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Eubranchus mandapamensis

(Rao, 1968)

Ilan Lubitz Sea Slug Eubranchus mandapamensis Nikon D3X 60mm 2XSB105 1/250 F18 iso 200

Ella B. Lubitz You never Stop looking for a good Spot... Beautiful Shot.

Message posted on UWphotographers on 23 Nov 2012
Mario Smid Bali, 6m, 3-5 mm

Arne Kuilman Cool closeup!

Mario Smid Thx ;)

Marli Wakeling Appears to be Eubranchus mandapamensis.

Mario Smid Thank you!

Mario Smid Also Bali, around 6 m depth, very tiny ;) Thank u!

Blogie Robillo I guess it's a nudibranch. Do you have a closer shot?

Mario Smid Yes, its a nudie, but i cannot find it in my books. I'll post a 100% crop. Thx

Ruby Ann Balio Looks like a one of the Eubranchus sp.

Mario Smid Thx a lot Ruby!

João Pedro Silva Never tried to bribe my models but will do this week.

João Pedro Silva Just checked the exchange rate and found our nudibranchs may be a lot more expensive to bribe. No wonder we only find ~120 species here.

Mario Smid ;)

João Pedro Silva The close up shows ringed rhinophores so it's not Eubranchus (in spite of the swollen cerata) nor Trinchesia.

Marli Wakeling Eubranchus mandapamensis; it has projections on the rhinophores.

João Pedro Silva These don't seem the somewhat irregular projections on the rhinophores typical of E. mandapamensis, Marli Wakeling. In the closeup they look a lot more like rings/lamellae.

Arne Kuilman Why not a very tiny / young Flabellina bilas? Colors match perfectly, but it's hard to tall when they're so small.

Marli Wakeling João Pedro Silva, I see what you mean. Interesting.

Chandy de Wit Any idea what this little tiny one (5mm) is? Found @ 18m in Melasti Bali?

Mario Smid Eubranchus virginalis? Maybe?

Chris Cunnold Eubranchus mandapamensis

Lindz Warren More like Dunga ocellata (Alder & Hancock, 1864). E. mandapamensis has yellow and blue tips to the cerrata. This specimens appears not to.

Chris Cunnold I'm on a phone so can't see the cerata tips, I can't see the circular cerata patterns of D. ocellata either. D. ocellata is a rare find at Melasti - well done.

Janet OBrien Chandy do you think this is the same guy? Taken at Melasti in September - I couldn't work out what he was!

Chris Cunnold I still reckon they are both E. mandapamensis.

Chandy de Wit It's funny Janet OBrien, I thought about your photo when I saw this one, yes, you can just see the rhinophores on the left side...

Chandy de Wit Thanks everyone, definitely not Dunga ocellata... I'm thinking you are right Chris Cunnold

Sven Kahlbrock What the hell is that one?? St Johns Caves on Hydroid, approx. 6 mm

Linda Goldrich Hi, I'm currently out of the country leading a group dive trip. I will respond to all emails when I return the end of June. Linda Goldrich facebook.com/linda.divewithus 623-252-9710 602-295-2616 Cell http://www.diveassure.com/new/usa/form_member.asp?referrer=globe85 http://www.divewithus.globaltravel.com

Barbara Camassa FANTASTICOO!!!

David Kipling Very wild! Interesting that just a few of the cerata are swollen like that. I don't want to guess what it is ...

O Gajo Dos Olivais Could it be Eubranchus palidus? I think I see pigment spots on the cerata and on the rinophores there is this brown ... thing... that E pallidus has.

Rie Nakano Eubranchus leopoldoi Caballer, Ortea & Espinosa, 2001

O Gajo Dos Olivais Are you sure? Distribution for E leopoldoi doesn't include Red Sea: http://www.malacolog.org/search.php?nameid=11005 I think St Johns caves are in Red sea... am I correct?

O Gajo Dos Olivais Actually, neither E pallidus.. it's considered only in European waters... :(

Rie Nakano Eubranchus leopoldoi is able to see in Japan. I think this species is cosmopolitan. Please see this url http://www.geocities.jp/janolus2003/054308.htm

O Gajo Dos Olivais I see it. But it's quite different. The mantle is long and thin and rinophores look opaque. The body color also looks different... For what I saw on other websites and judging only for the pics, I'd stay with E. palidus or some variation of it... but I'm no expert ...

Sarah Bowen Looks like a very odd hybrid between a Janolus and a Eubranchus! Fascinating - does Natalie's book have anything resembling this in it? David Kipling, can you check please, as the copy we took delivery of recently has mysteriously gone missing at around the time you took off on a business trip...

