- Descrito por / Described by:
Henry W. Fowler, 1939

- Nome original / Original name:
Acestrorhynchus cachorro

- Nome do artigo / Article name:
A collection of fishes obtained by Mr. William C. Morrow in the Ucayali River Basin, Peru.

- Publicado em / Published in:
Proceedings of the Academy of Natural Sciences of Philadelphia v. 91 (for 1939): 219-289.

- Localidade tipo / Type locality:
Boca Chica, bacia do rio Ucayali, Peru. / Boca Chica, Río Ucayali basin, Peru.