Dendrodoris denisoni

Topher Fletcher Dendrodoris denisoni at goldcoast seaway 25/8/13

Topher Fletcher have more of different nudis found in the same area over the last 9 months

Gary Cobb Beautiful species!

Topher Fletcher tis quite a pretty thing

Topher Fletcher bit more light here

Gary Cobb Here is a photo of an adult Dendrodoris denisoni (Angas, 1864) 70 mm long.

Blogie Robillo Fabulous!

Karl Fehlauer Dendrodoris denisoni Rockingham, WA Canon G12, YS 110A with a x3 Macro wet lens F5.6 @ 1/60th ISO 100 Visibility - 4m!!

Albert Hartono Dendrodoris Denisoni

Albert Hartono Tulamben Bali Indonesia

Lindz Warren This is now recognised as Dendrodoris krusensternii (Gray, 1850) as it is an older synonym (ie the first one to describe the species). D. denisoni was by (Angas, 1864).

Albert Hartono Thank you for ID Lindz Warren.

Patrik Good Wow, Lindz, that is new information for me and probably a few more people. So, D. denisoni is not in use any more at all? Can you refer to a recent publication reviewing the descriptions of this species? Thank you. One of my favourite nudis. Great shot, Albert Hartano, by the way. Was surprised about the substrate. I am finding it on a quite regular basis but it's always hidden and tucked away.

Lindz Warren You can see the details in http://www.marinespecies.org/aphia.php?p=taxdetails&id=550448 Unfortunately I don't have the paper in which the change was documented but it is: Valdés Á. & Fahey S.J. (2006) Dorid nudibranchs described by J.E. Gray in M.E. Gray, 1842-1857 (Mollusca Opisthobranchia). Records of the Western Australian Museum Supplement 69: 95-102. Perhaps someone who has a copy could upload a pdf for everyone? :-)

Chris Spence After being inspired over the last few months by the likes of Adriano Morettin, Debi Henshaw and Marcello Di Francesco I finally got my act together and used my Snoot for the first time today, and I gotta say it's not that easy! But I soldiered on here is one of the results. As always....welcome comments for improvement as there is a lot of room for it! I'm not great with Nudi ID's but closest I can find is Dendrodoris Denisoni. Danny Daniel Messom actually told me the name this morning but I forgot it so he will set me right. Ammo Jetty WA Today D300s VR105mm +2Dioptre (Dry) 1 z240 with Snoot Manual mode other turned off. f16 1/250s iso 200.

Johny Leffelaer ID is correct.;-)

Chris Spence thanks Johny!

Maurice Hein Think i saw the same type this morning in Hong Kong waters. Was this really big? Nearly like a spanish dancer size?

Maurice Hein Edited and uploaded my pictures today. It's exactly the same type of nudibranch i found. https://www.facebook.com/photo.php?fbid=349804145081677&set=a.349800601748698.82943.115141245214636&type=3&theater

Ah Ken Hi Chris, I like snoot too and yes I have to agree that its not easy to use it especially shooting a small little critter. Saw from ur other post that mentioned u are using the snoot produced from Scubacam? IMHO,for shooting small critter,u need a smaller size/diameter snoot so that the light/beam is just enough to cover the critter and the corners or around the critter is dark/black. Cheers

Chris Spence Ah Ken it is a seahorn Snoot for the z240. It has multiple options for 5, 15, 24 and 45 degree beams. I used the 24 degree beam for this shot and the Fingered Dragonet I posted http://www.facebook.com/#!/photo.php?fbid=3368214876774&set=o.166086283477622&type=1&theater

Chris Spence Here is an article by Scott Gietler on his web page where he tested the Seahorn. http://www.uwphotographyguide.com/underwater-snoots

Alistair Merrifield Yep - it's a denison!

Chris Spence Thanks Alistair!

