Original description as Xenotoca melanosoma:
- Fitzsimons, John Michael. 1972. "A revision of two genera of goodeid fishes (Cyprinodontiformes, Osteichthyes) from the Mexican Plateau". Copeia. v. 1972(n. 4), pp. 728-756 (ffm00001) (abstract)
Conservation: Xenotoca melanosoma is not evaluated by the international union for the conservation of nature in the iucn red list of threatened species.