Variation in head morphology in the electric knifefish Apteronotus brasiliensis (Reinhardt, 1852) (Gymnotiformes: Apteronotidae) in the Paraná and São Francisco River Basins

Authors

  • Mauro L. Triques Departamento de Zoologia do Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais.
  • Volney Vono Deceased

DOI:

https://doi.org/10.35699/2675-5327.2013.23843

Keywords:

freshwater, morphology, Neotropical fish, Ostariophysi, Teleostei, systematics

Abstract

Specimens of Apteronotus brasiliensis from Paraná and São Francisco River basins (Brazil) present snout always moderately elongated, that can be oblique or directed forward or strongly downward. Detailed examination revealed that these head-morphology differences are related to individual variation, not to sex, ontogeny or geographic distribution.

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Published

2013-08-13

Issue

Vol. 11 No. 1 (2013):

Section

Short communications

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

How to Cite

Variation in head morphology in the electric knifefish Apteronotus brasiliensis (Reinhardt, 1852) (Gymnotiformes: Apteronotidae) in the Paraná and São Francisco River Basins. (2013). Lundiana: International Journal of Biodiversity, 11(1), 73-77. https://doi.org/10.35699/2675-5327.2013.23843