Noriyuki Otani Dendrodoris denisoni at Owase Mie Japan depth 13m water temperature 18℃ NIKON D600 2013/4/14 60mm 1/80s F18 ISO400 -0.33EV NIKONOS SB105 SEA&SEA YS110α

Qing Lin 18℃,coid.Nice shot Noriyuki!

Noriyuki Otani Thank you, Qing!

Alex Barth Nudi / Bali 2013 - Tulamben Canon G10 1x INON D-2000 , 1x INON Z-240 Subsee +10 F4 1/160 ISO 80

Ron Silver Dendrodoris denisoni

Seungchul Yang Jeju Island, Korea

Ron Silver Dendrodoris denisoni

Seungchul Yang Thanks! ^^

Giorgio Cavallaro (Y)

Caitlin Woods Hey guys, anyone know what this is? Thanks :)

Steve Smith Dendrodoris denisoni :)

Chris Cunnold I saw a discussion on another nudi page recently about a name change for this species - it is now Dendrodoris krusensternii according to that discussion. http://www.marinespecies.org/aphia.php?p=taxdetails&id=550448 .

Komang Agus Nudi...? OLYMOUS TG2 in housing with handhald torch iso 800 f 49 1/400,

Elisabeth Rosentreter wow. never seen one like this !

Patrik Good Yes, it is a nudi ;-) It is the one we are talking about at the moment. It is Dendrodoris denisoni (officially not an accepted taxa any more) or Dendrodoris krusensternii (should probably be krusensterni with one i) according to a scientific paper and WoRMs database. If ever you want to know the ID of a branch that we found on a dive together like this one I am happy to look into it. I normally won't ID in public groups let alone a photographic group. Keep taking great pictures! Cheers.

Komang Agus Tanks ,i will patrik.!

Tini Palar beautiful

Jim Dodd It looks like a colour variation of a Dendrodoris denisoni maybe https://www.facebook.com/media/set/?set=a.148925595125847.23819.141989909152749&type=3#!/photo.php?fbid=396396690378735&set=a.148925595125847.23819.141989909152749&type=3&theater

Ron Silver Now known as Dendrodoris krusensternii

Enrico Giordano MI SEMBRA DI VEDERE UN GIOIELLO IN ESPOSIZIONE.

Fairuz Zainal Aarif This is amazing..

Alex Barth Nudi / Bali 2013 - Tulamben Canon G10 1x INON D-2000 , 1x INON Z-240 Subsee +10 F4 1/160 ISO 80

Brett Thorpe Wonderful

Ron Silver Dendrodoris denisoni

Howie Grapek Again, proof that it isn't about the camera (older compact vs brand new DSLR).... outstanding photo!

Ning Chang

Gary Cobb Dendrodoris denisoni (Angas, 1864)

Chanon Ngernthongdee From Pattaya Thailand

Ron Silver Dendrodoris denisoni

Chanon Ngernthongdee Thanks Ron for identification

Albert Hartono Need help to ID this. Found in Tulamben, Bali

Dray Van Beeck Dendrodoris denisoni

Albert Hartono Thanks for the ID Dray Van Beeck

Bonar Sitohang It looks like the nudi comes from a royal family. ;)

정대위 D. denisoni synonymized Dendrodoris krusensternii (Gray, 1850). Reference from WoRMS (http://www.marinespecies.org/). I studied this species by molecular works, Austrailian species and North-eastern Aisa species have much distance with COI genes about 10%. I think it need to sperated to another species.

Albert Hartono Yess glamour nudi Bonar Sitohang :)

Albert Hartono Thanks for the ID David

Bonar Sitohang Where did you find it, Albert?! I mean the dive spot.

Kimber Stonehouse Beautiful pic! The colours & lighting are gorgeous!

