Page 1 of 1

Imparfinis?

Posted: 28 Apr 2011, 22:05
by Yann
Hi!!

I obtain a group a 6 fish labelled as Imparfinis sp "Paraguay", so assuming they are coming from the Rio Paraguay drainage.

Any one has an idea if the species is described...I am quite confident regarding the genus ID

Here are some pictures!!
Image
Image
Image

Cheers

Yann

Re: Imparfinis?

Posted: 29 Apr 2011, 11:27
by The.Dark.One
Have they all got short barbels? Could they be Phenacorhamdia? There is a sp from the Rio Paraguay, P. hoehnei.

Re: Imparfinis?

Posted: 29 Apr 2011, 13:28
by Silurus
The head shape is wrong for Phenacorhamdia, I think. It's more likely correctly identified to genus (or maybe a Cetopsorhamdia).

Re: Imparfinis?

Posted: 02 May 2011, 18:47
by Yann
Hi Guys!!

Many thanks for your answers!!
I browse throught the cat elog Heptapteridae...
I found that Nemuroglanis looks also pretty similar:

Also among Imparfinis I found that is very similar to my fish (at arrival), also mine lacked the black lateral line
They have since quite change and are more overall grey now..you can't really see differences of colouration

I have also witness an interesting behaviour while doing my weekly water change...
I saw 2 of the biggest specimens, swim side by side rolling up and down while swiming just like would do snake in the mating process...once they would stay side by side they would try to hit each other on the side...wondering if it is actually courtship or a normal territorial behaviour!!

Cheers
Yann

Re: Imparfinis?

Posted: 02 May 2011, 22:49
by Silurus
I saw 2 of the biggest specimens, swim side by side rolling up and down while swiming just like would do snake in the mating process...once they would stay side by side they would try to hit each other on the side...wondering if it is actually courtship or a normal territorial behaviour!!
See http://www.planetcatfish.com/forum/view ... hp?t=32841

Re: Imparfinis?

Posted: 03 May 2011, 08:42
by The.Dark.One
They are also similar to the fish in F F of Mata Atlantica captioned as I. minutus, albeit with less chromatophores on the flanks.

I. mirini is also in another book and it too shows the line on the body as the one in the clog. It also seems a chunkier bodied fish.

Re: Imparfinis?

Posted: 11 May 2011, 18:46
by The.Dark.One
Some of these will be for sale at our Catfish and Loach Show and auction:
http://www.planetcatfish.com/forum/view ... 72#p220701

Re: Imparfinis?

Posted: 12 May 2011, 13:03
by Yann
Hi HH!!!

Yes it is somthing a bit like that...the side by side "kicks" were not too often

@Steven: thanks for the input...really makes me wonder what species it could be if indeed it is described!!
Cheers
Yann

Re: Imparfinis?

Posted: 13 May 2011, 19:31
by Yann
Hi!!

some more pictures (sorry for the quality) they are not very collaborant
still the overal shape is there but it does show their actual pattern quit well

Image
Image

Not so sure they are Imparfinis now!!
Cheers
Yann

Re: Imparfinis?

Posted: 13 May 2011, 20:50
by kruseman
Very nice fish, Yann.
May I ak where you obtained them?

Re: Imparfinis?

Posted: 13 May 2011, 20:58
by Yann
Hi!!

From a shop in Yverdon-les-bains (Aquari home) which regulary order from Glaser!!!

Cheers
Yann