- Descrito por / Described by:
Henry W. Fowler, 1941

- Nome original / Original name:
Brycon matrinchao

- Nome do artigo / Article name:
A collection of fresh-water fishes obtained in eastern Brazil by Dr. Rodolpho von Ihering.

- Publicado em / Published in:
Proceedings of the Academy of Natural Sciences of Philadelphia v. 93: 123-199.

- Localidade tipo / Type locality:
Rio Parnaíba, Terezina, Piauí, Brasil. / Rio Parnahyba, Therezina, Piauhy, Brazil.