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Nanochromis nudiceps and parilus

Contents:

  1. N.nudiceps
    by Steven White <sawhite/bicnet.net> (Sat, 28 Mar 1998)
  2. N.pnudiceps was Re: Sexing A. Nijsseni
    by "Darren J. Hanson" <djhanson/calweb.com> (Fri, 27 Mar 1998)
  3. Nanochromis
    by Mike & Diane Wise <apistowise/bewellnet.com> (Sat, 13 Jun 1998)
  4. Nanochromis Dimidiatus pairs wanted
    by Mike & Diane Wise <apistowise/bewellnet.com> (Mon, 19 Oct 1998)
  5. Nanochromis Dimidiatus pairs wanted
    by Mike Downey <windwalker/uky.campuscw.net> (Mon, 19 Oct 1998)
  6. Spawning N. Parilus
    by Frauley/Elson <fraulels/minet.ca> (Wed, 30 Dec 1998)


N. parilus spawning pair

Photos by Helen Burns

N.nudiceps

by Steven White <sawhite/bicnet.net>
Date: Sat, 28 Mar 1998
To: apisto/majordomo.pobox.com

Steven J. Waldron wrote:
> 
> For what it's worth, I've seen both forms come in together in wild
> shipments. Of course this doesn't exclude the possibility that collectors
> may be consolidating populations for export. Most often though, the many
> shipments I've seen have been uniformly "parilus". Just another speculative
> dos pesos
> - Steve
> 

Nanochromis nudiceps and parilus are two different fish but I don't
think that nudiceps is, now, ever exported commercially (at least, not
for years nor ever in any quantity), but I can really understand why
identification of these fish is difficult. Years ago I had the pleasure
of keeping and spawning what is apparently the true nudiceps that were
acquired from Aquarium Mimbon in Germany through Waterlife Imports. The
males have a more uniformly marked caudal with the red and white, while
the female lacks the bars on the caudal that is so distinctive of
parilus females and males of parilus, even those males of the color
morph that have the red and white striping!


Parilus males occur in two color morphs, even in the same locale. The
type with the more ornate finnage is found less often and is the fish
that people have called splendens (real wishful thinking) in the past.
After Roberts and Stewarts paper in 1976 describing parilus (as well as
splendens and consortus) it was realized that what we hobbyists had been
calling nudiceps for decades was a separate fish and nudiceps was not in
the hobby (maybe only very, very rarely). Also, Roberts and Stewart were
able to shed light on the fact that what had been observed for years
(two color forms of parilus males showing up in shipments) was, most
likely, true  In the current Cichlids of West Africa, by Linke and
Staeck, a male of nudiceps is pictured on page 88, while photos of both
forms of male parilus are found on pg. 90 and pg. 92.
												Steve White
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N.pnudiceps was Re: Sexing A. Nijsseni

by "Darren J. Hanson" <djhanson/calweb.com>
Date: Fri, 27 Mar 1998
To: apisto/majordomo.pobox.com

At 08:29 AM 3/26/98 +0000, Ken Laidlaw wrote:
>>From articles published in the UK the distinction between 
>the two named species is that parilus has a metallic like 
>marking along the dorsal fin and nudiceps does not.  They 
>could still be colour varieties of the same fish though.
>
>Ken.
Ken

I was able to get more info on the two fish from our Editor yesterday
evening. He faxed me a couple pages from a book (he didn't mention the book)
but, said that the two are two different species. If I can read the fax here
is part of what it says:

On Nanochromis parilus -
"Only a few features distinguish the species.  N. parilus has a more
contrasting pattern and a more conspicuous colouration in the upper
bordering of the dorsal fin. An important point of distinction is the lower
half of the caudal fin which usually lacks a pattern and is violet in colour."

On Nanochromis nudiceps -
"The fish illustrated as N. nudiceps in magazines and books during the past
30 years or so belongs, in the majority of cases, to a species described as
N. parilus only in 1976.  .......The answer was quite simple since both
species have almost the same appearance.  Only very minor points of
distinction exist.  A slight difference is found in the colouration of the
dorsal fin, but a major feature is the additional pattern in the caudal
fin."  "brown on the nape and on the posterior part of the body.  The cheeks
are blue, the gill folds reddish, ?-brown spot lies above the upper edge of
the eye and the iris is dark. The dorsal fin and the upper part of the
caudal fin are bordered dark. The caudal as well as the anal fin are
distinctly spotted. The ventral fins are whitish with the first spines being
grey......Besides the morphological traits, N. nudiceps and N. parilus
differ by the small spots which are arranged in vertical lines on the caudal
fin and which are present in this form also in the species N. splendens."

Now, in one of my books "Complete book of Dwarf Cichlids" by Hans-Joachim
Richter - "Roberts and Stewart (1976) descibed the new species Nanochromis
parilus on the basis of the different coloration of the fins.  With many
aquarists and in my own spawnings it became apparent that both color forms
can appear in the offspring.  Since this occurs over several generations, it
is questionable whether Nanochromis parilus is truly an independent species."

Now, I am really confused. In the fax, their are different species. In the
book I have, they are the same.

So, I still don't know whether they are actually the same (color morphs) or
definitely two distinct species.

Anything you can add to make it easier to tell?

Ok. After rereading the above statements N. parilus lacks a patter and is
violet in colour in the tail. The N. nudiceps spotted.

