Hi,
... sehr schön. Vielen Dank.
Der Dornwelse könnte ein junger Amblydoras bolivarensis sein.
Viele Grüße
Elko
Beiträge von L-ko
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G.M. Dutra, T.M.S. Freitas, B.S. Prudente, G.N. Salvador, M.D.V. Leão, L.A.W. Peixoto, M.B. Mendonça, A.L. Netto-Ferreira, F.R. Silva, L.F.A. Montag & W.B. Wosiacki
"Rapid assessment of the ichthyofauna of the southern Guiana Shield tributaries of the Amazonas River in Pará, Brazil"Acta Amazonica Vol. 50 No. 1
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Hier soll es sich um Corydoras sp. "CW154" handeln.
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Hi,
Zwei Anmerkungen noch:
1.) Die Autoren haben sich für eine neue Subspecies entschieden, da sich Panaque nigrolineatus nigrolineatus (L 190) und Panaque nigrolineatus laurafabianae (L 330) nur im Aussehen unterscheiden.
2.) Die Autoren berichten weiter, dass in Kolumbien eine jährliche Exportquote für solche Panaque-Arten (o.g. Arten und Panaque cf. titan (L191)) von insgesamt 180.000 Stück besteht.
Viele Grüße
Elko
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Renan B. dos Reis, Augusto Frota, Thomaz M.C. Fabrin & Weferson J. da Graça
Journal of Fish Biology, Vol. 96, Iss. 2, S. 350-363
(Der vollständige Artikel ist kostenpflichtig.) -
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Laura M. Donin, Juliano Ferrer & Tiago P. Carvalho
Taxonomical study of Trichomycterus (Siluriformes: Trichomycteridae) from the Ribeira de Iguape River basin reveals a new species recorded in the early 20th century
Journal of Fish Biology(Der vollständige Artikel ist kostenpflichtig.)
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Wilson J.E.M. Costa, Paulo Vilardo & Axel M. Katz
Zoologischer Anzeiger, Vol. 285, S. 12-17
(Der vollständige Artikel ist kostenpflichtig.)
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Carlos DoNascimiento & Saúl Prada-Pedreros
Journal of Fish Biology
(Der vollständige Artikel ist kostenpflichtig.)
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Elisabeth Henschel, Pedro H.N. Bragança, Filipe Rangel-Pereira, Wilson J.E.M. Costa
ZitatAbstract
Ammoglanis obliquus sp. nov., a minute catfish species reaching a maximum adult size of 15.5 mm, is described from the Rio Preto da Eva drainage in the central Brazilian Amazon. It is distinguished from all of its congeners in possessing an exclusive combination of character states, including the presence and number of premaxillary and dentary teeth, number of interopercular and opercular odontodes, presence of cranial fontanel, number of dorsal-fin rays, number of anal-fin rays, number of caudal-fin rays, number of pelvic-fin rays, number of pectoral-fin rays, absence of pelvic splint, antorbital morphology, and absence of supraorbital and autopalatine morphology. It is considered to be a member of a clade also including A. pulex and A. amapaensis due to the unique oral, antorbital, and autopalatine morphology. Ammoglanis obliquus is regarded as more closely related to A. pulex than to any other congener, as both species exhibit a similar colour pattern, an absence of the metapterygoid, and the presence of two finger-like projections on the chin region.
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Flávio C.T. Lima & Marcelo R. Brito
ZitatAbstract
A new Corydoras is described from the rio Juruena system, upper rio Tapajós drainage, Amazon basin, Brazil. The new Corydoras is distinguished from all congeners by presenting a combination of a conspicuous broad vertical dark bar on head, at the level of the eye (mask), an overall light background color without large blotches or stripes on body or fins, the presence of two to four small dark blotches along the midline, and pectoral spine with antrorse serrations on its posterior margin. Males of the new species possess numerous, well-developed odontodes over the lateral portions of head, pectoral girdle, and pectoral spines, an uncommon feature for the genus. The new species is hypothesized to belong, within the genus Corydoras, either to Lineage 6 or Lineage 9.
Quelle: ZooTaxa, Vol. 4742, No. 3 (Der vollständige Artikel ist kostenpflichtig.)
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Moin,
... danke, ist korrigiert.
Viele Grüße
Elko
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A. Ortega-Lara & N.K. Lujan
ZitatAbstract
The suckermouth armored catfish genus Panaque contains seven valid species, including the Royal Pleco, Panaque nigrolineatus, which has long been popular as an ornamental aquarium fish and was originally described from the Apure River basin in Venezuela. We examine a phenotypically distinct population of P. nigrolineatus from the Guaviare River in southern Colombia at the southwesternmost corner of the Orinoco River basin. In contrast to typically boldly striped populations from closer to the type locality of P. nigrolineatus, the Guaviare River basin population is usually boldly spotted, earning them the common name Watermelon Pleco in the aquarium fish trade. Because of the commercial popularity of this distinctive color morph, it is heavily exploited for export to the global ornamental fish trade. We find that the Guaviare River P. nigrolineatus laurafabianae is not only distinct geographically and in color pattern, but is also morphometrically diagnosable from P. nigrolineatus individuals from outside the Guaviare River basin. However, relatively subtle phenotypic differences, invariance in nuclear DNA markers, < 0.5% divergence in mitochondrial DNA markers 16S, cytb, and ND2, and the non-monophyly of Guaviare River populations prevent us from robustly inferring species-level distinctiveness of the Watermelon Pleco. We therefore propose to recognize this population as a distinct subspecies.
Quelle: Zootaxa, Vol. 4732, No. 3 (Der vollständige Artikel ist kostenpflichtig.)
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Danke für die Info
Viele Grüße
Elko
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Hallo Silvio,
... danke für die Info. Schade, dass nicht bekannt ist, wie alt er war, als Du ihn bekommen hast.
Ich habe auch keine Informationen wann die etwa 12 cm sind.
Insofern ist der von Stephan mit mehr als 26 weiterhin der Spitzenreiter von Platydoras armatulus
Viele Grüße
Elko