Original description as Xenotoca lyonsi:
- Domínguez Domínguez, Omar & D.M Bernal-Zuñiga, K.R. Pyler. 2016. "Two new species of the genus Xenotoca Hubbs and Turner, 1939 (Teleostei, Goodeidae) from central-western Mexico". Zootaxa. v. 4189(n. 1), pp. 81-98 (ffm00865) (abstract)
Conservation: Xenotoca lyonsi is not evaluated by the international union for the conservation of nature in the iucn red list of threatened species.