Do I have it now? I hope so.

Thanks

Kaycy


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Nanochromis

by Mike & Diane Wise <apistowise/bewellnet.com>
Date: Sat, 13 Jun 1998
To: apisto/majordomo.pobox.com

Nanochromis nudiceps and Nanochromis parilus are two different, but closely
related species from the lower Congo River.  These species have been confused for
years.  In the 60s N. parilus was introduced to the hobby under the name N.
nudiceps.  At the time N. nudiceps was the only known goby-like species of
Nanochromis known.  In 1976 Roberts & Stewart described N. parilus as a new
species.  The hobby trade didn't catch on to the differences, so N. parilus is
still called N. nudiceps in the trade.  They can easily be differentiated by the
caudal fin pattern.  Nanochromis nudiceps has rows of spots covering the entire
caudal fin.  The type form of N. parilus has horizontal stripes in the upper lobe
of the caudal fin, while the lower lobe is translucent.  There is, however,
another form of N. parilus, sometimes called "super parilus".  This fish has
horizontal bands in the upper lobe of the tail, while the lower lobe has vertical
spot rows.  The differences can be easily seen in photos of the fish in Linke &
Staeck's book African Cichlids I - Cichlids from West Africa.  Anyone interested
in West Africans really should buy this book.

Mike Wise

> Hi all
>
> Just a little off topic, but I'm hoping you can help me.  I recently
> purchased a trio of Nanochromis parilus.  I've read conflicting info
> on the proper name for this fish.  One book states that book parilus
> and nudiceps are the same fish.  Another states that nudiceps is the
> proper name and yet another states that they are indeed separate.
> Help!
>
> I need to know which is the truth.  And if they are 2 separate fish,
> how do I tell them apart?  Also any and all info about them is
> appreciated.  I really get into knowing alot about the fish I keep.
> Personal experiences welcome.  :)
>
> TIA
>
> Lisa Brinkman
>
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Nanochromis Dimidiatus pairs wanted

by Mike & Diane Wise <apistowise/bewellnet.com>
Date: Mon, 19 Oct 1998
To: apisto/majordomo.pobox.com

Sean,

The fish called N. dimidiatus back in the 60s & 70s is no longer in the hobby. No
one seems to know where Pierre Brichard collected his. Once he left the Congo,
shipments of the beautiful fish (and many others) simply dried up. Since then
many have tried to rediscover it but none have succeeded. The closest thing
presently available is N. sp. Kisangani (=Silberbauch/Silver-belly). There's a
good chance that this fish is just a geographic color variant of the really red
N. dimidiatus of the past.

Mike Wise

Sean Sheldon wrote:

> Does any know as to where I can buy mail order Nanochromis Dimidiatus from ?
>
> HotBot - Search smarter.
> http://www.hotbot.com
>
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Nanochromis Dimidiatus pairs wanted

by Mike Downey <windwalker/uky.campuscw.net>
Date: Mon, 19 Oct 1998
To: apisto/majordomo.pobox.com

>Sean,
>
>The fish called N. dimidiatus back in the 60s & 70s is no longer in the
>hobby. No
>one seems to know where Pierre Brichard collected his. Once he left the Congo,
>shipments of the beautiful fish (and many others) simply dried up. Since then
>many have tried to rediscover it but none have succeeded. The closest thing
>presently available is N. sp. Kisangani (=Silberbauch/Silver-belly). There's a
>good chance that this fish is just a geographic color variant of the
>really red
>N. dimidiatus of the past.
>
>Mike Wise

The N sp."Kisangani" I have are much more red-orange than the dimidiatus in
the pics. They are good parents and are not much problem in a community
tank with tetras and even some corys (West African corys of course VBG;-)
The fry are only about 3/8" and are all over an even color of light brown
or tan.
Mike



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Spawning N. Parilus

by Frauley/Elson <fraulels/minet.ca>
Date: Wed, 30 Dec 1998
To: apisto/majordomo.pobox.com

AEIGPHD@aol.com wrote:
> 
> Hi Folks,
> 
> I have a pair of N. Parilus that I picked up yesterday at the LFS. They are in
> a 10 gallon quarantine tank with a couple of small tetras.  I am going to set
> them up in a 30 gallon tank which has just finished cycling.  My plan is to
> have plenty of round rocks and hiding places along with a few spawning caves.
> Filtration will be a sponge filter with powerhead for some current.  My
> questionis what should the hardness and ph be?  Linke and Staeck are not
> definite. They say soft water and alkaline ph (7.5?).  How would you go about
> setting up a breeding tank for N. Parilus?
> 
> Thanks
> Andy
Hi Andy,
I used to have a lot of luck with parilus using soft acid water. The
eggs didn't develop in harder, pH 7.4 water. They'd spawn every 2 weeks,
but nothing would come of it. My theory is they are caught at low water,
when things are harder and more alkaline, but spawn when the rains come.
They love to dig, which makes round rocks a problem, as they'll go under
them to make caves. I used to bury rocks under sand, with flat rocks
lying above them. The parilus would dig under the flat rock, which would
settle onto the buried rocks making a nice neat cave. Making their own
home seemed to stimulate spawning.
The same trick worked with transvestitus. I'm looking forward to trying
it with other nanochromis, if I ever get hold of them :-).
-Gary


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