Results 111 to 120 of about 1,864 (206)

On some species of Astyanax reported erroneously from Argentina [PDF]

open access: yes, 2015
Several species of Astyanax have been reported from Argentina which currently are considered not to be distributed so far South or whose identity as Astyanax is doubtful.
Koerber, Stefan, Mirande, Juan Marcos
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Age determination by sclerite numbers, and scale variations in six fish species from the Central Amazon (Osteichthyes, Characoidei)

open access: yes, 1984
The scales of 6 different species of three families (Brycon cf. melanopterus (Characidae), Semaprochilodus theraponura (Curimatidae), Semaprochilodus taeniulus (Curimatidae), Prochilodus nigricans (Curimatidae), Curimata cf .
Soares, G., Werder, U.
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Ichthyological ecoregions of Argentina [PDF]

open access: yes, 2002
The Argentine Republic is situated in the southernmost portion of the American continent, occupying over 2,785,600 km2 not including the Antarctic territory. The country ranges from subtropical areas (21º46’S) to subantarctic regions (55º03’S), extending
López, Hugo Luis   +2 more
core  

A redescription of Astyanax gymnodontus (Eigenmann, 1911), new combination, a polymorphic characid fish from the rio Iguaçu basin, Brazil

open access: yesNeotropical Ichthyology
Astyanax gymnodontus (Eigenmann, 1911), new combination, a polymorphic characid fish endemic to the Rio Iguaçu basin in Southern Brazil, is redescribed.
Carla Simone Pavanelli   +1 more
doaj   +1 more source

On the homologies of the skeletal components of catfish (Teleostei: Siluriformes) suspensorium [PDF]

open access: yes, 2001
There has been much controversy concerning the identity of the components of the suspensorium in Siluriformes (catfishes). This confusion has implications not only for comparative morphology, but also for phylogenetic studies.
Chardon, M., Diogo, R., Oliveira, C.
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A new species of Hemibrycon (Teleostei: Characiformes: Characidae) from the río Ucayali drainage, Sierra del Divisor, Peru

open access: yesNeotropical Ichthyology
A new characid species, Hemibrycon divisorensis, is described from the río Ucayali drainage, Loreto, Peru. The new species is distinguished from all Hemibrycon species by the presence of a wide black asymmetrical spot covering base of caudal-fin rays and
Vinicius A. Bertaco   +3 more
doaj   +1 more source

Description d'Acnodon senai n. sp. du Rio Jari (Brésil, Amapa) et redescription d'A. normani (Teleostei, serrasalmidae) [PDF]

open access: yes, 1990
#Acnodon senai$ n. sp., décrite du rio Jari (Brésil, Amapa), est une espèce proche de #A. normani$ Gosline, 1951 décrite du rio Tocantins. Ces deux espèces ont un museau pointu, une bouche terminale et deux séries de dents du prémaxillaire nettement ...
Dos Santos, G.M., Jégu, Michel
core  

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