A new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the río Madre de Dios basin, Peru [Corydoras knaacki]

  • Luiz Fernando Caserta Tencatt and Hans-Georg Evers

    Zitat

    A new species of Corydoras is described from the río Madre de Dios basin, Peru. The new species can be distinguished from its congeners by presenting the following features: a longitudinal black stripe along midline of flank; mesethmoid short, with anterior portion poorly developed; serrations on posterior margin of pectoral spine directed towards the tip of the spine; dorsal fin with the region of the first branched ray, including membrane, with concentration of black pigmentation, the remaining areas with irregular black blotches; absence of a vertically elongated black blotch across the eyes; conspicuously rounded moderately-developed black spots on the snout; and ventral expansion of infraorbital 1 moderately developed.


    Quelle: Neotropical Ichthyology, 14(1): e150019, 2016

  • Hi,

    Corydoras knaacki ... wurde nach Dr. Joachim Knaack (1933-2012) benannt.
    Mehr als 60 Jahre hatte er sich mit südamerikanische Welse, insbesondere der Gattung Corydoras beschäftigt.
    Danke, dass so sein Andenken bewahrt wird.

    Viele Grüße
    Elko