Vertebrate Zoology 61(1): 3-12, doi:
Hemigrammus filamentosus spec. nov. - der Südamerikanische Fadensalmler, ein neuer Salmler (Teleostei: Characiformes: Characidae) aus dem Araguaya-Becken in Brasilien
expand article infoAxel Zarske‡
‡ Senckenberg Naturhistorische Sammlungen Dresden, Museum für Tierkunde,, Dresden,, Germany

Corresponding author: Axel Zarske ( axel.zarske@senckenberg.de )

© Axel Zarske.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Zarske A (2011) Hemigrammus filamentosus spec. nov. - der Südamerikanische Fadensalmler, ein neuer Salmler (Teleostei: Characiformes: Characidae) aus dem Araguaya-Becken in Brasilien. Vertebrate Zoology 61(1): 3-12
Open Access
Abstract
Hemigrammus fi lamentosus spec. nov. from the rio Araguaya basin is described. There are a typical and a pathological form of the species. The species is closely related with H. taphorni Benine & Lopez, 2007. Typically are (1) the sexualdimorphism and sexualdichromatism, (2) the development of a humeral spot (no humeral spot in H. fi lamentosus spec. nov. vs. a humeral spot in H. taphorni), (3) the development of a caudal spot (a longitudinal band in the caudal region of the body and no caudal spot in H. fi lamentosus spec. nov. vs. a caudal spot in H. taphorni), (4) the number of lateral scales (32 to 35 in H. fi lamentosus spec. nov. vs. 30 to 32 in H. taphorni).
Keywords
Systematics, new species, Characiformes, South America, Hemigrammus