Original description as Chirostoma mezquital:
- Meek, Seth Eugene. 1904. "The fresh-water fishes of Mexico north of the isthmus of Tehuantepec". Field Columbian Museum Publication. 1-252 (ffm00159)
Conservation: Chirostoma mezquital is evaluated by the international union for the conservation of nature in the iucn red list of threatened species as (EN) endangered (2018).