Considered a synonym of Heterophallus rachovii Regan, 1914
- Rosen, Donn E & R.M. Bailey. 1963. "The poeciliid fishes (Cyprinodontiformes), their structure, zoogeography, and systematics". Bulletin of the American Museum of Natural History. 126(1):1-176 (ffm04566)
Original description as Gambusia atzi:
- Rosen, Donn E & M. Gordon. 1951. "A new fish of the genus Gambusia from southern Veracruz, Mexico, with a discussion of the tribe Gambusiini Hubbs". Zoologica, Scientific Contributions of the New York Zoological Society. 36(21):267-272 (ffm04591)