Sarah Bowen Have found the missing book, and there's something called Facelina rhodopos (Yonow 2000) which could be this. Described as with swollen cerata having a "characteristic terminal nipple", transparent with an opaque pink band and the digestive gland visible within. Size apparently 25 mm so could this possibly be a juvenile so the cerata haven't yet fully developed?

O Gajo Dos Olivais Sarah, it looks like it's not that. Facelina rhodopus seems to have a first cerata cluster folliwed by 7 or 8 clusters... And they aren't very similar to these.... :( http://www.seaslugforum.net/find/8608

Sven Kahlbrock mhh, i know F. rhodopos from the red sea, but for me it doesn´t look like this

Gary Cobb Where was this animal found? More info please.

O Gajo Dos Olivais Gary Cobb, at St John's cave which I believe to be in the Red Sea, at about 6 meters deep according to the photographer. ;)

Gary Cobb I think this is Eubranchus mandapamensis (Rao, 1968) but since we are not sure I think we should call it Eubranchus cf. mandapamensis Described from one 4mm long animal from Tanzania. Synonyms : Eubranchus rubropunctatus , Eubranchus madapanamensis

O Gajo Dos Olivais I searched for that species just now and I also believe it could be E. cf mandapamensis as I think I can see evenly spaced annulations on the rhinophores. But maybe Sven can tell us more by looking at the RAW image. The thing is I haven't found references to that species out of India and maybe West Indic - Pacific (Japan) . I would love to see other pictures of this specimen... And species :) @João Pedro Silva do you know this one? Also it looks so much more translucid...

João Pedro Silva Fernando, if I knew I'd have said something by now. Swollen cerata and smooth rhinophores are consistent with Eubranchus. Some cerata may have been lost (autotomy) as we see so few.

O Gajo Dos Olivais What I find great is that these pictures are much clearer and sharper and cleaner than the ones I've been able to find AND are from a different angle than the ones I saw. When I first look I missed some cerata... Looked like only 4... but then I saw the others :) So maybe this photography can help to identify better the species.... Sven, try to send it to nudipixel and seaslug. :)

O Gajo Dos Olivais What about this? http://www.seaslugforum.net/message/19099

Sven Kahlbrock Hi Fernando, just checked the Dunga occellata from Sulawesi, the lenght reported there was 1,5 cm, so this one could be a juvenile; would explain, why not all cerata are fully grown?!

João Pedro Silva Could be regenerating after some "accident". Here's an example of another aeolid turned almost unrecognizable due to lots cerata (all except 3 or 4). Regarding the identity of the Eubranchidae, sometimes it's complicated enough with the species in the NE Atlantic so all I could do is speculate with this one.

João Pedro Silva (forgot the "example" I talked about above) http://www.flickr.com/photos/jpsilva1971/6032978512/

O Gajo Dos Olivais Do you have a photo from top? Maybe it is not important but I would like to see that bluish thing on the top of the mantle. And it would give an aerial view of the other cerara. I have to say that I'm pretty unexperient at this and never even have been diving for Nudis out of Portugal. I'm just trying to collect knowledge and these cases are excellent to fine tune the ways of study. Hope I would not led any one in the wrong direction. ;)

Linda Goldrich Hi, I'm currently out of the country leading a group dive trip. I will respond to all emails when I return the end of June. Linda Goldrich facebook.com/linda.divewithus 623-252-9710 602-295-2616 Cell http://www.diveassure.com/new/usa/form_member.asp?referrer=globe85 http://www.divewithus.globaltravel.com

Message posted on NUDIBRANCH LOVERS on 29 Jun 2012
Albert Kang Would appreciates help on ID of this tiny Nudibranch. Size of less than 0.5cm. Found at 3 metres depth, Anilao, Batanagas.

Blogie Robillo Hi Albert. Do you have any other angle of this nudi?

Mike Bartick looks like Eubranchis sp.

Albert Kang Thanks, Mike Bartick

Ajiex Dharma Look like Eubranchus mandapamensis

Animalia (Kingdom)
  Mollusca (Phylum)
    Gastropoda (Class)
      Heterobranchia (Subclass)
        Opisthobranchia (Infraclass)
          Nudibranchia (Order)
            Dexiarchia (Suborder)
              Aeolidida (Infraorder)
                Fionoidea (Superfamily)
                  Eubranchidae (Family)
                    Eubranchus (Genus)
                      Eubranchus mandapamensis (Species)
Associated Species