[Cyprinodontiformes] Aquarium Glaser Newsletter September 24th, 2010

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Domingo, 26 de Setembro de 2010 - 23:28:25 WEST

Prezados colegas,


Estamos finalmente actualizados em termos de datas, mesmo em relação à "newsletter"
da Glaser.

Caso haja alguma disponibilidade, na próxima semana começo a enviar-vos outro tipo de
conteúdos que estão há espera de uma oportunidade.

Um abraço

Miguel Andrade 


De: Aquarium Glaser GmbH [mailto:info  aquariumglaser.de] 
Enviada: Nenhum
Para: Miguel Andrade
Assunto: [Provavel SPAM] Aquarium Glaser Newsletter September 24th, 2010



Newly in: Electric eels


Wonderful Electric eels (Electrophorus electricus) from Peru reached us lately. The
animals are 40-50 cm long. The three of them are astonishingly peaceful among each
other and feed readily. The fish have nice pale spots on the flanks, which are
typical for specimens from Peru and which make the fish even more attractive.


For our customers: the fish have code 253206 on our stocklist. Please note that we
exclusively supply the wholesale trade.

Lexicon: Electrophorus: named after an early physical instrument which transformed
mechanical work in electrostatic charge. electricus: Latin,means "electrical".

Text & photos: Frank Schäfer


Parapteronotus bonapartii


There is a lot of movement in the South American Knifefishes. Science has put an eye
on these fascinating, electrical fishes and so a flood of new species descriptions
and revisions has been published quite recently. Most genera and species are only
weakly electric anduse the electric pulses for orientation and communication.
However, the Electric eel (Electrophorus electricus), which belongs also to the South
American Knifefishes, can produce electric shocks that can beeven fatal to human
beings (500 volts at 1 ampere).


Parapteronotus bonapartii can reach a total length of up to 40-50 cm.The history of
its scientific names is long and complicated. It was back in 1942 that Eigenmann and
Allen described a grotesque knifefish with an enormous snout under the name of
Apteronotus anas. It took until 2002 to find that A. anas represents only the fertile
male of the already known species Apteronotus hasemani which was described in 1913.
It could be shown that the snout of the male grows constantly when the individual
reaches sexual maturity. Consequently the name Apteronotus anas became a synonym (=
invalid name) of the elder A. hasemani. Even one year before this discovery was
published by Fernades et al. Albert (2001) described a new genus, Parapteronotus for
A. hasemani. Sadly this was not mentioned in Fernades et al., probably due to
overlapping of the submissions of both papers. Finally, in 2007 Triques showed that
A. hasemani is identical with the species described in 1855 by Castelnau under the
name of Sternarchus bonapartii. So the currently valid name of the fish is
Parapteronotus bonapartii.


We were able to import apair of these fantastic fishes from Peru now for the first
time. The specimensare 30 - 35 cm long already. As Apteronotus-species are known to
be sometimes quite nasty against each other we keep the two fish separated.The
animals have very obvious teeth. The sense of them is unknown so far. Our knifefish
do not feed on small fish. Mainly they get live Tubifex which are taken readily.

Nothing is known about the breeding behaviour of Parapteronotus bonapartii. However,
the close relative Apteronotus leptorhynchus has been bred in aquaria already
(Kirschbaum & Schugardt, 2002). The latter species does not take broodcare in any


For our customers: the fish have code 277607 on our stocklist. Please note that we
exclusively supply the wholesale trade. Our pair has already found a new owner.

Lexicon: Apteronotus: ancient Greek, means "with no fin on the back". Parapteronotus:
ancient Greek, means"close to Apteronotus"; this ismeant in the sense of
sister-groups.Apteronotus is another genus of knifefish.leptorhynchus: ancient
Greek,means "with a small snout". hasemani:dedication name for J. D. Haseman.
Sternarchus: ancient Greek,means"breastbone-anus". bonapartii: dedication name for
prince Charles Bonaparte, "a prince of science". anas: Latin,means"duck".

Suggestion of a common name: duckbill-knifefish

Text & photos: Frank Schäfer


Albert,J.S. (2001): Species diversity and phylognetic systematics of American
knifefishes (Gymnotiformes, Teleostei).MiscellaneousPublications,Museum of Zoology,
University of Michigan No.190: i-vi +1-127.

Castelnau, F. L (1855): Poissons.In:Animaux nouveaux or raresrecueillis pendant
l'expédition dans les parties centrales de l'Amérique du Sud, de Rio de Janeiro a
Lima, et de Lima au Para; exécutée par ordredu gouvernement Français pendant les
années 1843 a 1847 ... Part 7,Zoology. Animaux nouveaux or rares recueillis pendant
l'expédition dans les parties centrales del'Amérique du Sud, de Rio de Janeiro a
Lima,... v. 2: i-xii +1-112,Pls. 1-50.

Cox Fernandes,C. C. , J.G.Lundberg, & C. Riginos (2002): Largest of allelectric-fish
snouts:Hypermorphic facial growth in male Apteronotus hasemani and the identity of
Apteronotus anas (Gymnotiformes:Apteronotidae).Copeia 2002 (no. 1): 52-61.

Kirschbaum, F. &C.Schugardt (2002): Reproductive strategies and developmental aspects
of mormyrid and gymnotiform fishes. Journal of Physiology-Paris96:557-566.

Triques, M. L.(2007):Parapteronotus bonapartii (Castelnau), considerado sinônimo
sênior de Parapteronotus hasemani (Ellis) (Teleostei, Apteronotidae). Revista
asileira de Zoologia v. 24 (no. 1): 84-86.


Colisa lalia "Neon Coral" und "Turquoise"


There are two new sports of the dwarf gourami available. "Neon Coral" is a solid blue
lalia with remainers of the red stripes which appear inthe wild coloured fish. The
amount of red differs individually. The females of this variety is very similar to
the wild coloured type.


"Turquoise", on the other hand,is a solid red lalia with blue colour elements. In the
most attractive individuals the blue stripes melt to a solid bar. In this variety the
females look like "Flame Red", eg they are reddish and stripeless.



The news sports of C.lalia can be kept  like any other dwarf gourami. This orchids
among the ornamental fish for sure will find fans in the aquarium community.

For our customers: "NeonCoral" has code 411655, "Turquoise" 411735 on our stocklist.
Please note that we exclusively supply the wholesale trade.

Lexicon: Colisa: after an local name for these fishes in Bengal. lalia: after an
local name for this fish in Bengal.

Text & photos: Frank Schäfer



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