Třída: Actinopterygii - paprskoploutví
Řád: Cyprinodontiformes - halančíkovci
Čeleď: Poeciliidae - živorodkovití

Synonyma: Fundulus inurus (Jordan & Gilbert, 1882); Gambusia affinis affinis (Baird & Girard, 1853); Gambusia affinis katruelis (Baird & Girard, 1853); Gambusia gracilis Girard, 1859; Gambusia humilis Günther, 1866; Gambusia patruelis (Baird & Girard, 1853); Haplochilus melanops Cope, 1870; Heterandria affinis Baird & Girard, 1853; Heterandria patruelis Baird & Girard, 1853; Zygonectes brachypterus Cope, 1880; Zygonectes gracilis (Girard, 1859); Zygonectes inurus Jordan & Gilbert, 1882; Zygonectes patruelis (Baird & Girard, 1853).

Typová lokalita: Rio Medina a Rio Salado, Texas, USA.

Reference: Baird, S. F. & C. F. Girard 1853. Descriptions of new species of fishes collected by Mr. John H. Clark, on the U. S. and Mexican Boundary Survey, under Lt. Col. Jas. D. Graham. Proceedings of the Academy of Natural Sciences of Philadelphia v. 6: 387-390.