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11 August 2015 A new species of electric knifefish from the rio Negro, Amazon basin (Gymnotiformes: Hypopomidae, Microsternarchini)
Cristina Cox Fernandes, Adília Nogueira, Andrew Williston, José Antônio Alves-Gomes
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Abstract

A new species of electric knifefish of the genus Microsternarchus is described from the central basin of the rio Negro, Brazil. The new species is distinguished in external features from its single congener, Microsternarchus bilineatus, by the presence of a short caudal filament, a lower number of anal-fin rays, and uniform body pigmentation. Internally, features of the skeleton also distinguish the two species, in particular in the shape of the maxilla and antorbital.

Cristina Cox Fernandes, Adília Nogueira, Andrew Williston, and José Antônio Alves-Gomes "A new species of electric knifefish from the rio Negro, Amazon basin (Gymnotiformes: Hypopomidae, Microsternarchini)," Proceedings of the Academy of Natural Sciences of Philadelphia 164(1), 213-227, (11 August 2015). https://doi.org/10.1635/053.164.0113
Published: 11 August 2015
JOURNAL ARTICLE
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KEYWORDS
AMAZON
freshwater fish
Neotropical fish
Ostariophysi
South America
taxonomy
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