David Kipling It's interesting to see how similar this species is to another unrelated one that we get in the UK, yet still has blue dots and these lumps protuberances (Aegires punctilucens - translates as "points of light"). http://www.seaslugforum.net/showall/aegipunc

Tamsyn MAnn David Kipling - I was thinking the same thing as I looked at the picture... interesting about 'points of light.' That's the thing I have learnt today :)

David Kipling The benefit of a classical edukashun Tamsyn ;)

João Pedro Silva Blue dots are also common in other unrelated animals and there are other perhaps more important parts of the anatomy which are very different (thinking about the rhinophores here). But is there a gene for the "blue dots"? And could it be found in other animals (for instance, Timon lepidus)? That would be interesting to find.

Karen Rochester This is a Dendrodoris denisoni. :-)

João Pedro Silva Karen Rochester, don't forget to read the previous comments :)

Roy Arthur David Lontoh Bonar Sitohang we found it @the drop off, Tulamben :D

Albert Hartono Om Bonar Sitohang sorry, Roy sudah bantu jawab... jujur aku agak lupa :)

Bonar Sitohang Albert Hartono...in English please. ;)

Stewart Clarke Dendrodoris denisoni Found in the east coast of the UAE at 20m 5cm in length

Patrik Good Generation X. Thought I'll share this one too. Gold Coast Seaway; 9/10/2012; 14:01 hrs; Austraeolis ornata; size 30mm; depth 2 metres; 20 degrees water temperature; 2 metres visibility; this was the first branch species for the day. Lots of Hypselodoris obscura, beautiful Dendrodoris denisoni, including a juvenile, a few Mexichromis mariei, Ceratosoma tenue, various Goniobranchus and bubble shells, Siraius nucleola, Hypselodoris jacksoni (exciting), and a tiny Goniodoridella savignyi (new record for me and possibly the dive site).

Patrik Good Thordisa sp.? Found at Gold Coast Seaway, Australia, 28/8/2012, size 23mm, depth 6 metres, water temperature about 20 degrees. This guy looks like a soft coral. It is quite dark purpleish to brown. The gills extend nicely with a white crisp. The rhinopores are white tipped too and are situated on like a podestal that is creamy white. The whole body is covered in these interesting bumps that end like corals. The underside has two layers and is brown. If anyone can help with a proper ID, that would be nice. This is most probably a new species for the Seaway. I also found Chromodoris splendida, a common species around here but never documented in the Seaway. The Seaway is a must dive for nudilovers at the moment with also lots of Goniobranchus reticulatus and Dendrodoris denisoni around.

Patrik Good Seems so easy to ID but it is not for me. Anyone an idea? Gary Cobb, is it a keeper?

Patrik Good ok, ok, guys, will collect the mitochondrial DNA. Waiting for an ID is always a sign that the nudi is either considered ugly, not interesting, not photographed well enough, too difficult to ID or a combination of those.

Gary Cobb Steady there! I have been on assignment. This critter is the same as I found and Richard ID'd it as a juvenile Atagema ornata (Ehrenberg, 1831)

Gary Cobb And for your information I think the critter is beautiful with a lovely texture!

Gary Cobb Patrik if you need a FAST ID email me!

Gary Cobb This species is very close to Atagema albata (Burn, 1962)

Patrik Good Thanks, Gary. I was considering Atagema too but couldn't find any matching pictures on the net. There is certainly no white marking on the back. This critter has been almost driving me crazy as I am trying to get a decent picture. It is not small but very difficult to get a good shot. Have a few dozen pictures now.

Bernard Picton The gills certainly have an Atagema look, but those processes are amazing! Nice find Patrik.

Gary Cobb Good luck son.

Patrik Good Thanks, Bernard. Am happy with Atagema. The gills are beautiful, remind me of a white crown and the processes look like part of a coral. Had to doublecheck if they are retractable or some other growth but they are definitely part of the body. The lower part of the rhinophores are see through by the way and the dark bits have bright dots on them too. Happy to upload more pictures if anybody fancies.

Patrik Good Oh, another interesting observation from all the time I spent with it when photographing it. The critter seems to have no sense for light. However, it is very sensitive to movement. The rhinophores retract instantly when disturbed only slightly. The critter can curl into a ball. It doesn't seem to be active in the morning.

