About the Authors

Carlos David de Santana

apteronotidae@ig.com.br

Affiliations Division of Fishes, Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, D. C., United States of America, Setor de Ictiologia, Museu Paraense Emilio Goeldi, Belém, Pará, Brazil

Richard P. Vari

Affiliation Division of Fishes, Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, D. C., United States of America

Wolmar B. Wosiacki

Affiliation Setor de Ictiologia, Museu Paraense Emilio Goeldi, Belém, Pará, Brazil

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CDS RPV WBW. Performed the experiments: CDS RPV WBW. Analyzed the data: CDS RPV WBW. Contributed reagents/materials/analysis tools: CDS RPV WBW. Wrote the paper: CDS RPV WBW.