Psalidodon fasciatus, commonly known as the banded astyanax, is a species of fish widespread in the Americas from Mexico to Argentina.[2] It grows up to 17.1 cm (6.7 in) in length.[3] Formerly thought to be closely related to the Mexican tetra, it is now in the same genus as the Buenos Aires tetra.[4]
^Sazima, Ivan (December 1977). "Possible case of aggressive mimicry in a neotropical scale-eating fish". Nature. 270 (5637): 510–512. Bibcode:1977Natur.270..510S. doi:10.1038/270510a0.