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Sewellia marmorata
April 25, 2015
1:04 pm
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torso
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HI all

Some first pics of the arrival yesterday. 10 specimen, 5-6 cm TL, easy to sex at this age.

 CSC_6913.JPGImage Enlarger

 DSC_6882.JPGImage Enlarger

female

 CSC_6955.JPGImage Enlarger

a male

 CSC_6927.JPGImage Enlarger

a female

 CSC_6921.JPGImage Enlarger

males

 CSC_6941.JPGImage Enlarger

 CSC_6949.JPGImage Enlarger

 DSC_6857.JPGImage Enlarger

 CSC_6924.JPGImage Enlarger

 golden markings form an interesting pattern, communication in the dark?

CSC_6950.JPGImage Enlarger

 CSC_6922.JPGImage Enlarger

 CSC_6920.JPGImage Enlarger

 males

DSC_6866.JPGImage Enlarger

 CSC_6932.JPGImage Enlarger

 CSC_6933.JPGImage Enlarger

 CSC_6936.JPGImage Enlarger

 another male

DSC_6867.JPGImage Enlarger

 females

CSC_6954.JPGImage Enlarger

 DSC_6872.JPGImage Enlarger

 CSC_6947-1.JPGImage Enlarger

 DSC_6874.JPGImage Enlarger

 Cheers Charles

April 25, 2015
2:27 pm
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mikev
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Lucky you.-- I got babies, under 2.5cm. Sexing is impossible, but the fish pattern seems to be the same as yours.

April 25, 2015
2:39 pm
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olly
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Charles

Mike

Congratulations with new interesting sewellia species. Hope you will breed them.

Thanks for sharing.

April 25, 2015
3:08 pm
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mikev
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Thanks, Olly,

Obviously I'm not going to see any breeding for a long time..... :(

Is this the fish that you mentioned before?

April 25, 2015
4:53 pm
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Plaamoo
Bellingham, Washington U.S.A.
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Beauties Charles. Wish I had some room for them. They're selling them here as "fireworks" sewellia. :)

April 25, 2015
9:37 pm
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torso
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I've seen that, Jim. They look really nice. No disappointment as with S. diardi this time.

Wet spot labeled it as Sewellia cf. marmorata. May be due to the small size or the different pattern. The only existing pic of a living specimen so far, a male of "about" 60 mm SL - first time published by Freyhof in DATZ 2000/5 - shows a more broken up-blotched specimen. This specimen must be from the 1999 campaign, not preserved. The preserved male shown in the description - 58.7 mm SL - shows a regular marbled pattern as mine do. The description based 1996 on small specimen found 1991, the mentioned one is from 1999. The description fits and I'm pretty shure that we have Sewellia marmorata  in the hobby.

Cheers Charles

April 26, 2015
12:33 am
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mikev
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Wet spot labeled it as Sewellia cf. marmorata.

two reasons: firstly I suggested this (I told them about the id that came from you, initially they had simply "Sewellia sp."). secondly they claim that they were told the fish came from Laos.... it probably did not and my paranoia keeps telling me that perhaps the country is deliberately misidentified, perhaps because of the little red book?

April 26, 2015
3:22 am
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olly
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torso said
  golden markings form an interesting pattern, communication in the dark?

Golden markings intrigued. Surprisingly, why do sewellias communicate in the dark (at night?)? What do you think? Do they mark the territory? Are markings needed for night spawning? Probably, caviar, leaved in the dark, is better preserved from eating by other fishes?

April 26, 2015
8:41 am
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torso
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hi Olly

Dancing in the moonlight? They like to frolic all day anyway.

I'm thinking of the special conditions during spawning season: turbid water, a lot of sediments, muddy water, spawning in the calmer pools/spots of the river.

S. lineolata

Sewellia-lineolata-DSC_6464-konv..jpgImage Enlarger

 S. marmorata shows a "richer" structure

Sewellia-marmorata-CSC_6941-konv..JPGImage Enlarger

All specimen show the same type of structure. But not perfectly identic.

Just coincidence? Do they see the markings at all? Is it just for our fun?

Pics converted to "mooonlight", then darkened.

Conclusions?

Cheers Charles

April 26, 2015
10:03 am
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torso
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mikev said

Wet spot labeled it as Sewellia cf. marmorata.

two reasons: firstly I suggested this (I told them about the id that came from you, initially they had simply "Sewellia sp."). secondly they claim that they were told the fish came from Laos.... it probably did not and my paranoia keeps telling me that perhaps the country is deliberately misidentified, perhaps because of the little red book?

