Amir Abramovich The red hills of Nudiland.
Red Sea.
Canon S110 AT35strobe.
1/320 f8 ISO80
Enjoy and share my UWP page:
www.facebook.com/amirunderwaterphotographypage.
Amir Abramovich The red hills of Nudiland.
Red Sea.
Canon S110 AT35strobe.
1/320 f8 ISO80
Enjoy and share my UWP page:
www.facebook.com/amirunderwaterphotographypage.
Chris Jones Hey Amir, are you using the Inon mount system on the S110 ?
Yutaka Takizawa Nice shot.....(^。^)
Ron SilverChromodoris magnifica
Amir Abramovich No chris . I use a +10 diopter with a 67 mm thread to fit the ikelit housing
Christopher Thorn Houbihou water outlet, Taiwan. 10 m. 30 mm.
C.magnifica?
Franca Wermuth-Vezzoli is it just laying eggs?
Gary Cobb I would say this is Chromodoris elisabethina
Christopher Thorn Thanks Gary. Would you say that any of these are C.magnifica? http://www.facebook.com/photo.php?fbid=10150987137526153&set=o.206426176075326&type=1&theater
Gary Cobb Yes the top two and bottom left look like Chromodoris magnifica
Blogie Robillo Gary Cobb - I thought I read somewhere that C. elisabethina didn't have a white mantle margin? But I could be mistaken...
Christopher Thorn Many thanks for your time Gary, top right from the composite and the nudi in this thread look very similar to me. Can you give any tips on distinguishing between them ?
Blogie Robillo Yes, Gary, do enlighten us! :)
Christopher Thorn please:-)
Gary Cobb Ok here goes...Chromodoris elisabethina generally has black longitudinal lines that are thinner and always on blue and are sometimes broken and are three or more. The body is usually narrow in comparison. C. magnifica has thicker black longitudinal lines that are usually unbroken and almost always number in three and usually on a white background sometimes blue. The body is more stout in the shape of the mantle. Both have white mantle margins and orange to orange-red rhinophores and gills. C. magnifica can have brown coloration in between the black lines while C. elisabethina does not. Both have a foot that matches the mantle.
Gary Cobb Generally speaking Chromodoris magnifica is a larger nudibranch than C. elisabethina
Gary Cobb And from my observation C. elisabethina has 'sharper' edged black longitudinal lines where C. magnifica has black lines that appear almost 'out of focus'.
Gary Cobb C. annae sometimes has no black lines on the always blue mantle that has small 'pits'.
Blogie Robillo Thanks Gary!
Christopher Thorn Yes, much appreciated. I still don't feel particularly confident distinguishing between the two similar looking nudis mentioned above, but you have given me lots to look out for in future! Thank you very much.
Gary Cobb It is sometimes very hard to tell the difference between the two and we can only hazard a guess! DNA an ID them more accurately. Only by observing many animals can you begin to see the difference. Glad I can help.
Amir Abramovich The red hills of Nudiland.
Red Sea.
Canon S110 AT35strobe.
1/320 f8 ISO80
Enjoy and share my UWP page:
www.facebook.com/amirunderwaterphotographypage.
Amir Abramovich The red hills of Nudiland.
Red Sea.
Canon S110 AT35strobe.
1/320 f8 ISO80
Enjoy and share my UWP page:
www.facebook.com/amirunderwaterphotographypage.
Wolfgang RotschekChromodoris magnifica?
Red Sea, depth approx 10m
Gary Cobb This is Chromodoris africana
Eliot, 1904
Wolfgang Rotschek Thanks for the correction. Found the difference now.
Sven Kahlbrock We have three pretty similar in our area, Ch. quadricolor, africana & strigata. always fun to divide.
Erwin Koehler Maybe worth to mention: Ch. quadricolor is a very common species in the Red Sea. I think many IDs of Ch. africana, are doubtful! I remember how often Bill Rudman moved some of my pictures from here to there, until they rest now in the frozen sea slug forum as
Chromodoris quadricolor. I don't remember where did I read it, but Nathalie Yonow wrote that Ch. africana has an almost black appearance in the field. Ginoo ko! (Visayan: My GOD!)
Gary Cobb Both species are found in the Red Sea. I have always separated them "visually" by the colouration in between the black stripes. White is C. africana and blue is C. quadricolor. In this case Erwin you might be right because of the wide margin. C. quadricolor generally has a wider margin. Morphologically speaking of course we are simply guessing when species are so close in appearance. We desperately need a small handheld DNA Nudibranch sampling device usable on site!!
