[Cyprinodontiformes] Aquarium Glaser Newsletter May 21st, 2010

[www.viviparos.com]

Caros colegas,

 

Aqui vão algumas novidades da Glaser.

Para quem gosta de limpa-fundos, há aqui sem dúvida curiosas novidades.

Enfim, não podiam ser sempre vivíparos, pois não ?

Um abraço

Miguel Andrade 

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De: Aquarium Glaser GmbH [mailto:info  aquariumglaser.de] 
Enviada: Nenhum
Para: Miguel Andrade
Assunto: Aquarium Glaser Newsletter May 21st, 2010

 


 
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Corydoras orcesi

 
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This beautifully marked species appeared only very occasionally in the aquarium
hobby. The fish has been described from the Rio Tigre system in Ecuador. Initially it
was described as a subspecies of the similar Corydoras pastazensis. However, so far
no intergrades have been found and this makes it very likely that both are seperate
species.

We were able to import both species from Peru now. If one has the opportunity to see
them side by side they are very easy to distinguish from each other. Both species
belong to the tribe of the saddle-nosed Corydoras. Males stay smaller than the
females. So far the fish have proofed to be hardy aquarium inhabitants. A tank for
Corydoras should in general have at least in part a bottom of fine, smooth sand.
Worms (Tubifex) are the preferred food, but they feed readily on anything that is
usually fed on ornamental fish, may it be living, frozen or dried. Both species reach
about 6-7 cm in length.

 
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For our customers: C. orcesi has code 237903 and C. pastazensis code 240304 on our
stocklist. Please note that we exclusively supply the wholesale trade.

Lexicon: Corydoras: from ancient greek, means "with helmet and spear". This refers to
the strong armor and fin spines. orcesi: dedication name in honour of Gustavo
Orcés-Villagomez. pastazensis: after the Rio Pastaza in the Pastaza province,
Ecuador, where the species is found.

Text & photos: Frank Schäfer

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Lamontichthys llanero 

 
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This beautiful catfish comes from Venezuela. Lamontichthys are very sensitive and
need extremely clean water. Another problem is that they often refuse food. This is
obviously a problem due to the shyness of the fish. Even relatively small
disturbances let them stop feeding for hours. This is the reason why Lamontichthys
are kept best in single-species tanks.

 
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Here even breeding can be successful. Roughly speaking breeding behaviour is similar
to that of the closely related genus Sturisoma. Interestingly in our importation are
two phenotypes: some fish have very long dorsal fins, others have rather short ones.
It is unknown to us if this is a sexual dimorphism or if we obtained a mixed shipment
of two species which look identically with the exception of the length of the fins.
We still have to learn a lot about these facinating creatures! By the way:
Lamontichthys llanero reaches about 15 cm in length (without the caudal filaments
which sometimes are even longer than the body).

 
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For our customers: the fish have code 264855 on our stocklist. Please note that we
exclusively supply the wholesale trade.

Lexicon: Lamontichthys: dedication name (ichthys is ancient Greek and means "fish")
for Francesca La Monte. llanero: after the Llanos in Venezuela where the species
occurs. 

Text & photos: Frank Schäfer

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Pseudobunocephalus sp. White Peru 

 
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The genus Pseudobunocephalus has been erected quite recently (2008). It is
distinguished from the other banjo cat genera by externally invisible characters of
the teeth and bone structures. As aquarists are more interested in fish than in
technical definitions of genera it may be mentioned that nevertheless there are some
external features that allow to distinguish Pseudobunocephalus from Bunocephalus, the
most similar genus: in Pseudobunocephalus upper and lower jaw are about equally long;
the lateral line is truncated at approximately the level of the dorsal fin origin;
the uppermost and lowermost rays of the caudal fin are the shortest in that fin.

So we can be quite sure that the new banjo cat we were able to import from Peru
belongs to the genus Pseudobunocephalus. However, we were not able to determine the
species so far. If we go for the coloration, the species P. rugosus keys out, which
is known so far from the Paraguay-Paraná-basin only; if we ignore the coloration the
species P. amazonicus keys out. That species occurs in Peru, but is said to have a
strong contrasting dark-light pattern.

 
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May it be as it is: so far no species of Pseudobunocehalus is known which grows
larger than 8 cm and so we can assume that the new white one also stays small. This
makes it an interesting addition to the species of banjo cat available in the hobby.

For our customers: the fish has code 212892 on our stocklist. Please note that we
exclusively supply the wholesale trade.

Lexicon: Pseudobunocephalus: ancient Greek, means "false Bunocephalus". Bunocephalus
is another genus of banjo cat. The name was chosen because in the past members of
Pseudobunocephlus often have been mistaken for juveniles of Bunocephalus.
Bunocephalus: ancient Greek, means "with hilly head". rugosus: Latin, means
"wrinkled, rugose". amazonicus: after the Amazon river, where the species occurs. 

Text & photos: Frank Schäfer

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...and please do not forget to visit our homepage <http://www.aquariumglaser.com/en/>
to get weekly updates !

 


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Aquarium Glaser GmbH
Liebigstraße 1
D-63110 Rodgau, Germany
Telefon: +49 (0)6106 / 690 1 0
Telefax: +49 (0)6106 / 690 1 11
Email: info  aquariumglaser.de 

Managing Director: Ursula Glaser-Dreyer 

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Registernummer: HRB 2 1967
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