Patrik Good It has been IDed as Thordisa sp. and according to M. Miller it will obviously be named at some stage as Terry Gosliner has got a sample in his collection already. Here is the BOW link http://slugsite.us/bow2007/nudwk599.htm

Blogie Robillo You're right, it does look like coral, like Galaxea sp.

Patrik Good Dendrodoris denisoni, Gold Coast Seaway, 28/8/2012, size about 50mm, depth 2 metres, water temperature about 20 C degrees. I found five of these, two pair mating. One was sheltered on top of an exposed rock on the calm side avoiding the strong current. The mating pair were in a crevice between overgrown rocks. They are so beautiful. The juvenile I posted last week doesn't have the white rings around the pustules (and are much smaller of course and have less of the pustules).

Blogie Robillo Spectacular!

Patrik Good Agreed, Blogie Robillo, they are spectacular.

Patrik Good Gold Coast Seaway (Australia), depth 2 metres, size 13mm, temperature about 20 Celsius. What I think is a juvenile Dendrodoris denisoni. Two more grown ups 35mm in size in the area found. Beautiful nudi hunting conditions, about 15 species found without a torch. Actually vis was too good for hunting. A few nudis were encountered midwater again, stirred up by the morning boat traffic.

Blogie Robillo This one's a beauty!

Patrik Good The grown ups that I found on this dive are even more beautiful. But a photo of a juvenile is probably more special and not seen as often.

Blogie Robillo How are the adults differet?

Patrik Good The juvenile is thin and long with only two rows of pustules. The adults have more pustules and the pustules coming out have white rims. Looking so voluptious while the colours are the same. Will upload the adult another day.

Ajiex Dharma Pretty: )

Gary Cobb I will post a 70 mm adult...

Stefan Follows Mad as a bag of nudis...!!! Nudibranch - Dendrodoris denisoni Chaloklum Bay, Koh Pha Ngan, Thailand G10-500-f8-iso80 Inon D2000 Inon UCL165

Giorgio Cavallaro (y)

María Eugenia Suárez family name?

Ron Silver Dendrodorididae

Blogie Robillo Wow! Would be nice to have a full-body shot of this. :)

Franca Wermuth-Vezzoli very nice!

Orietta Rivolta Beautiful nudi,I never seen ...good! __B-)

Gary Cobb This is Dendrodoris denisoni (Angas, 1864)

Josh Milligan

João Pedro Silva Maybe Dendrodoris denisoni. According to WoRMS, the accepted name is now Dendrodoris krusensternii.

Josh Milligan Thanks. I looked at several sites and that looks right. Thankyou.

Sven Kahlbrock Looks a bit like D. denisoni, think João is right

Jim Anderson Thanks João on the name change info.

João Pedro Silva You're welcome, Jim! Although WoRMS is not authoritative, it's contantly being updated.

Jim Anderson I don't know of another site that does a better job - do you?

João Pedro Silva For instance, it recently corrected the subspecies Felimare picta azorica which had been "upgraded" to the species rank in the latest family revision: http://www.marinespecies.org/aphia.php?p=taxdetails&id=597542

João Pedro Silva You're right!

Graham Abbott What, another name change! Why are there so many name changes I wonder? Does anyone have any idea why these animals are going through so many name changes?

João Pedro Silva The animals are not going through any change :) It's we who don't know enough about them and as knowledge increases the names have to accommodate to their real phylogeny.

Graham Abbott Aha, yes, I agree that these animals are totally at one with being nudibranchs and not caring about what others call them, it's us crazy people that feel the need to have names on things. But why should species names be changing a lot? Is it just for recognition or is there a purpose behind a name change?

João Pedro Silva It's because the names imply those phylogenetic relationships (genera work a bit like surnames). Many recent changes have been proposed because there is more molecular analysis being done for taxonomic purposes. So animals which look a bit alike and were previously considered to be "cousins" may actually be more distantly related than we imagined (and vice versa).