Mohamad Izwas Can anyone help me to determine this Chromodoris? There are few similar but not really same with this one.
This photo taken using DSLR Nikon D800 with Nikkor 105mm Vr
1/200 sec; f/29; ISO 200 with 2 DS160 Ikelite Substrobe
No color adjustment, just crop little bit and write watermark only.
Blogie Robillo I think this might be Chromodoris strigata.
Blogie Robillo Btw Mohamad, in this forum, it is not necessary to include camera settings. What's more important here when asking for ID are location, depth and size of the creature. :)
Mohamad Izwas Ok, Found in Mabul Island Sabah. Size like normal adult chromodoris magnifica. I'm not sure metric measurement.
Bob Whorton It's not 'strigata' that is much more like the common chromodorids and not as chunky in the body, with a broader mantel.
Bob Whorton Now having looked at it big, it might be strigata - doh!
Franca Wermuth-Vezzoli Please help, I have named a few nudibranchs Chromodoris magnifica, but I'm not sure any more. Philippines, don't know the exact location right now.
Franca Wermuth-Vezzoli Location: Romblon, Agtongo, Philippines
Blogie Robillo Pls help ID these two dorids? For the life of me, I still find it difficult to differentiate among Chromodoris magnifica, C. annae, C. elisabethina...
Both nudis were spotted at a depth of 5m, and each measured roughly 3cm long.
Blogie Robillo No takers?
Deb Aston I would guess either Chromodoris michaeli or Chromodoris colemani
Roy Arthur David Lontoh I think the one on the left is Chromodoris mihaeli and the one on the right is Chromodoris hamiltoni?
Blogie Robillo Thanks for your input, guys, but I think C. michaeli is out of the question. Accdg to existing descriptions, C. michaeli's dorsum should have a "fine speckling of white' on a translucent bluish or brownish ground color. Neither of the two above has such.
Blogie Robillo I'm still confused what the one on the left could be, but the one on the right just might be Chromodoris hamiltoni....... Anyone?
Blogie Robillo OK, based on the message in this link, the one on the right could very well be C. hamiltoni: http://www.seaslugforum.net/message/22337
Blogie Robillo Hey Gary Cobb, any thoughts? :)
Gary Cobb Where we're these found? Chromodoris hamiltoni is a west Indo pacific species and other species may aquire pigmentation.
Blogie Robillo Gary Cobb - Both were found off the eastern coast of Samal Island, south of the Philippines.
Franca Wermuth-Vezzoli I had the same problem: http://www.seaslugforum.net/find/23081 and http://www.seaslugforum.net/find/20173. I file my nudi as a Chromodoris magnifica.
Gary Cobb Yes these Nudibranchs can be quite a problem. I would say the two photos above are Chromodoris magnifica (Quoy & Gaimard, 1832). This species can have brown smudges. C. annae has "pits" in the blue region of the mantle. C. hamiltoni is from the Western Indian Ocean i.e.. Africa.
Roxanne Fea I find identifying these types of nudibranches can be maddening...
Blogie Robillo yeah maddening, but like a drug :D
Gary Cobb Fairly simple if you know what morphology separates the species. Also don't forget that DNA will give a positive result, we can only hazard a guess based on "time in the saddle"!
Blogie Robillo I'll settle for "time in the saddle" ;)
Blogie Robillo Is this Chromodoris magnifica or C. colemani?
Depth 6m; length abt 3cm; 13 May 2012.
Gary Cobb The only difference between this photo and Chromodoris magnifica is the small amount of brown colouration between the black streaks. See this thread from the Forum http://www.seaslugforum.net/find/21279 this is a colour form of C. magnifica
Gary Cobb This species does occasionally have a little orange-brown mottling between the black streaks.
Blogie Robillo Pls help ID these two dorids? For the life of me, I still find it difficult to differentiate among Chromodoris magnifica, C. annae, C. elisabethina...
Both nudis were spotted at a depth of 5m, and each measured roughly 3cm long.
Blogie Robillo No takers?
Deb Aston I would guess either Chromodoris michaeli or Chromodoris colemani
Roy Arthur David Lontoh I think the one on the left is Chromodoris mihaeli and the one on the right is Chromodoris hamiltoni?
Blogie Robillo Thanks for your input, guys, but I think C. michaeli is out of the question. Accdg to existing descriptions, C. michaeli's dorsum should have a "fine speckling of white' on a translucent bluish or brownish ground color. Neither of the two above has such.
Blogie Robillo I'm still confused what the one on the left could be, but the one on the right just might be Chromodoris hamiltoni....... Anyone?
