Uznawany jako synonim Pseudoxiphophorus bimaculatus (Heckel, 1848)
- 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)
Oryginalny opis jako Pseudoxiphophorus bimaculatus peninsulae:
- Hubbs, Carl Leavitt. 1936. "Fishes of the Yucatan Peninsula". Carnegie Institute Washington Publications. (457)157-287 (ffm00250)