Ok. Nice they do changes. They came in from Vietnam. Why a part of the stock should have gone another way, I ignore. But it's possible, given, that sizes are different. And labelling is another story. First, you must identify the species, then you should know the red list and at last you write deliberately a sp. on the list. I doubt, they even heard about S. marmorata.

Cheers Charles

April 26, 2015
3:10 pm
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mikev
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Size may be simply that they divided their loot in bags by different size for ease of shipment. No conspiracy here. Only some unhappiness; the fish was listed as 1.5" (4cm) and they shipped me 2-2.5cm... and now there is no chance of a fair competition with Charles Koenig :P

Laos: alternatively they may be protecting their catch location. But they might have known the species... there are some ichthyologists in Vietnam they could have asked (for example, those who took part in the original Serov's expedition.).... and did the fish came direct from Vietnam or via Singapore (where there are people who can check). Donno really....it is just that I'm paranoid.

As for the gold spots... interesting. Remember that such appear in Sew01 and Sew04 in some cases too.

April 27, 2015
12:00 am
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olly
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torso said
I'm thinking of the special conditions during spawning season: turbid water, a lot of sediments, muddy water, spawning in the calmer pools/spots of the river.

Interestingly. As a fog light.

Are these golden markings present in both sexes? In equal extent?

mikev said
As for the gold spots... interesting. Remember that such appear in Sew01 and Sew04 in some cases too.

I see gold spots and lines in Sew04. However, in some fishes. Initially believed that females are without such spots. I may be mistaken. My group is small and it is difficult to imagine how in others.  It turns out, that these spots may be also for their communication.

April 27, 2015
1:42 am
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mikev
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With Sew04 it is the particular spot at the root of the side fin that seems to indicate males. sew-unk-m.jpgImage Enlarger

April 27, 2015
3:07 pm
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torso
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I don't think, that it's only restrected to males, Mike. I will have a look at my pics later.

Here some recent of S. marmorata. I noticed, that the glass quality is lousy. Couldn't get a sharp close up.DSC_6963.JPGImage Enlarger

 DSC_6965.JPGImage Enlarger

 DSC_6974.JPGImage Enlarger

 DSC_6979.JPGImage Enlarger

 Cheers Charles

April 27, 2015
3:13 pm
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mikev
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I don't think, that it's only restrected to males, Mike. I will have a look at my pics later.

It was pretty definite in the first group I had... and not in the current group. Actually the fish is a bit different so I suspect there is Sew04a and Sew04b.

Off topic, but we need to talk about Sew02/03 again soon. I now concur that there are two types for sure, but it is not quite your 02/03 division, ... perhaps there are three types.

PS. Great photos, thanks. Very envious.

April 28, 2015
12:41 pm
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Matt
Málaga, Spain
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Superb pics Charles and very, very nice fish! I will try to revise Sewellia profiles soon.

Have wondered about the purpose of those metallic spots in Sewellia before. Do the fish intensify in colour when breeding? Do they tend to spawn at a particular time of day?

Cake or death?
April 28, 2015
5:53 pm
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torso
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Give me more time. Matt. they just arrived Laugh

It seems, they don't change when spawning

http://www.seriouslyfish.com/f.....lineolata/

My pics of S. speciosa spawning show the pair from the ventral side.

One at the beginning of the act

CSC_7730.jpgImage Enlarger

 Cheers Charles

April 28, 2015
7:02 pm
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mikev
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Some pics of my small ones, of course no comparison with Charles, but the markings are very similar to adult already.1.jpgImage Enlarger

2.jpgImage Enlarger

3.jpgImage Enlarger

group.jpgImage Enlarger

April 30, 2015
9:03 pm
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torso
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just found this link

http://www.ulmer.de/Schmetterl.....MyMTA.html

with the pic mentioned above

Cheers Charles

February 9, 2016
2:30 pm
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olly
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Sewellia marmorata reminds me Beaufortia sp. in a body shape (especially their head). If I'm not mistaken, and they are really close evolutionarily with beaufortias, it is likely to be expected difficulties in breeding of. S.marmorata in the tank like in the case with beaufortias.

Has someone already got S.marmorata fry in the tank?

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