最初命名為 Heterandia occidentalis:
- Baird, Spencer 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. 6:387-390 (ffm04562)
同種異名 (1):
- Arizonichthys psammophilus Nichols, 1940, 其模式產地在 3.5 miles east of Tanque Verde, Pima County, Arizona, U.S.A. 鑑定者: Minckley & Marsh, 2009
保育: Poeciliopsis occidentalis 尚未被國際自然保育聯盟列入IUCN受威脅物種紅皮書名單中.