Blogie Robillo OK, based on the message in this link, the one on the right could very well be C. hamiltoni: http://www.seaslugforum.net/message/22337
Blogie Robillo Hey Gary Cobb, any thoughts? :)
Gary Cobb Where we're these found? Chromodoris hamiltoni is a west Indo pacific species and other species may aquire pigmentation.
Blogie Robillo Gary Cobb - Both were found off the eastern coast of Samal Island, south of the Philippines.
Franca Wermuth-Vezzoli I had the same problem: http://www.seaslugforum.net/find/23081 and http://www.seaslugforum.net/find/20173. I file my nudi as a Chromodoris magnifica.
Gary Cobb Yes these Nudibranchs can be quite a problem. I would say the two photos above are Chromodoris magnifica (Quoy & Gaimard, 1832). This species can have brown smudges. C. annae has "pits" in the blue region of the mantle. C. hamiltoni is from the Western Indian Ocean i.e.. Africa.
Roxanne Fea I find identifying these types of nudibranches can be maddening...
Blogie Robillo yeah maddening, but like a drug :D
Gary Cobb Fairly simple if you know what morphology separates the species. Also don't forget that DNA will give a positive result, we can only hazard a guess based on "time in the saddle"!
Blogie Robillo I'll settle for "time in the saddle" ;)
Blogie Robillo Is this Chromodoris magnifica or C. colemani?
Depth 6m; length abt 3cm; 13 May 2012.
Gary Cobb The only difference between this photo and Chromodoris magnifica is the small amount of brown colouration between the black streaks. See this thread from the Forum http://www.seaslugforum.net/find/21279 this is a colour form of C. magnifica
Gary Cobb This species does occasionally have a little orange-brown mottling between the black streaks.
Gary Cobb Translation: Nudibranchs and tiny animals that populate the ocean depths. They are my passion, have a spectacular color and detail. I call it pokemons are as varied as those children's drawings.
Gary Cobb Where was this animal found? It could be Chromodoris magnifica or Chromodoris quadricolor.
Evie Go Gary Cobb, pls look at d whole album..They're all amazing nudi pics!!
Bob Whorton Can anyone ID the little guy in this old shot from Wori Bay N. Sulawesi please?
Mike Bartick with the plume in its a tough call,,,Chromodoris magnifica
Deb AstonHypselodoris apolegma
Deb Aston Sorry H apolegma is the big one.
Deb AstonChromodoris strigata for the little one.
Gary Cobb Nice photo!
Gary Cobb The large one is Risbecia apolegma Yanow, 2001 and Chromodoris strigata Rudman, 1982
Jim Anderson It's now Hypselodoris apolegma (Yonow, 2001)
Gary Cobb Jim where did you get that information?
Gary Cobb This was never proven in a scientific paper and Yanow still thinks it is Resbecia. The Sea Slug Forum was only speculating and a paper has never been written that officially changes the Genus.
Gary Cobb Bill Rudman:
"This 'species' has recently been described as Risbecia apolegma. On the Forum it has been considered closely related to Hypselodoris bullocki. Whether it is a colour form of that species or a distinct species is not clear to me. Have a look at the messages on the H. bullocki and H. apolegma pages to see some of the colour variation and discussion. Also look at Phil Slosberg's photo showing typical H. bullocki and H. apolegma mating."
"Hypselodoris apolegma differs from H. bullocki mainly in colour. The background colour is a rich pinkish purple with a white border to the mantle. At the edge of the mantle the border is solid white but inside this is a region of varying width in which the white forms a reticulate pattern gradually merging in to the pinkish purple. The rhinophore stalks and the base of the gills is an intense purple, the rhinophore clubs and the gills are orange yellow. I can find no anatomical grounds to place this 'species' in the genus Risbecia."
Ed. This is Bills thoughts on the species, so you see there was never a paper written proving that the genus is Hypselodoris BUT there a paper by Yanow proving that it is Resbecia. Unlees you know of one we stick with the latest papers finding.
Bob Whorton It's nothing like a Risbecia in reality, and everything about it screams Hypselodoris, Was Yanow sober? H. bullocki is distinctly different from apolegma, and how it was ever associated beats me. Bullocki has a distinctive semi translucent skin over a layer of colouration giving it an opaue effect, with a thin white border around a sharper mantle edge. The behaviour of the two is quite different too.
Jim Anderson I got this from Dave Behrens - seeGosliner, Behrens, and Valdes, Indo-Pacific Nudibranchs and Sea Slugs for reference.