according to local availability. Further studies would confirm (or not) if its the same species and also confirm (or not) the theory regarding their spread around the world. http://www.flickr.com/photos/jpsilva1971/6911346679/

Geoffrey Van Damme Thanks Patrik Good ,nudis have been scarce here at Blairgowrie for a few months ,seems to happen when the water warms over summer .Temp is getting down again now and nudis are starting to show again so hopefully will start to find some new ones again.

Geoffrey Van Damme Blairgowrie 15mm thecacera pennigera ,and i think the small green one is placida dendritica 5mm.

Richard Yorke Can anyone help with this worm. I feel sure I have seen it in "Marine fish & invertebrates of Northern Europe" but unfortunately I don't have a copy. I took the picture off the Isle of Muck, NW Scotland on a wall.

David Kipling Ah yes, that one - very striking colour! I've only ever seen the end of a disappearing one as by-catch on a photo. How big was this Richard, do you recall?

Andrew Mackie Myrianida pinnigera, I think - with stolons. It is an autolytin syllid polychaete.

David Kipling What does pinnigera mean? I've seen it as a species name for several genera (eg Thecacera pinnigera, the spotty nudi).

Andrew Mackie I think it means 'bearing pinnae'

João Pedro Silva Thecacera pEnnigera, David :) Only saw this worm once. Well.. saw it in the photo much later: http://www.flickr.com/photos/jpsilva1971/5764153779/

Andrew Mackie Arne Nygren has M. fasciata as synonym of M. pinnigera. See http://www.marinespecies.org/aphia.php?p=sourcedetails&id=23023

João Pedro Silva As for the latin, pinnigera should come from pinna as flap/wing/feather, and most probably aludes to the flaps on the sides or the feathered overall aspect of the animal.

Richard Yorke Thanks very much. The length of this one was about 4" (sorry, showing my age! 10cm). You can just see the edge of a smallish sea loch anemone on the left side to give you a rough scale. Reading about it, the thin 'tail' is a chain of asexually produced offspring so the worm itself is only 3cm or 4cm long. The youngest offspring is obviously nearest the worm, and they get bigger as they get older (quite visible in this picture) until they break off and become independent.

David Kipling So what does pennigera mean then João Pedro? I see it referred to as the 'winged' Thecacera, so perhaps same derivation?

Andrew Mackie I would think pennigera and piningera mean the same

João Pedro Silva Yes, they do mean the same. Actually, "pen" has the same origin (~feather/plume). The word for feather in Portuguese is still "pena".

Wilfried Bay-Nouailhat A Polycera quadrilineata thinking it is a Thecacera pennigera ;-) Morgat, Brittany, 5 meters

Lucas CerCur This specimen is very interesting! However, it's clear that is not a Thecacera pennigera. Have you collected?

Wilfried Bay-Nouailhat No, P. quadrilineata have very varied coloration and this one was comic because it looks like T. pennigera

Terry Griffiths Very common around the SW Devon and Plymouth area.

João Pedro Silva Tony Gilbert has similar photos: http://www.flickr.com/photos/tonyjgilbert-images/5964638520/in/set-72157630248775266

Lucas CerCur Nevertheless, this morphotype (and others) would be interesting to study molecularly.

Arne Kuilman Whoa, never seen this yet

David Fenwick Snr I was wondering if someone could take a look at a nudibranch for me on behalf of Dr. Frank Gloystein. The image was taken in October 2006, at a depth of about 8 m, in Whitesand Bay, Sennen Cove, Cornwall, close to the wreck of Beaumaris.

Brendan Oonk I would call it Polycera quadrilineata

João Pedro Silva I'm not so sure as it clearly shows at least 6 oral processes. It reminds the body pattern of Tony Gilbert's Polycera sp. posted yesterday: http://www.flickr.com/photos/tonyjgilbert-images/5964638520/ However, his shot shows an individual with no yellow pigment on the rhinophores, oral processes, branchia and extra branchial processes.

David Fenwick Snr Yes it reminded me of the same which is why I've posted it here.

Brendan Oonk quadrilineata occasionally has 6

Claire Goodwin I go with Polycera quadilineata too - although the colouration did put me in mind of Thecacera pennigera for a moment! There is a thread here http://www.seaslugforum.net/showall/polyquad which shows a juvenile with similar colouration and although P. quad does usually have 4 processes it can occasionally have more.

Tony Gilbert Re Joao's comment. "However, his shot shows an individual with no yellow pigment on the rhinophores, oral processes, branchia and extra branchial processes." Interesting that you pointed this out, different yet alike. Perhaps a regional variation of P. quad, as it seems from The url Claire supplied that there can be quite a variation. So, the specimen from Davi's shot ties in nicely with my shot from Greenends Gully in Eyemouth, nice one. http://www.flickr.com/photos/tonyjgilbert-images/4907558557/in/set-72157624761052704/. thanks

Geoffrey Van Damme Blairgowrie 15mm thecacera pennigera ,and i think the small green one is placida dendritica 5mm.

Patrik Good Missed your posts Geoffrey. Glad you are back with a bang.

Lucas CerCur Another good project: Is the same species all that is named Thecacera pennigera around the World?

João Pedro Silva Only found it once here in Portugal but apart from the size of the spots I cannot see any differences. It's most likely to have some internal differences (thinking about the radula here) as its diet will probably vary according to local availability. Further studies would confirm (or not) if its the same species and also confirm (or not) the theory regarding their spread around the world. http://www.flickr.com/photos/jpsilva1971/6911346679/

Geoffrey Van Damme Thanks Patrik Good ,nudis have been scarce here at Blairgowrie for a few months ,seems to happen when the water warms over summer .Temp is getting down again now and nudis are starting to show again so hopefully will start to find some new ones again.

Nicola Faulks Found on the Farne Islands - with its blue and yellow spots, can anyone give me an ID? It was about 5mm long, hence the slightly dodgy photo quality!!

Paula Lightfoot Odd! You can get Polycera quadrilineata with black and yellow dots instead of just yellow stripes and this would be the right habitat for Polycera (eating sea mat bryozoan) but I can't see yellow tentacles around the mouth.

Paula Lightfoot ps drysuit fixed see you tomorrow :D

Nicola Faulks brill, I did wonder if it was an a strange form of polycera, it was very unusual and pretty, but so small and the dots made my camera have a focus hissy fit!! Fingers crossed for tomorrow, see you then!!

Paula Lightfoot Dawn what do you think about Thecacera pennigera? That has blue and yellow spots, usually larger spots than in Nic's photo but not always. If it is this, it would be a very interesting record as the T pennigera records on the NBN Gateway are all south and west coasts. However, T pennigera eats Bugula not sea mat so I guess the evidence is pointing towards a dotty Polycera?!

Paula Lightfoot Actually looking at it again, I can see two oral tentacles and T pennigera doesn't have oral tentacles. Ok Polycera!

Nicola Faulks Ah, the boring answer is usually the right one!! I have recorded it as Polycera....

João Pedro Silva Thecacera pennigera Local: Sesimbra, Portugal Spot: Batelão Profundidade: 10m Data: 20-02-2012

María Eugenia Suárez Parece sevillana con traje de faralaes!

João Pedro Silva E o mais estranho é que se trata de uma espécie com distribuição mundial, presente no Atlântico e no Indo-Pacífico. No Nudipixel podemos ver fotos de Portugal, Espanha, França... África do Sul, Austrália, Índia, Indonésia e Tailândia! http://www.nudipixel.net/species/thecacera_pennigera

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